List of 7400-series integrated circuits

Short description: none

The following is a list of 7400-series digital logic integrated circuits. In the mid-1960s, the original 7400-series integrated circuits were introduced by Texas Instruments with the prefix "SN" to create the name SN74xx. Due to the popularity of these parts, other manufacturers released pin-to-pin compatible logic devices and kept the 7400 sequence number as an aid to identification of compatible parts. However, other manufacturers use different prefixes and suffixes on their part numbers.

## Contents

* 1 Overview
* 2 Logic gates
* 3 Larger footprints
* 3.1 74x00 – 74x99
* 3.2 74x100 – 74x199
* 3.3 74x200 – 74x299
* 3.4 74x300 – 74x399
* 3.5 74x400 – 74x499
* 3.6 74x500 – 74x599
* 3.7 74x600 – 74x699
* 3.8 74x700 – 74x799
* 3.9 74x800 – 74x899
* 3.10 74x900 – 74x999
* 3.11 74x1000 – 74x1999
* 3.12 74x2000 – 74x2999
* 3.13 74x3000 – 74x3999
* 3.14 74x4000 – 74x5999
* 3.15 74x6000 and above
* 4 Smaller footprints
* 4.1 One-gate chips
* 4.2 Two-gate chips
* 4.3 Three-gate chips
* 4.4 Voltage translation
* 5 See also
* 6 References
* 7 Further reading

## Overview

Some TTL logic parts were made with an extended military-specification temperature range. These parts are prefixed with 54 instead of 74 in the part number.[1]

A short-lived 64 prefix on Texas Instruments parts indicated an industrial temperature range; this prefix had been dropped from the TI literature by 1973. Most recent 7400-series parts are fabricated in CMOS or BiCMOS technology rather than TTL. Surface-mount parts with a single gate (often in a 5-pin or 6-pin package) are prefixed with 741G instead of 74.

Some manufacturers released some 4000-series equivalent CMOS circuits with a 74 prefix, for example, the 74HC4066[2] was a replacement for the 4066 with slightly different electrical characteristics (different power-supply voltage ratings, higher frequency capabilities, lower "on" resistances in analog switches, etc.). See List of 4000-series integrated circuits. Conversely, the 4000-series has "borrowed" from the 7400 series - such as the CD40193 and CD40161 being pin-for-pin functional replacements for 74C193 and 74C161.

Older TTL parts made by manufacturers such as Signetics, Motorola, Mullard and Siemens may have different numeric prefix and numbering series entirely, such as in the European FJ family FJH101 is an 8-input NAND gate like a 7430.

A few alphabetic characters to designate a specific logic subfamily may immediately follow the 74 or 54 in the part number, e.g., 74LS74 for low-power Schottky. Some CMOS parts such as 74HCT74 for high-speed CMOS with TTL-compatible input thresholds are functionally similar to the TTL part. Not all functions are available in all families. The generic descriptive feature of these alphabetic characters was diluted by various companies participating in the market at its peak and are not always consistent especially with more recent offerings. The National Semiconductor trademarks of the words FAST[3] and FACT[4] are usually cited in the descriptions from other companies when describing their own unique designations.[5][6]

In a few instances, such as the 7478 and 74107, the same suffix in different families do not have completely equivalent logic functions.

Another extension to the series is the 7416xxx variant, representing mostly the 16-bit-wide counterpart of otherwise 8-bit-wide "base" chips with the same three ending digits. Thus e.g. a "7416373" would be the 16-bit-wide equivalent of a "74373". Some 7416xxx parts, however, do not have a direct counterpart from the standard 74xxx range but deliver new functionality instead, which needs making use of the 7416xxx series' higher pin count. For more details, refer primarily to the Texas Instruments documentation mentioned in the References section.

For CMOS (AC, HC, etc.) subfamilies, read "open drain" for "open collector" in the table below.

There are a few numeric suffixes that have multiple conflicting assignments, such as the 74453.

## Logic gates

Schematic of 74LS51 IC consists of a 3-3 AOI gate and 2-2 AOI gate. AOI means AND-OR-Invert (AND-NOR). Most AOI chips are currently obsolete.

74LS51 pinout diagram

TI SN74LS51 in DIP-14 package

Since there are numerous 7400-series parts, the following groups related parts to make it easier to pick a useful part number. This section only includes combinational logic gates.

For part numbers in this section, "x" is the 7400-series logic family, such as LS, ALS, HCT, AHCT, HC, AHC, LVC, ...

Normal inputs / push–pull outputs

Configuration | Buffer | Inverter

|
|

Hex 1-input | 74x34 | 74x04

Configuration | AND | NAND | OR | NOR | XOR | XNOR

|
|
|
|
|
|

Quad 2-input | 74x08 | 74x00 | 74x32 | 74x02 | 74x86 | 74x7266
Triple 3-Input | 74x11 | 74x10 | 74x4075 | 74x27 | n/a | n/a
Dual 4-input | 74x21 | 74x20 | 74x4072 | 74x29 | n/a | n/a
Single 8-input | n/a | 74x30 | 74x4078 | 74x4078 | n/a | n/a

Schmitt-trigger inputs / push–pull outputs

Configuration | Buffer | Inverter

|
|

Hex 1-input | 74x7014 | 74x14

Configuration | AND | NAND | OR | NOR

|
|
|
|

Quad 2-input | 74x7001 | 74x132 | 74x7032 | 74x7002
Dual 4-input | n/a | 74x13 | n/a | n/a

Normal inputs / open-collector outputs

Configuration | Buffer | Inverter

|
|

Hex 1-input | 74x07 | 74x05

Configuration | AND | NAND | OR | NOR | XOR | XNOR

|
|
|
|
|
|

Quad 2-input | 74x09 | 74x03 | n/a | 74x33 | 74x136 | 74x266
Triple 3-input | 74x15 | 74x12 | n/a | n/a | n/a | n/a
Dual 4-input | n/a | 74x22 | n/a | n/a | n/a | n/a

Schmitt-trigger inputs / three-state outputs

Configuration | Buffer  | Inverter

|
|

Octal 1-input | 74x241
74x244  | 74x240

AND-OR-invert (AOI) logic gates
NOTE: in past decades, a number of AND-OR-invert (AOI) parts were available in 7400 TTL families, but currently most are obsolete.

* SN5450 = dual 2-2 AOI gate, one is expandable (SN54 is military version of SN74)
* SN74LS51 = 2-2 AOI gate and 3-3 AOI gate
* SN54LS54 = single 2-3-3-2 AOI gate

## Larger footprints

Parts in this section have a pin count of 14 pins or more. The lower part numbers were established in the 1960s and 1970s, then higher part numbers were added incrementally over decades. IC manufacturers continue to make a core subset of this group, but many of these part numbers are considered obsolete and no longer manufactured. Older discontinued parts may be available from a limited number of sellers as new old stock (NOS), though some are much harder to find.

For the following table:

* Part number column - the "x" is a place holder for the logic subfamily name. For example, 74x00 in "LS" logic family would be "74LS00".
* Description column - simplified to make it easier to sort, thus isn't identical to datasheet title. The terms Schmitt trigger, open-collector/open-drain, three-state were moved to the input and output columns to make it easier to sort by those features.
* Input column - a blank cell means a normal input for the logic family type.
* Output column - a blank cell means a "totem pole" output, also known as a push–pull output, with the ability to drive ten standard inputs of the same logic subfamily (fan-out NO = 10). Outputs with higher output currents are often called drivers or buffers.
* Pins column - number of pins for the dual in-line package (DIP) version; a number in parentheses (round brackets) indicates that there is no known dual in-line package version of this IC.

### 74x00 – 74x99

Part number  | Units | Description | Input | Output | Pins | Datasheet

|
|
|
|
|
|

74x00  | 4  | quad 2-input NAND gate |  |  | 14  | SN74LS00
74x01  | 4  | quad 2-input NAND gate; different pinout for 74H01  |  | open-collector | 14  | SN74LS01
74x02  | 4  | quad 2-input NOR gate |  |  | 14  | SN74LS02
74x03  | 4  | quad 2-input NAND gate  |  | open-collector  | 14  | SN74LS03
74x04  | 6  | hex inverter gate  |  |  | 14  | SN74LS04
74x05  | 6  | hex inverter gate  |  | open-collector  | 14  | SN74LS05
74x06  | 6  | hex inverter gate  |  | open-collector 30 V / 40 mA  | 14  | SN74LS06
74x07  | 6  | hex buffer gate  |  | open-collector 30 V / 40 mA  | 14  | SN74LS07
74x08  | 4  | quad 2-input AND gate |  |  | 14  | SN74LS08
74x09  | 4  | quad 2-input AND gate  |  | open-collector  | 14  | SN74LS09
74x10  | 3  | triple 3-input NAND gate  |  |  | 14  | SN74LS10
74x11  | 3  | triple 3-input AND gate  |  |  | 14  | SN74LS11
74x12  | 3  | triple 3-input NAND gate  |  | open-collector  | 14  | SN74LS12
74x13  | 2  | dual 4-input NAND gate  | Schmitt trigger |  | 14  | SN74LS13
74x14  | 6  | hex inverter gate  | Schmitt trigger  |  | 14  | SN74LS14
74x15  | 3  | triple 3-input AND gate  |  | open-collector  | 14  | SN74LS15
74x16  | 6  | hex inverter gate  |  | open-collector 15 V / 40 mA  | 14  | SN7416
74x17  | 6  | hex buffer gate  |  | open-collector 15 V / 40 mA  | 14  | SN7417
74x18  | 2  | dual 4-input NAND gate  | Schmitt trigger  |  | 14  | SN74LS18
74x19  | 6  | hex inverter gate  | Schmitt trigger  |  | 14  | SN74LS19
74x20  | 2  | dual 4-input NAND gate  |  |  | 14  | SN74LS20
74x21  | 2  | dual 4-input AND gate  |  |  | 14  | SN74LS21
74x22  | 2  | dual 4-input NAND gate  |  | open-collector  | 14  | SN74LS22
74x23  | 2  | dual 4-input NOR gate with strobe, one gate expandable with 74x60  |  |  | 16  | SN7423
74x24  | 4  | quad 2-input NAND gate  | Schmitt trigger  |  | 14  | SN74LS24
74x25  | 2  | dual 4-input NOR gate with strobe  |  |  | 14  | SN7425
74x26  | 4  | quad 2-input NAND gate  |  | open-collector 15 V  | 14  | SN74LS26
74x27  | 3  | triple 3-input NOR gate  |  |  | 14  | SN74LS27
74x28  | 4  | quad 2-input NOR gate  |  | driver NO=30  | 14  | SN74LS28
74x29  | 2  | dual 4-input NOR gate  |  |  | 14  | US7429A
74x30  | 1  | single 8-input NAND gate  |  |  | 14  | SN74LS30
74x31  | 6  | hex delay elements (two 6ns, two 23-32ns, two 45-48ns)  |  |  | 16  | SN74LS31
74x32  | 4  | quad 2-input OR gate |  |  | 14  | SN74LS32
74x33  | 4  | quad 2-input NOR gate  |  | open-collector driver NO=30  | 14  | SN74LS33
74x34  | 6  | hex buffer gate  |  |  | 14  | MM74HC34
74x35  | 6  | hex buffer gate  |  | open-collector  | 14  | SN74ALS35
74x36  | 4  | quad 2-input NOR gate (different pinout than 7402)  |  |  | 14  | SN74HC36
74x37  | 4  | quad 2-input NAND gate  |  | driver NO=30  | 14  | SN74LS37
74x38  | 4  | quad 2-input NAND gate  |  | open-collector driver NO=30  | 14  | SN74LS38
74x39  | 4  | quad 2-input NAND gate (different pinout than 7438)  |  | open-collector 60 mA  | 14  | SN7439
74x40  | 2  | dual 4-input NAND gate  |  | driver NO=30  | 14  | SN74LS40
74x41  | 1  | BCD to decimal decoder / Nixie tube driver  |  | open-collector 70 V  | 16  | DM7441A
74x42  | 1  | BCD to decimal decoder  |  |  | 16  | SN74LS42
74x43  | 1  | excess-3 to decimal decoder  |  |  | 16  | SN7443A
74x44  | 1  | Gray code to decimal decoder  |  |  | 16  | SN7444A
74x45  | 1  | BCD to decimal decoder/driver  |  | open-collector 30 V / 80 mA  | 16  | SN7445
74x46  | 1  | BCD to 7-segment display decoder/driver  |  | open-collector 30 V  | 16  | SN7446A
74x47  | 1  | BCD to 7-segment decoder/driver  |  | open-collector 15 V  | 16  | SN74LS47
74x48  | 1  | BCD to 7-segment decoder/driver  |  | open-collector, 2 kΩ pull-up | 16  | SN74LS48
74x49  | 1  | BCD to 7-segment decoder/driver  |  | open-collector  | 14  | SN74LS49
74x50  | 2  | dual 2-2-input AND-OR-Invert gate, one gate expandable  |  |  | 14  | SN7450
7451, 74H51, 74S51  | 2  | dual 2-2-input AND-OR-Invert (AOI) gate  |  |  | 14  | SN7451
74L51, 74LS51  | 2  | 3-3-input AND-OR-Invert gate and 2-2-input AND-OR-Invert gate  |  |  | 14  | SN74LS51
74x52  | 1  | 3-2-2-2-input AND-OR gate, expandable with 74x61  |  |  | 14  | SN74H52
7453  | 1  | 2-2-2-2-input AND-OR-Invert gate, expandable  |  |  | 14  | SN7453
74H53  | 1  | 3-2-2-2-input AND-OR-Invert gate, expandable  |  |  | 14  | SN74H53
7454  | 1  | 2-2-2-2-input AND-OR-Invert gate  |  |  | 14  | SN7454
74H54  | 1  | 3-2-2-2-input AND-OR-Invert gate  |  |  | 14  | SN74H54
74L54, 74LS54  | 1  | 3-3-2-2-input AND-OR-Invert gate  |  |  | 14  | SN74LS54
74x55  | 1  | 4-4-input AND-OR-Invert gate, 74H55 is expandable  |  |  | 14  | SN74LS55
74x56  | 1  | 50:1 frequency divider |  |  | 8  | SN74LS56
74x57  | 1  | 60:1 frequency divider  |  |  | 8  | SN74LS57
74x58  | 2  | 3-3-input AND-OR gate and 2-2-input AND-OR gate  |  |  | 14  | 74HC58
74x59  | 2  | dual 3-2-input AND-OR-Invert gate  |  |  | 14  | US7459A
74x60  | 2  | dual 4-input expander for 74x23, 74x50, 74x53, 74x55  |  |  | 14  | SN7460
74x61  | 3  | triple 3-input expander for 74x52  |  |  | 14  | SN74H61
74x62  | 1  | 3-3-2-2-input AND-OR expander for 74x50, 74x53, 74x55  |  |  | 14  | SN74H62
74x63  | 6  | hex current sensing interface gates  |  |  | 14  | SN74LS63
74x64  | 1  | 4-3-2-2-input AND-OR-Invert gate  |  |  | 14  | SN74S64
74x65  | 1  | 4-3-2-2 input AND-OR-Invert gate  |  | open-collector  | 14  | SN74S65
74x67  | 1  | AND gated J-K master-slave flip-flop, asynchronous preset and clear (improved 74L72)  |  |  | (16)  | BL54L67Y
74L68  | 2  | dual J-K flip-flop, asynchronous clear (improved 74L73)  |  |  | (18)  | BL54L68Y
74LS68  | 2  | dual 4-bit decade counters  |  |  | 16  | SN74LS68
74L69  | 2  | dual J-K flip-flop, asynchronous preset, common clock and clear  |  |  | (18)  | BL54L69Y
74LS69  | 2  | dual 4-bit binary counters  |  |  | 16  | SN74LS69
74x70  | 1  | AND-gated positive edge triggered J-K flip-flop, asynchronous preset and clear  |  |  | 14  | SN7470
74H71  | 1  | AND-OR-gated J-K master-slave flip-flop, preset  |  |  | 14  | SN74H71
74L71  | 1  | AND-gated R-S master-slave flip-flop, preset and clear  |  |  | 14  | SN54L71
74x72  | 1  | AND gated J-K master-slave flip-flop, asynchronous preset and clear  |  |  | 14  | SN7472
74x73  | 2  | dual J-K flip-flop, asynchronous clear  |  |  | 14  | SN54LS73A
74x74  | 2  | dual D positive edge triggered flip-flop, asynchronous preset and clear  |  |  | 14  | SN74LS74A
74x75  | 2  | 4-bit bistable latch, complementary outputs  |  |  | 16  | SN74LS75
74x76  | 2  | dual J-K flip-flop, asynchronous preset and clear  |  |  | 16  | SN74LS76A
74x77  | 1  | 4-bit bistable latch  |  |  | 14  | SN74LS77
74H78  | 2  | dual positive pulse triggered J-K flip-flop, preset, common clock and common clear  |  |  | 14  | SN74H78
74L78  | 2  | dual positive pulse triggered J-K flip-flop, preset, common clock and common clear  |  |  | 14  | SN54L78
74LS78  | 2  | dual negative edge triggered J-K flip-flop, preset, common clock and common clear  |  |  | 14  | SN74LS78A
74x79  | 2  | dual D positive edge triggered flip-flop, asynchronous preset and clear  |  |  | 14  | MC7479
74x80  | 1  | gated full adder  |  |  | 14  | SN7480
74x81  | 1  | 16-bit RAM  |  |  | 14  | SN7481A
74x82  | 1  | 2-bit binary full adder  |  |  | 14  | SN7482
74x83  | 1  | 4-bit binary full adder  |  |  | 16  | SN74LS83A
74x84  | 1  | 16-bit RAM  |  |  | 16  | SN7484A
74x85  | 1  | 4-bit magnitude comparator |  |  | 16  | SN74LS85
74x86  | 4  | quad 2-input XOR gate |  |  | 14  | SN74LS86A
74x87  | 1  | 4-bit true/complement/zero/one element  |  |  | 14  | SN74H87
74x88  | 1  | 256-bit ROM (32x8)  |  | open-collector  | 16  | SN7488A
74x89  | 1  | 64-bit RAM (16x4), 4 data inputs, 4 inverted data outputs  |  | open-collector  | 16  | SN7489
74x90  | 1  | decade counter (separate divide-by-2 and divide-by-5 sections)  |  |  | 14  | SN74LS90
74x91  | 1  | 8-bit shift register, serial in, serial out, gated input  |  |  | 14  | SN74LS91
74x92  | 1  | divide-by-12 counter (separate divide-by-2 and divide-by-6 sections)  |  |  | 14  | SN74LS92
74x93  | 1  | 4-bit binary counter (separate divide-by-2 and divide-by-8 sections); different pinout for 74L93  |  |  | 14  | SN74LS93
74x94  | 1  | 4-bit shift register, dual asynchronous presets  |  |  | 16  | SN7494
74x95  | 1  | 4-bit shift register, parallel in, parallel out, serial input; different pinout for 74L95  |  |  | 14  | SN74LS95B
74x96  | 1  | 5-bit parallel-in/parallel-out shift register, asynchronous preset  |  |  | 16  | SN74LS96
74x97  | 1  | synchronous 6-bit binary rate multiplier  |  |  | 16  | SN7497
74x98  | 1  | 4-bit data selector/storage register  |  |  | 16  | SN54L98
74x99  | 1  | 4-bit bidirectional universal shift register  |  |  | 16  | SN54L99

### 74x100 – 74x199

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x100  | 2  | dual 4-bit bistable latch  |  |  | 24  | SN74100
74x101  | 1  | AND-OR-gated J-K negative-edge-triggered flip-flop, preset  |  |  | 14  | SN74H101
74x102  | 1  | AND-gated J-K negative-edge-triggered flip-flop, preset and clear  |  |  | 14  | SN74H102
74x103  | 2  | dual J-K negative-edge-triggered flip-flop, clear  |  |  | 14  | SN74H103
74x104  | 1  | J-K master-slave flip-flop  |  |  | 14  | SN74104
74x105  | 1  | J-K master-slave flip-flop, J2 and K2 inverted  |  |  | 14  | SN74105
74x106  | 2  | dual J-K negative-edge-triggered flip-flop, preset and clear  |  |  | 16  | SN74H106
74x107  | 2  | dual J-K flip-flop, clear  |  |  | 14  | SN74107
74x107A  | 2  | dual J-K negative-edge-triggered flip-flop, clear  |  |  | 14  | SN74LS107A
74x108  | 2  | dual J-K negative-edge-triggered flip-flop, preset, common clear and common clock  |  |  | 14  | SN74H108
74x109  | 2  | dual J-NotK positive-edge-triggered flip-flop, clear and preset  |  |  | 16  | SN74109
74x110  | 1  | AND-gated J-K master-slave flip-flop, data lockout  |  |  | 14  | SN74110
74x111  | 2  | dual J-K master-slave flip-flop, data lockout, reset, set  |  |  | 16  | TL74111N
74x112  | 2  | dual J-K negative-edge-triggered flip-flop, clear and preset  |  |  | 16  | SN74LS112A
74x113  | 2  | dual J-K negative-edge-triggered flip-flop, preset  |  |  | 14  | SN74LS113A
74x114  | 2  | dual J-K negative-edge-triggered flip-flop, preset, common clock and clear  |  |  | 14  | SN74LS114A
74x115  | 2  | dual J-K master-slave flip-flop, data lockout, reset  |  |  | 14  | TL74115N
74116, 74L116  | 2  | dual 4-bit latch, clear  |  |  | 24  | SN74116 [7]:1-123
74H116  | 1  | AND-gated J-K flip flop  | ? | ? | 14  | MC74H116
74x117  | 1  | AND-gated J-K flip flop, one J and K input inverted  | ? | ? | 14  | MC74H117
74x118  | 6  | hex set/reset latch, common reset  |  |  | 16  | ITT74118
74119  | 6  | hex set/reset latch  |  |  | 24  | TL74119N [7]:1-125
74H119  | 2  | dual J-K flip-flop, shared clear and clock inputs  | ? | ? | 14  | MC74H119
74120  | 2  | dual pulse synchronizer/drivers  | 15 kΩ pull-up  |  | 16  | SN74120
74H120  | 2  | dual J-K flip-flop, separate clock inputs  | ? | ? | 14  | MC74H120
74x121  | 1  | monostable multivibrator | Schmitt trigger  |  | 14  | SN74121
74x122  | 1  | retriggerable monostable multivibrator, clear  |  |  | 14  | SN74122
74x123  | 2  | dual retriggerable monostable multivibrator, clear  |  |  | 16  | SN74123
74x124  | 2  | dual voltage-controlled oscillator | analog  |  | 16  | SN74S124
74x125  | 4  | quad bus buffer, negative enable  |  | three-state | 14  | SN74LS125A
74x126  | 4  | quad bus buffer, positive enable  |  | three-state | 14  | SN74LS126A
74x128  | 4  | quad 2-input NOR gate  |  | driver 50 Ω | 14  | SN74128
74x130  | 2  | retriggerable monostable multivibrator  |  |  | 16  | SN74130
74131  | 4  | quad 2-input AND gate  |  | open-collector 15 V  | 14  | ITT74131
74AS131, 74ALS131  | 1  | 3-to-8 line decoder/demultiplexer, address register, inverting outputs  |  |  | 16  | SN74AS131
74x132  | 4  | quad 2-input NAND gate  | Schmitt trigger  |  | 14  | SN74LS132
74x133  | 1  | single 13-input NAND gate  |  |  | 16  | SN54ALS133
74x134  | 1  | single 12-input NAND gate  |  | three-state | 16  | SN74S134
74x135  | 4  | quad XOR/XNOR gate, two inputs to select logic type  |  |  | 16  | SN74S135
74x136  | 4  | quad 2-input XOR gate |  | open-collector  | 14  | SN74LS136
74x137  | 1  | 3-to-8 line decoder/demultiplexer, address latch, inverting outputs  |  |  | 16  | SN74LS137
74x138  | 1  | 3-to-8 line decoder/demultiplexer, inverting outputs  |  |  | 16  | SN74LS138
74x139  | 2  | dual 2-to-4 line decoder/demultiplexer, inverting outputs  |  |  | 16  | SN74LS139A
74x140  | 2  | dual 4-input NAND gate  |  | driver 50 Ω  | 14  | SN74S140
74x141  | 1  | BCD to decimal decoder/driver for cold-cathode indicator / Nixie tube  |  | open-collector 60 V  | 16  | DM74141
74x142  | 1  | decade counter/latch/decoder/driver for Nixie tubes  |  | open-collector 60 V  | 16  | SN74142
74x143  | 1  | decade counter/latch/decoder/7-segment driver  |  | constant current 15 mA  | 24  | SN74143
74x144  | 1  | decade counter/latch/decoder/7-segment driver  |  | open-collector 15 V / 25 mA  | 24  | SN74144
74x145  | 1  | BCD to decimal decoder/driver  |  | open-collector 15 V / 80 mA  | 16  | SN74145
74x146  | 1  | 3-to-8 line decoder  |  |  |  | MCE74H146
74x147  | 1  | 10-line to 4-line priority encoder  |  |  | 16  | SN74147
74x148  | 1  | 8-line to 3-line priority encoder  |  |  | 16  | SN74148
74x149  | 1  | 8-line to 8-line priority encoder  |  |  | 20  | MM74HCT149
74x150  | 1  | 16-line to 1-line data selector/multiplexer |  |  | 24  | SN74150
74x151  | 1  | 8-line to 1-line data selector/multiplexer  |  |  | 16  | SN74151A
74x152  | 1  | 8-line to 1-line data selector/multiplexer, inverting output  |  |  | 14  | SN54152A
74x153  | 2  | dual 4-line to 1-line data selector/multiplexer, non-inverting outputs  |  |  | 16  | SN74153
74x154  | 1  | 4-to-16 line decoder/demultiplexer, inverting outputs  |  |  | 24  | SN74154
74x155  | 2  | dual 2-to-4 line decoder/demultiplexer, inverting outputs  |  |  | 16  | SN74155
74x156  | 2  | dual 2-to-4 line decoder/demultiplexer, inverting outputs  |  | open-collector  | 16  | SN74156
74x157  | 4  | quad 2-line to 1-line data selector/multiplexer, non-inverting outputs  |  |  | 16  | SN74157
74x158  | 4  | quad 2-line to 1-line data selector/multiplexer, inverting outputs  |  |  | 16  | SN74LS158
74x159  | 1  | 4-to-16 line decoder/demultiplexer  |  | open-collector  | 24  | SN74159
74x160  | 1  | synchronous presettable 4-bit decade counter, asynchronous clear  |  |  | 16  | SN74160
74x161  | 1  | synchronous presettable 4-bit binary counter, asynchronous clear  |  |  | 16  | SN74161
74x162  | 1  | synchronous presettable 4-bit decade counter, synchronous clear  |  |  | 16  | SN74162
74x163  | 1  | synchronous presettable 4-bit binary counter, synchronous clear  |  |  | 16  | SN74163
74x164  | 1  | 8-bit serial-in parallel-out (SIPO) shift register, asynchronous clear, not output latch  |  |  | 14  | SN74164
74x165  | 1  | 8-bit parallel-in serial-out (PISO) shift register, parallel load, complementary outputs  |  |  | 16  | SN74165
74x166  | 1  | parallel-load 8-bit shift register  |  |  | 16  | SN74166
74x167  | 1  | synchronous decade rate multiplier  |  |  | 16  | SN74167
74x168  | 1  | synchronous presettable 4-bit up/down decade counter  |  |  | 16  | DM74LS168
74x169  | 1  | synchronous presettable 4-bit up/down binary counter  |  |  | 16  | SN74LS169B
74x170  | 1  | 16-bit register file (4x4)  |  | open-collector  | 16  | SN74170
74x171  | 4  | quad D flip-flops, clear  |  |  | 16  | SN74LS171
74x172  | 1  | 16-bit multiple port register file (8x2)  |  | three-state | 24  | SN74172
74x173  | 4  | quad D flip-flop, asynchronous clear  |  | three-state | 16  | SN74173
74x174  | 6  | hex D flip-flop, common asynchronous clear  |  |  | 16  | SN74174
74x175  | 4  | quad D edge-triggered flip-flop, complementary outputs and asynchronous clear  |  |  | 16  | SN74175
74x176  | 1  | presettable decade (bi-quinary) counter/latch  |  |  | 14  | SN74176
74x177  | 1  | presettable binary counter/latch  |  |  | 14  | SN74177
74x178  | 1  | 4-bit parallel-access shift register  |  |  | 14  | SN74178
74x179  | 1  | 4-bit parallel-access shift register, asynchronous clear input, complementary Qd output  |  |  | 16  | SN74179
74x180  | 1  | 9-bit odd/even parity bit generator and checker  |  |  | 14  | SN74180
74x181 | 1  | 4-bit arithmetic logic unit and function generator  |  |  | 24  | SN74LS181
74x182  | 1  | lookahead carry generator  |  |  | 16  | SN74S182
74x183  | 2  | dual carry-save full adder  |  |  | 14  | SN74LS183
74x184  | 1  | BCD to binary converter  |  | open-collector  | 16  | SN74184
74x185  | 1  | 6-bit binary to BCD converter  |  | open-collector  | 16  | SN74185A
74x186  | 1  | 512-bit ROM (64x8)  |  | open-collector  | 24  | SN74186
74x187  | 1  | 1024-bit ROM (256x4)  |  | open-collector  | 16  | SN74187
74x188  | 1  | 256-bit PROM (32x8)  |  | open-collector  | 16  | SN74S188
74x189  | 1  | 64-bit RAM (16x4), 4 data inputs, 4 inverted data outputs  |  | three-state | 16  | SN74S189
74x190  | 1  | synchronous presettable up/down 4-bit decade counter  |  |  | 16  | SN74190
74x191  | 1  | synchronous presettable up/down 4-bit binary counter  |  |  | 16  | SN74191
74x192  | 1  | synchronous presettable up/down 4-bit decade counter, clear  |  |  | 16  | SN74192
74x193  | 1  | synchronous presettable up/down 4-bit binary counter, clear  |  |  | 16  | SN74193
74x194  | 1  | 4-bit bidirectional universal shift register  |  |  | 16  | SN74194
74x195  | 1  | 4-bit parallel-access shift register  |  |  | 16  | SN74195
74x196  | 1  | presettable 4-bit decade counter/latch  |  |  | 14  | SN74196
74x197  | 1  | presettable 4-bit binary counter/latch  |  |  | 14  | SN74197
74x198  | 1  | 8-bit bidirectional universal shift register  |  |  | 24  | SN74198
74x199  | 1  | 8-bit universal shift register, J-NotK serial inputs  |  |  | 24  | SN74199

### 74x200 – 74x299

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x200  | 1  | 256-bit RAM (256x1)  |  | three-state | 16  | DM74S200
74x201  | 1  | 256-bit RAM (256x1)  |  | three-state | 16  | SN74S201
74x202  | 1  | 256-bit RAM (256x1) with power down  |  | three-state | 16  | SN74LS202
74x206  | 1  | 256-bit RAM (256x1)  |  | open-collector  | 16  | DM74S206
74x207  | 1  | 1024-bit RAM (256x4)  |  | three-state | 16  | SN74LS207
74x208  | 1  | 1024-bit RAM (256x4), separate data in- and outputs  |  | three-state | 20  | SN74LS208
74x209  | 1  | 1024-bit RAM (1024x1)  |  | three-state | 16  | SN74S209
74x210  | 8  | octal buffer, inverting  |  | three-state | 20  | SN74LS210
74x211  | 1  | 144-bit RAM (16x9) with output latch  |  | three-state | 20  | 74F211
74x212  | 1  | 144-bit RAM (16x9)  |  | three-state | 20  | 74F212
74x213  | 1  | 192-bit RAM (16x12)  |  | three-state | 20  | 74F213
74x214  | 1  | 1024-bit RAM (1024x1)  |  | three-state | 16  | SN74LS214
74x215  | 1  | 1024-bit RAM (1024x1) with power-down mode  |  | three-state | 16  | SN74LS215
74x216  | 1  | 256-bit RAM (64x4), common I/O  |  | three-state | 16  | SN74LS216
74x217  | 1  | 256-bit RAM (64x4)  |  | three-state | 20  | SN74ALS217
74x218  | 1  | 256-bit RAM (32x8)  |  | three-state | 20  | SN74ALS218
74x219  | 1  | 64-bit RAM (16x4), non-inverting outputs  |  | three-state | 16  | SN74LS219
74x221  | 2  | dual monostable multivibrator  | Schmitt trigger  |  | 16  | SN74221
74x222  | 1  | 64-bit FIFO memory (16x4), synchronous, input/output ready enable  |  | three-state | 20  | SN74LS222
74x224  | 1  | 64-bit FIFO memory (16x4), synchronous  |  | three-state | 16  | SN74LS224
74x225  | 1  | 80-bit FIFO memory (16x5), asynchronous  |  | three-state | 20  | SN74S225
74x226  | 1  | 4-bit parallel latched bus transceiver  |  | three-state | 16  | SN74S226
74x227  | 1  | 64-bit FIFO memory (16x4), synchronous, input/output ready enable  |  | open-collector  | 20  | SN74LS727
74x228  | 1  | 64-bit FIFO memory (16x4), synchronous  |  | open-collector  | 20  | SN74LS728
74x229  | 1  | 80-bit FIFO memory (16x5), asynchronous  |  | three-state | 20  | SN74ALS229B
74x230  | 2  | dual 4-bit buffer/driver, one inverted, one non-inverted; negative enable  |  | three-state | 20  | SN74AS230
74x231  | 2  | dual 4-bit buffer/driver, both inverted; one positive and one negative enable  |  | three-state | 20  | SN74AS231
74x232  | 1  | 64-bit FIFO memory (16x4), asynchronous  |  | three-state | 16  | SN74ALS232B
74x233  | 1  | 80-bit FIFO memory (16x5), asynchronous  |  | three-state | 20  | SN74ALS233B
74x234  | 1  | 256-bit FIFO memory (64x4), asynchronous  |  | three-state | 16  | SN74ALS234
74x235  | 1  | 320-bit FIFO memory (64x5), asynchronous  |  | three-state | 20  | SN74ALS235
74x236  | 1  | 256-bit FIFO memory (64x4), asynchronous  |  | three-state | 16  | SN74ALS236
74x237  | 1  | 3-to-8 line decoder/demultiplexer, address latch, active high outputs  |  |  | 16  | CD74HC237
74x238  | 1  | 3-to-8 line decoder/demultiplexer, active high outputs  |  |  | 16  | CD74HC238
74x239  | 2  | dual 2-to-4 line decoder/demultiplexer, active high outputs  |  |  | 16  | SN74HC239
74x240  | 8  | octal buffer, inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74LS240
74x241  | 8  | octal buffer, non-inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74LS241
74x242  | 4  | quad bus transceiver, inverting outputs  | Schmitt trigger  | three-state  | 14  | SN74LS242
74x243  | 4  | quad bus transceiver, non-inverting outputs  | Schmitt trigger  | three-state  | 14  | SN74LS243
74x244  | 8  | octal buffer, non-inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74LS244
74x245  | 8  | octal bus transceiver, non-inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74LS245
74x246  | 1  | BCD to 7-segment decoder/driver  |  | open-collector 30 V  | 16  | SN74246
74x247  | 1  | BCD to 7-segment decoder/driver  |  | open-collector 15 V  | 16  | SN74247
74x248  | 1  | BCD to 7-segment decoder/driver  |  | open-collector, 2 kΩ pull-up  | 16  | SN74248
74x249  | 1  | BCD to 7-segment decoder/driver  |  | open-collector  | 16  | SN74249
74x250  | 1  | 1 of 16 data selector/multiplexer  |  | three-state  | 24  | SN74AS250
74x251  | 1  | 8-line to 1-line data selector/multiplexer, complementary outputs  |  | three-state  | 16  | SN74251
74x253  | 2  | dual 4-line to 1-line data selector/multiplexer  |  | three-state  | 16  | SN74LS253
74x255  | 2  | dual 2-to-4 line decoder/demultiplexer, inverting outputs  |  | three-state  | 16  | 74LS255
74x256  | 2  | dual 4-bit addressable latch  |  |  | 16  | MC74F256
74x257  | 4  | quad 2-line to 1-line data selector/multiplexer, non-inverting outputs  |  | three-state  | 16  | SN74LS257B
74x258  | 4  | quad 2-line to 1-line data selector/multiplexer, inverting outputs  |  | three-state  | 16  | SN74LS258B
74x259  | 1  | 8-bit bit addressable input latch with clr  |  |  | 16  | SN74259
74x260  | 2  | dual 5-input NOR gate  |  |  | 14  | SN74LS260
74x261  | 1  | 2-bit by 4-bit parallel binary multiplier  |  |  | 16  | SN74LS261
74x262  | 1  | 5760-bit ROM (Teletext character set, 128 characters 5x9)  |  | three-state  | 20  | SN74S262N
74x264  | 1  | look ahead carry generator  |  |  | 16  | SN74AS264
74x265  | 4  | quad complementary output elements  |  |  | 16  | SN74265
74x266  | 4  | quad 2-input XNOR gate |  | open-collector  | 14  | SN74LS266
74x268  | 6  | hex D-type latches, common output control, common enable  |  | three-state  | 16  | SN74S268
74x269  | 1  | 8-bit bidirectional binary counter  |  |  | 24  | MC74F269
74x270  | 1  | 2048-bit ROM (512x4)  |  | open-collector  | 16  | SN74S270
74x271  | 1  | 2048-bit ROM (256x8)  |  | open-collector  | 20  | SN74S271
74x273  | 1  | 8-bit register, asynchronous clear  |  |  | 20  | SN74273
74x274  | 1  | 4-bit by 4-bit binary multiplier  |  | three-state  | 20  | SN74S274
74x275  | 1  | 7-bit slice Wallace tree |  | three-state  | 16  | SN74S275
74x276  | 4  | quad J-NotK edge-triggered flip-flops, separate clocks, common preset and clear  |  |  | 20  | SN74276
74x278  | 1  | 4-bit cascadeable priority registers, latched data inputs  |  |  | 14  | SN74278
74x279  | 4  | quad set-reset latch  |  |  | 16  | SN74279
74x280  | 1  | 9-bit odd/even parity bit generator/checker  |  |  | 14  | SN74LS280
74x281  | 1  | 4-bit parallel binary accumulator  |  |  | 24  | SN74S281
74x282  | 1  | look-ahead carry generator, selectable carry inputs  |  |  | 20  | SN74AS282
74x283  | 1  | 4-bit binary full adder (has carry in function)  |  |  | 16  | SN74283
74x284  | 1  | 4-bit by 4-bit parallel binary multiplier (high order 4 bits of product)  |  |  | 16  | SN74284
74x285  | 1  | 4-bit by 4-bit parallel binary multiplier (low order 4 bits of product)  |  |  | 16  | SN74285
74x286  | 1  | 9-bit parity generator/checker, bus driver parity I/O port  |  |  | 14  | SN74AS286
74x287  | 1  | 1024-bit PROM (256x4)  |  | three-state  | 16  | SN74S287
74x288  | 1  | 256-bit PROM (32x8)  |  | three-state  | 16  | SN74S288
74x289  | 1  | 64-bit RAM (16x4), 4 data inputs, 4 inverted data outputs  |  | open-collector  | 16  | SN74S289
74x290  | 1  | decade counter (separate divide-by-2 and divide-by-5 sections)  |  |  | 14  | SN74290
74x292  | 1  | programmable frequency divider/digital timer  |  |  | 16  | SN74LS292
74x293  | 1  | 4-bit binary counter (separate divide-by-2 and divide-by-8 sections)  |  |  | 14  | SN74293
74x294  | 1  | programmable frequency divider/digital timer  |  |  | 16  | SN74LS294
74x295  | 1  | 4-bit bidirectional shift register  |  | three-state  | 14  | SN74LS295B
74x297  | 1  | digital phase-locked loop filter  |  |  | 16  | SN74LS297
74x298  | 4  | quad 2-input multiplexer, storage  |  |  | 16  | SN74298
74x299  | 1  | 8-bit bidirectional universal shift/storage register  |  | three-state  | 20  | SN74LS299

### 74x300 – 74x399

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x300  | 1  | 256-bit RAM (256x1)  |  | open-collector  | 16  | SN74LS300A
74x301  | 1  | 256-bit RAM (256x1)  |  | open-collector  | 16  | SN74S301
74x302  | 1  | 256-bit RAM (256x1)  |  | open-collector  | 16  | SN74LS302
74x303  | 1  | octal divide-by-2 clock driver, 2 outputs inverted  |  |  | 16  | SN74AS303
74x304  | 1  | octal divide-by-2 clock driver  |  |  | 16  | SN74AS304
74x305  | 1  | octal divide-by-2 clock driver, 4 outputs inverted  |  |  | 16  | SN74AS305
74x306  | 1  | 8-bit LV-TTL to GTL+ bus transceiver  |  | three-state and open-collector  | (24)  | SN74GTLPH306
74x309  | 1  | 1024-bit RAM (1024x1)  |  | open-collector  | 16  | SN74S309
74x310  | 8  | octal buffer, inverting  | Schmitt trigger  | three-state  | 20  | SN74LS310
74x311  | 1  | 144-bit RAM (16x9) with output latch  |  | open-collector  | 20  | 74F311
74x312  | 1  | 144-bit RAM (16x9)  |  | open-collector  | 20  | 74F312
74x313  | 1  | 192-bit RAM (16x12)  |  | open-collector  | 20  | 74F313
74x314  | 1  | 1024-bit RAM (1024x1)  |  | open-collector  | 16  | SN74LS314
74x315  | 1  | 1024-bit RAM (1024x1) with power-down mode  |  | open-collector  | 16  | SN74LS315
74x316  | 1  | 256-bit RAM (64x4), common I/O  |  | open-collector  | 16  | SN74LS316
74x317  | 1  | 256-bit RAM (64x4)  |  | open-collector  | 20  | SN74ALS317
74x318  | 1  | 256-bit RAM (32x8)  |  | open-collector  | 20  | SN74ALS318
74x319  | 1  | 64-bit RAM (16x4)  |  | open-collector  | 16  | SN74LS319
74x320  | 1  | crystal-controlled oscillator |  |  | 16  | SN74LS320
74x321  | 1  | crystal-controlled oscillators, F/2 and F/4 count-down outputs  |  |  | 16  | SN74LS320
74x322  | 1  | 8-bit shift register, sign extend  |  | three-state  | 20  | SN74LS322A
74x323  | 1  | 8-bit bidirectional universal shift/storage register, synchronous clear  |  | three-state  | 20  | SN74LS323
74x324  | 1  | voltage-controlled oscillator (or crystal controlled), enable input, complementary outputs  | analog  |  | 14  | SN74LS324
74x325  | 2  | dual voltage-controlled oscillator (or crystal controlled), complementary outputs  | analog  |  | 16  | SN74LS325
74x326  | 2  | dual voltage-controlled oscillator (or crystal controlled), enable input, complementary outputs  | analog  |  | 16  | SN74LS326
74x327  | 2  | dual voltage-controlled oscillator (or crystal controlled)  | analog  |  | 14  | SN74LS327
74x330  | 1  | PLA (12 inputs, 50 terms, 6 outputs)  |  | three-state  | 20  | SN74S330
74x331  | 1  | PLA (12 inputs, 50 terms, 6 outputs)  |  | open-collector, 2.5 kΩ pull-up  | 20  | SN74S331
74x333  | 1  | PLA (12 inputs, 32 terms, 6 outputs, 4 state registers)  |  | three-state  | 24  | SN74LS333
74x334  | 1  | PLA (12 inputs, 32 terms, 6 outputs)  |  | three-state  | 24  | SN74LS334
74x335  | 1  | PLA (12 inputs, 32 terms, 6 outputs, 4 state registers)  |  | open-collector  | 24  | SN74LS335
74x336  | 1  | PLA (12 inputs, 32 terms, 6 outputs)  |  | open-collector  | 24  | SN74LS336
74x337  | 1  | clock driver  |  | three-state  | 20  | SN74ABT337
74x340  | 8  | octal buffer, inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74S340
74x341  | 8  | octal buffer, non-inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74S341
74x344  | 8  | octal buffer, non-inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74S344
74x347  | 1  | BCD to 7-segment decoders/drivers, low voltage version of 7447  |  | open-collector  | 16  | SN74LS347
74x348  | 1  | 8 to 3-line priority encoder  |  | three-state  | 16  | SN74LS348
74x350  | 1  | 4-bit shifter  |  | three-state  | 16  | SN74S350
74x351  | 2  | dual 8-line to 1-line data selectors/multiplexers, 4 common data inputs  |  | three-state  | 20  | SN74351
74x352  | 2  | dual 4-line to 1-line data selectors/multiplexers, inverting outputs  |  |  | 16  | SN74LS352
74x353  | 2  | dual 4-line to 1-line data selectors/multiplexers, inverting outputs  |  | three-state  | 16  | SN74LS353
74x354  | 1  | 8-line to 1-line data selector/multiplexer, transparent registers  |  | three-state  | 20  | CD74HC354
74x355  | 1  | 8-line to 1-line data selector/multiplexer, transparent registers  |  | open-collector  | 20  | SN74LS355
74x356  | 1  | 8-line to 1-line data selector/multiplexer, edge-triggered registers  |  | three-state  | 20  | CD74HCT356
74x357  | 1  | 8-line to 1-line data selector/multiplexer, edge-triggered registers  |  | open-collector  | 20  | SN74LS357
74x361  | 1  | bubble memory function timing generator  |  |  | 22  | SN74LS361
74x362  | 1  | four-phase clock generator/driver for Texas Instruments TMS9900 |  |  | 20  | SN74LS362
74x363  | 1  | octal transparent latch  |  | three-state  | 20  | SN74LS363
74x364  | 1  | octal edge-triggered D-type register  |  | three-state  | 20  | SN74LS364
74x365  | 6  | hex buffer, non-inverting outputs  |  | three-state  | 16  | SN74LS365A
74x366  | 6  | hex buffer, inverting outputs  |  | three-state  | 16  | SN74HC366
74x367  | 6  | hex buffer, non-inverting outputs  |  | three-state  | 16  | SN74LS367A
74x368  | 6  | hex buffer, inverting outputs  |  | three-state  | 16  | SN74LS368A
74x370  | 1  | 2048-bit ROM (512x4)  |  | three-state  | 16  | SN74S370
74x371  | 1  | 2048-bit ROM (256x8)  |  | three-state  | 20  | SN74S371
74x373  | 8  | octal transparent latch  |  | three-state  | 20  | SN74LS373
74x374  | 8  | octal register  |  | three-state  | 20  | SN74LS374
74x375  | 4  | quad bistable latch  |  |  | 16  | SN74LS375
74x376  | 4  | quad J-NotK flip-flop, common clock and common clear  |  |  | 16  | SN74376
74x377  | 1  | 8-bit register, clock enable  |  |  | 20  | SN74LS377
74x378  | 1  | 6-bit register, clock enable  |  |  | 16  | SN74LS378
74x379  | 1  | 4-bit register, clock enable and complementary outputs  |  |  | 16  | SN74LS379
74x380  | 1  | 8-bit multifunction register (combines features of x374, x377, x273, x534 ICs)  |  | three-state  | 24  | SN74LS380
74x381  | 1  | 4-bit arithmetic logic unit/function generator, generate and propagate outputs  |  |  | 20  | SN74LS381A
74x382  | 1  | 4-bit arithmetic logic unit/function generator, ripple carry and overflow outputs  |  |  | 20  | SN74LS382
74x383  | 1  | 8-bit register  |  | open-collector  | 20  | SN74S383
74x384  | 1  | 8-bit by 1-bit two's complement multipliers  |  |  | 16  | SN74LS384
74x385  | 4  | quad serial adder/subtractor  |  |  | 20  | SN74LS385
74x386  | 4  | quad 2-input XOR gate |  |  | 14  | SN74LS386
74x387  | 1  | 1024-bit PROM (256x4)  |  | open-collector  | 16  | SN74S387
74x388  | 1  | 4-bit D-type register  |  | three-state and standard  | 16  | Am74S388
74x390  | 2  | dual 4-bit decade counter, asynchronous clear  |  |  | 16  | SN74LS390
74x393  | 2  | dual 4-bit binary counter, asynchronous clear  |  |  | 14  | SN74LS393
74x395  | 1  | 4-bit cascadable shift register  |  | three-state  | 16  | SN74LS395A
74x396  | 8  | octal storage registers, parallel access  |  |  | 16  | SN74LS396
74x398  | 4  | quad 2-input multiplexers, storage and complementary outputs  |  |  | 20  | SN74LS398
74x399  | 4  | quad 2-input multiplexer, storage  |  |  | 16  | SN74LS399

### 74x400 – 74x499

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x401  | 1  | CRC generator/checker  |  |  | 14  | 74F401
74x402  | 1  | serial data polynomial generator/checker  |  |  | 16  | 74F402
74x403  | 1  | 64-bit FIFO memory (16x4)  |  | three-state  | 24  | 74F403
74x405  | 1  | 3-to-8 line decoder (equivalent to Intel 8205)  |  |  | 16  | UCY74S405
74406  | 1  | 3-to-8 line decoder  | ? | ? | 14  | MC74406P
74AVCA406  | 1  | ESD-protected voltage-translation transceiver  |  |  | (48)  | SN74AVCA406
74x407  | 1  | data access register  |  | three-state  | 24  | 74F407
74408  | 1  | 8-bit parity tree  |  |  | 14  | MC74408
74S408  | 1  | controller/driver for 16k/64k/256k dRAM  |  |  | 48  | SN74S408
74x409  | 1  | controller/driver for 16k/64k/256k dRAM  |  |  | 48  | SN74S409
74x410  | 1  | 64-bit RAM (16x4) with output register  |  | three-state  | 18  | 74F410
74x411  | 1  | FIFO RAM controller  |  |  | 40  | 74F411
74x412  | 1  | multi-mode buffered 8-bit latches (equivalent to Intel 3212/8212)  |  | three-state  | 24  | SN74S412
74x413  | 1  | 256-bit FIFO memory (64x4)  |  |  | 16  | 74F413
74x414  | 1  | interrupt priority controller for Intel 8080 (equivalent to Intel 8214)  |  |  | 24  | UCY74S414
74416  | 1  | modulo 10 counter, preload and clear inputs  |  |  | 16  | MC74416[8]:50
74S416  | 1  | 4-bit bidirectional bus transceiver, non-inverting (equivalent to Intel 8216)  |  | three-state  | 16  | UCY74S416
74x417  | 2  | modulo 2 and modulo 5 counters, common preload and clear inputs  |  |  | 16  | MC74417
74418  | 1  | modulo 16 counter, preload and clear inputs  |  |  | 16  | MC74418[8]:51
74F418  | 1  | 32-bit error detection and correction circuit  |  | three-state  | 48  | 74F418
74419  | 2  | dual modulo 4 counters, common preload and clear inputs  |  |  | 16  | MC74419
74S419  | 1  | FIFO RAM controller  |  |  | 40  | 74S419
74x420  | 1  | 32-bit check bit / syndrome bit generator  |  | three-state  | 48  | 74F420
74x422  | 1  | retriggerable monostable multivibrators, two inputs  |  |  | 14  | SN74LS422
74x423  | 2  | dual retriggerable monostable multivibrator  |  |  | 16  | SN74LS423
74424  | 2  | dual voltage-controlled oscillator  |  |  | 14  | MC74424[8]:52
74LS424  | 1  | two-phase clock generator/driver for Intel 8080 (equivalent to Intel 8224)  |  |  | 16  | SN74LS424
74x425  | 4  | quad bus buffers, active low enables  |  | three-state  | 14  | SN74425
74x426  | 4  | quad bus buffers, active high enables  |  | three-state  | 14  | SN74426
74x428  | 1  | system controller for Intel 8080A (equivalent to Intel 8228)  |  |  | 28  | SN74S428
74x429  | 1  | FIFO RAM controller  |  | three-state  | 28  | 74LS429
74x430  | 1  | cyclic redundancy checker/corrector  |  |  | 28  | 74F430
74x432  | 1  | 8-bit multi-mode buffered latch  |  | three-state  | 24  | 74F432
74x433  | 1  | 256-bit FIFO memory (64x4)  |  | three-state  | 24  | 74F433
74x436  | 1  | line driver/memory driver circuits - MOS memory interface, damping output resistor  |  |  | 16  | SN74S436
74x437  | 1  | line driver/memory driver circuits - MOS memory interface  |  |  | 16  | SN74S437
74x438  | 1  | system controller for Intel 8080A (equivalent to Intel 8238)  |  |  | 28  | SN74S438
74x440  | 4  | quad tridirectional bus transceiver, non-inverting outputs  |  | open-collector  | 20  | SN74LS440
74x441  | 4  | quad tridirectional bus transceiver, inverting outputs  |  | open-collector  | 20  | SN74LS441
74x442  | 4  | quad tridirectional bus transceiver, non-inverting outputs  |  | three-state  | 20  | SN74LS442
74x443  | 4  | quad tridirectional bus transceiver, inverting outputs  |  | three-state  | 20  | SN74LS443
74x444  | 4  | quad tridirectional bus transceiver, inverting and non-inverting outputs  |  | three-state  | 20  | SN74LS444
74x445  | 1  | BCD to decimal decoders/drivers  |  | driver 80 mA  | 16  | SN74LS445
74x446  | 4  | quad bus transceivers, direction controls, inverting outputs  |  | three-state  | 16  | SN74LS446
74x447  | 1  | BCD to 7-segment decoders/drivers, low voltage version of 74247  |  | open-collector  | 16  | SN74LS447
74x448  | 4  | quad tridirectional bus transceiver, inverting and non-inverting outputs  |  | open-collector  | 20  | SN74LS448
74x449  | 4  | quad bus transceivers, direction controls, non-inverting outputs  |  | three-state  | 16  | SN74LS449
74450  | 1  | counter, latch, 7-segment decoder  | ? | open-collector  | 16  | MC74450
74S450  | 1  | 8192-bit PROM (1024x8) with power-down  |  | three-state  | 24  | SN74S450
74LS450  | 1  | 16-to-1 multiplexer, complementary outputs  |  |  | 24  | SN74LS450
74S451  | 1  | 8192-bit PROM (1024x8) with power-down  |  | open-collector  | 24  | SN74S451
74LS451  | 2  | dual 8-to-1 multiplexer  |  |  | 24  | SN74LS451
74x452  | 2  | dual decade counter, synchronous  | ? | ? | 16  | MC74452
74453  | 2  | dual binary counter, synchronous  | ? | ? | 16  | MC74453
74LS453  | 4  | quad 4-to-1 multiplexer  |  |  | 24  | SN74LS453
74x454  | 2  | dual decade up/down counter, synchronous, preset input  | ? | ? | 24  | MC74454
74455  | 2  | dual binary up/down counter, synchronous, preset input  | ? | ? | 24  | MC74455
74F455  | 1  | octal buffer / line driver with parity, inverting  |  | three-state  | 24  | 74F455
74456  | 1  | 4-bit NBCD full adder  | ? | ? | 16  | MC74456
74F456  | 1  | octal buffer / line driver with parity, non-inverting  |  | three-state  | 24  | 74F456
74x458  | 1  | nines complement / zero element  | ? | ? | 14  | MC74458
74460  | 1  | 4-bit bus transfer switch  | ? | three-state  | 16  | MC74460
74LS460  | 1  | 10-bit comparator  |  |  | 24  | SN74LS460
74x461  | 1  | 8-bit presettable binary counter  |  | three-state  | 24  | SN74LS461
74x462  | 1  | fiber-optic data-link transmitter  |  | open-collector 100 mA and standard  | 20  | SN74LS462
74x463  | 1  | fiber-optic data-link receiver  | analog  |  | 20  | SN74LS463
74x465  | 8  | octal buffer, non-inverting outputs  |  | three-state  | 20  | SN74LS465
74x466  | 8  | octal buffers, inverting outputs  |  | three-state  | 20  | SN74LS466
74x467  | 8  | octal buffers, non-inverting outputs  |  | three-state  | 20  | SN74LS467
74x468  | 8  | octal buffers, inverting outputs  |  | three-state  | 20  | SN74LS468
74x469  | 1  | 8-bit synchronous up/down counter, parallel load and hold capability  |  | three-state  | 24  | SN74LS469
74x470  | 1  | 2048-bit PROM (256x8)  |  | open-collector  | 20  | SN74S470
74x471  | 1  | 2048-bit PROM (256x8)  |  | three-state  | 20  | SN74S471
74x472  | 1  | 4096-bit PROM (512x8)  |  | three-state  | 20  | SN74S472
74x473  | 1  | 4096-bit PROM (512x8)  |  | open-collector  | 20  | SN74S473
74x474  | 1  | 4096-bit PROM (512x8)  |  | three-state  | 24  | SN74S474
74x475  | 1  | 4096-bit PROM (512x8)  |  | open-collector  | 24  | SN74S475
74x476  | 1  | 4096-bit PROM (1024x4)  |  | three-state  | 18  | SN74S476
74x477  | 1  | 4096-bit PROM (1024x4)  |  | open-collector  | 18  | SN74S477
74x478  | 1  | 8192-bit PROM (1024x8)  |  | three-state  | 24  | SN74S478
74x479  | 1  | 8192-bit PROM (1024x8)  |  | open-collector  | 24  | SN74S479
74x480  | 1  | single burst error recovery circuit  |  |  | 24  | SN74S480
74x481  | 1  | 4-bit slice cascadable processor elements  |  |  | (48)  | SN74S481
74x482  | 1  | 4-bit slice expandable control elements  |  |  | 20  | SN74S482
74x484  | 1  | BCD-to-binary converter  |  | three-state  | 20  | SN74S484A
74x485  | 1  | binary-to-BCD converter  |  | three-state  | 20  | SN74S485A
74x488  | 1  | IEEE-488 bus interface  |  |  | 48  | 74ACT488
74x490  | 2  | dual decade counter  |  |  | 16  | SN74490
74x491  | 1  | 10-bit binary up/down counter, limited preset  |  | three-state  | 24  | SN74LS491
74x498  | 1  | 8-bit bidirectional shift register, parallel inputs  |  | three-state  | 24  | SN74LS498

### 74x500 – 74x599

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x500  | 1  | 6-bit flash analog-to-digital converter (ADC)  | analog  |  | 24  | 74F500
74x502  | 1  | 8-bit successive approximation register  |  |  | 16  | 74LS502
74x503  | 1  | 8-bit successive approximation register with expansion control  |  |  | 16  | 74LS503
74x504  | 1  | 12-bit successive approximation register with expansion control  |  |  | 24  | 74LS504
74x505  | 1  | 8-bit successive approximation ADC | analog  | three-state  | 24  | 74F505
74x508  | 1  | 8-bit multiplier/divider  |  |  | 24  | SN74S508
74x515  | 1  | programmable mapping decoder (2-to-4 line decoder with 9 programmable enable inputs)  |  |  | 20  | 74HCT515[9]:310
74x516  | 1  | 16-bit multiplier/divider  |  |  | 24  | SN74S516
74x518  | 1  | 8-bit comparator  | 20 kΩ pull-up  | open-collector  | 20  | SN74ALS518
74x519  | 1  | 8-bit comparator  |  | open-collector  | 20  | SN74ALS519
74x520  | 1  | 8-bit comparator, inverting output  | 20 kΩ pull-up  |  | 20  | SN74ALS520
74x521  | 1  | 8-bit comparator, inverting output  |  |  | 20  | SN74ALS521
74x522  | 1  | 8-bit comparator, inverting output  | 20 kΩ pull-up  | open-collector  | 20  | SN74ALS522
74x524  | 1  | 8-bit registered comparator  |  | open-collector  | 20  | 74F524
74x525  | 1  | 16-bit programmable counter  |  |  | 28  | 74F525
74x526  | 1  | fuse programmable identity comparator, 16-bit  |  |  | 20  | SN74ALS526
74x527  | 1  | fuse programmable identity comparator, 8-bit + 4-bit conventional Identity comparator  |  |  | 20  | SN74ALS527
74x528  | 1  | fuse programmable Identity comparator, 12-bit  |  |  | 16  | SN74ALS528
74x531  | 8  | octal transparent latch  |  | three-state  | 20  | SN74S531
74x532  | 8  | octal register  |  | three-state  | 20  | SN74S532
74x533  | 1  | octal transparent latch, inverting outputs  |  | three-state  | 20  | CD74HC533
74x534  | 1  | octal register, inverting outputs  |  | three-state  | 20  | CD74HC534
74x535  | 1  | octal transparent latch, inverting outputs  |  | three-state  | 20  | SN74S535
74x536  | 1  | octal register, inverting outputs  |  | three-state  | 20  | SN74S536
74x537  | 1  | BCD to decimal decoder  |  | three-state  | 20  | MC74F537
74x538  | 1  | 3-to-8 line decoder/demultiplexer  |  | three-state  | 20  | SN74ALS538
74x539  | 2  | dual 2-to-4 line decoder/demultiplexer  |  | three-state  | 20  | SN74ALS539
74x540  | 1  | octal buffer, inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74LS540
74x541  | 1  | octal buffer, non-inverting outputs  | Schmitt trigger  | three-state  | 20  | SN74LS541
74x543  | 1  | octal registered transceiver, non-inverting  |  | three-state  | 24  | SN74F543
74x544  | 1  | octal registered transceiver, inverting  |  | three-state  | 24  | MC74F544
74x545  | 1  | octal bidirectional transceiver, non-inverting  |  | three-state  | 20  | 74F545
74x546  | 1  | 8-bit bidirectional registered transceiver, non-inverting  |  | three-state  | 24  | SN74LS546
74LS547  | 1  | 8-bit bidirectional latched transceiver, non-inverting  |  | three-state  | 24  | SN74LS547
74F547  | 1  | 3-to-8 line decoder/demultiplexer with address latches and acknowledge output  |  |  | 20  | 74F547
74LS548  | 1  | 8-bit two-stage pipelined register  |  | three-state  | 24  | SN74LS548
74F548  | 1  | 3-to-8 line decoder/demultiplexer with acknowledge output  |  |  | 20  | 74F548
74x549  | 1  | 8-bit two-stage pipelined latch  |  | three-state  | 24  | SN74LS549
74x550  | 1  | octal registered transceiver with status flags, non-inverting  |  | three-state  | 28  | 74F550
74x551  | 1  | octal registered transceiver with status flags, inverting  |  | three-state  | 28  | 74F551
74x552  | 1  | octal registered transceiver with parity and flags  |  | three-state  | 28  | 74F552
74x556  | 1  | 16x16-bit multiplier slice  |  | three-state  | (84)  | 74S556
74x557  | 1  | 8-bit by 8-bit multiplier  |  | three-state  | 40  | SN74S557
74x558  | 1  | 8-bit by 8-bit multiplier  |  | three-state  | 40  | SN74S558
74x559  | 1  | 8-bit expandable two's complement multiplier/divider  |  | three-state  | 24  | 74F559
74x560  | 1  | 4-bit decade counter  |  | three-state  | 20  | SN74ALS560A
74x561  | 1  | 4-bit binary counter  |  | three-state  | 20  | SN74ALS561A
74x563  | 1  | 8-bit D-type transparent latch, inverting outputs  |  | three-state  | 20  | SN74ALS563B
74x564  | 1  | 8-bit D-type edge-triggered register, inverting outputs  |  | three-state  | 20  | SN74ALS564B
74x566  | 1  | 8-bit bidirectional registered transceiver, inverting  |  | three-state  | 24  | SN74LS566
74x567  | 1  | 8-bit bidirectional latched transceiver, inverting  |  | three-state  | 24  | SN74LS567
74x568  | 1  | decade up/down counter  |  | three-state  | 20  | SN74ALS568A
74x569  | 1  | binary up/down counter  |  | three-state  | 20  | SN74ALS569A
74x570  | 1  | 2048-bit PROM (512x4)  |  | open-collector  | 16  | DM74S570
74x571  | 1  | 2048-bit PROM (512x4)  |  | three-state  | 16  | DM74S571
74x572  | 1  | 4096-bit PROM (1024x4)  |  | open-collector  | 18  | DM74S572
74x573  | 1  | octal D-type transparent latch  |  | three-state  | 20  | SN74ALS573C
74x574  | 1  | octal D-type edge-triggered flip-flop  |  | three-state  | 20  | SN74HC574
74x575  | 1  | octal D-type edge-triggered flip-flop, synchronous clear  |  | three-state  | 24  | SN74ALS575A
74x576  | 1  | octal D-type edge-triggered flip-flop, inverting outputs  |  | three-state  | 20  | SN74ALS576B
74x577  | 1  | octal D-type edge-triggered flip-flop, synchronous clear, inverting outputs  |  | three-state  | 24  | SN74ALS577A
74x579  | 1  | 8-bit bidirectional binary counter  |  | three-state  | 20  | MC74F579
74x580  | 1  | octal D-type transparent latch, inverting outputs  |  | three-state  | 20  | SN74ALS580B
74x582  | 1  | 4-bit BCD arithmetic logic unit  |  |  | 24  | 74F582
74x583  | 1  | 4-bit BCD adder  |  |  | 16  | 74F583
74x588  | 1  | octal bidirectional transceiver with IEEE-488 termination resistors  |  | three-state  | 20  | 74F588
74x589  | 1  | 8-bit shift register, input latch  |  | three-state  | 16  | SN74LS589
74x590  | 1  | 8-bit binary counter, output registers  |  | three-state  | 16  | SN74LS590
74x591  | 1  | 8-bit binary counter, output registers  |  | open-collector  | 16  | SN74LS591
74x592  | 1  | 8-bit binary counter, input registers  |  |  | 16  | SN74LS592
74x593  | 1  | 8-bit binary counter, input registers  |  | three-state  | 20  | SN74LS593
74x594  | 1  | 8-bit shift registers, serial-in, parallel-out, output latches  |  | buffered  | 16  | SN74LS594
74x595  | 1  | 8-bit shift registers, serial-in, parallel-out, output latches, output enable  |  | three-state  | 16  | SN74LS595
74x596  | 1  | 8-bit shift registers, serial-in, parallel-out, output latches, output enable  |  | open-collector  | 16  | SN74LS596
74x597  | 1  | 8-bit shift registers, parallel-in, serial-out, input latches  |  |  | 16  | SN74LS597
74x598  | 1  | 8-bit shift register, selectable parallel-in/out input latches  |  | three-state  | 20  | SN74LS598
74x599  | 1  | 8-bit shift registers, serial-in, parallel-out, output latches  |  | open-collector  | 16  | SN74LS599

### 74x600 – 74x699

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x600  | 1  | dynamic memory refresh controller, transparent and burst modes, for 4K or 16K dRAM  |  | three-state  | 20  | SN74LS600A
74x601  | 1  | dynamic memory refresh controller, transparent and burst modes, for 64K dRAM  |  | three-state  | 20  | SN74LS601A
74x602  | 1  | dynamic memory refresh controller, cycle steal and burst modes, for 4K or 16K dRAM  |  | three-state  | 20  | SN74LS602A
74x603  | 1  | dynamic memory refresh controller, cycle steal and burst modes, for 64K dRAM  |  | three-state  | 20  | SN74LS603A
74x604  | 1  | octal 2-input multiplexer, latch, high-speed  |  | three-state  | 28  | SN74LS604
74x605  | 1  | octal 2-input multiplexer, latch, high-speed  |  | open-collector  | 28  | SN74LS605
74x606  | 1  | octal 2-input multiplexer, latch, glitch-free  |  | three-state  | 28  | SN74LS606
74x607  | 1  | octal 2-input multiplexer, latch, glitch-free  |  | open-collector  | 28  | SN74LS607
74x608  | 1  | memory cycle controller  |  |  | 16  | SN74LS608
74x610  | 1  | memory mapper, latched  |  | three-state  | 40  | SN74LS610
74x611  | 1  | memory mapper, latched  |  | open-collector  | 40  | SN74LS611
74x612  | 1  | memory mapper  |  | three-state  | 40  | SN74LS612
74x613  | 1  | memory mapper  |  | open-collector  | 40  | SN74LS613
74x614  | 1  | octal bus transceiver and register, inverting  |  | open-collector  | 24  | SN74ALS614
74x615  | 1  | octal bus transceiver and register, non-inverting  |  | open-collector  | 24  | SN74ALS615
74x616  | 1  | 16-bit parallel error detection and correction  |  | three-state  | 40  | SN74ALS616
74x617  | 1  | 16-bit parallel error detection and correction  |  | open-collector  | 40  | SN74ALS617
74x620  | 1  | octal bus transceiver, inverting  |  | three-state  | 20  | SN74LS620
74x621  | 1  | octal bus transceiver, non-inverting  |  | open-collector  | 20  | SN74LS621
74x622  | 1  | octal bus transceiver, inverting  |  | open-collector  | 20  | SN74LS622
74x623  | 1  | octal bus transceiver, non-inverting  |  | three-state  | 20  | SN74LS623
74x624  | 1  | voltage-controlled oscillator, enable control, range control, two-phase outputs  | analog  |  | 14  | SN74LS624
74x625  | 2  | dual voltage-controlled oscillator, two-phase outputs  | analog  |  | 16  | SN74LS625
74x626  | 2  | dual voltage-controlled oscillator, enable control, two-phase outputs  | analog  |  | 16  | SN74LS626
74x627  | 2  | dual voltage-controlled oscillator | analog  |  | 14  | SN74LS627
74x628  | 1  | voltage-controlled oscillator, enable control, range control,
external temperature compensation, two-phase outputs  | analog  |  | 14  | SN74LS628
74x629  | 2  | dual voltage-controlled oscillator, enable control, range control  | analog  |  | 16  | SN74LS629
74x630  | 1  | 16-bit error detection and correction (EDAC)  |  | three-state  | 28  | SN74LS630
74x631  | 1  | 16-bit error detection and correction  |  | open-collector  | 28  | SN74LS631
74x632  | 1  | 32-bit parallel error detection and correction, byte-write  |  | three-state  | 52  | SN74ALS632
74x633  | 1  | 32-bit parallel error detection and correction, byte-write  |  | open-collector  | 52  | SN74ALS633
74x634  | 1  | 32-bit parallel error detection and correction  |  | three-state  | 48  | SN74ALS634
74x635  | 1  | 32-bit parallel error detection and correction  |  | open-collector  | 48  | SN74ALS635
74x636  | 1  | 8-bit parallel error detection and correction  |  | three-state  | 20  | SN74LS636
74x637  | 1  | 8-bit parallel error detection and correction  |  | open-collector  | 20  | SN74LS637
74x638  | 1  | octal bus transceiver, inverting outputs  |  | three-state and open-collector  | 20  | SN74LS638
74x639  | 1  | octal bus transceiver, non-inverting outputs  |  | three-state and open-collector  | 20  | SN74LS639
74x640  | 1  | octal bus transceiver, inverting outputs  |  | three-state  | 20  | SN74LS640
74x641  | 1  | octal bus transceiver, non-inverting outputs  |  | open-collector  | 20  | SN74LS641
74x642  | 1  | octal bus transceiver, inverting outputs  |  | open-collector  | 20  | SN74LS642
74x643  | 1  | octal bus transceiver, mix of inverting and non-inverting outputs  |  | three-state  | 20  | SN74LS643
74x644  | 1  | octal bus transceiver, mix of inverting and non-inverting outputs  |  | open-collector  | 20  | SN74LS644
74x645  | 1  | octal bus transceiver, non-inverting outputs  |  | three-state  | 20  | SN74LS645
74x646  | 1  | octal bus transceiver/latch/multiplexer, non-inverting outputs  |  | three-state  | 24  | SN74ALS646A
74x647  | 1  | octal bus transceiver/latch/multiplexer, non-inverting outputs  |  | open-collector  | 24  | SN74LS647
74x648  | 1  | octal bus transceiver/latch/multiplexer, inverting outputs  |  | three-state  | 24  | SN74ALS648A
74x649  | 1  | octal bus transceiver/latch/multiplexer, inverting outputs  |  | open-collector  | 24  | SN74LS649
74x651  | 1  | octal bus transceiver/register, inverting outputs  |  | three-state  | 24  | SN74ALS651A
74x652  | 1  | octal bus transceiver/register, non-inverting outputs  |  | three-state  | 24  | SN74ALS652A
74x653  | 1  | octal bus transceiver/register, inverting outputs  |  | three-state and open-collector  | 24  | SN74ALS653
74x654  | 1  | octal bus transceiver/register, non-inverting outputs  |  | three-state and open-collector  | 24  | SN74ALS654
74x655  | 1  | octal buffer / line driver with parity, inverting  |  | three-state  | 24  | 74F655
74x656  | 1  | octal buffer / line driver with parity, non-inverting  |  | three-state  | 24  | 74F656
74x657  | 1  | octal bidirectional transceiver with 8-bit parity generator/checker  |  | three-state  | 24  | SN74F657
74x658  | 1  | octal bus transceiver, parity, inverting  |  | three-state  | 24  | SN74HC658
74x659  | 1  | octal bus transceiver, parity, non-inverting  |  | three-state  | 24  | SN74HC659
74x664  | 1  | octal bus transceiver, parity, inverting  |  | three-state  | 24  | SN74HC664
74x665  | 1  | octal bus transceiver, parity, non-inverting  |  | three-state  | 24  | SN74HC665
74x666  | 1  | 8-bit D-type transparent read-back latch, non-inverting  |  | three-state  | 24  | SN74ALS666
74x667  | 1  | 8-bit D-type transparent read-back latch, inverting  |  | three-state  | 24  | SN74ALS667
74x668  | 1  | synchronous 4-bit decade up/down counter  |  |  | 16  | SN74LS668
74x669  | 1  | synchronous 4-bit binary up/down counter  |  |  | 16  | SN74LS669
74x670  | 1  | 16-bit register file (4x4)  |  | three-state  | 16  | SN74LS670
74x671  | 1  | 4-bit bidirectional shift register/latch/multiplexer, direct clear  |  | three-state  | 20  | SN74LS671
74x672  | 1  | 4-bit bidirectional shift register/latch/multiplexer, synchronous clear  |  | three-state  | 20  | SN74LS672
74x673  | 1  | 16-bit serial-in, serial/parallel-out shift register, output storage registers  |  | three-state  | 24  | SN74LS673
74x674  | 1  | 16-bit parallel-in, serial-out shift register  |  | three-state  | 24  | SN74LS674
74x675  | 1  | 16-bit serial-in, serial/parallel-out shift register  |  |  | 24  | 74F675A
74x676  | 1  | 16-bit serial/parallel-in, serial-out shift register  |  |  | 24  | 74F676
74x677  | 1  | 16-bit address comparator, enable  |  |  | 24  | SN74ALS677
74x678  | 1  | 16-bit address comparator, latch  |  |  | 24  | SN74ALS678
74x679  | 1  | 12-bit address comparator, latch  |  |  | 20  | SN74ALS679
74x680  | 1  | 12-bit address comparator, enable  |  |  | 20  | SN74ALS680
74x681  | 1  | 4-bit parallel binary accumulator  |  | three-state  | 20  | SN74LS681
74x682  | 1  | 8-bit magnitude comparator, P>Q output  | 20 kΩ pull-up  |  | 20  | SN74LS682
74x683  | 1  | 8-bit magnitude comparator, P>Q output  | 20 kΩ pull-up  | open-collector  | 20  | SN74LS683
74x684  | 1  | 8-bit magnitude comparator, P>Q output  |  |  | 20  | SN74LS684
74x685  | 1  | 8-bit magnitude comparator, P>Q output  |  | open-collector  | 20  | SN74LS685
74x686  | 1  | 8-bit magnitude comparator, P>Q output, enable  |  |  | 24  | SN74LS686
74x687  | 1  | 8-bit magnitude comparator, P>Q output, enable  |  | open-collector  | 24  | SN74LS687
74x688  | 1  | 8-bit magnitude comparator, enable  |  |  | 20  | SN74LS688
74x689  | 1  | 8-bit magnitude comparator, enable  |  | open-collector  | 20  | SN74LS689
74x690  | 1  | 4-bit decimal counter/latch/multiplexer, asynchronous clear  |  | three-state  | 20  | SN74LS690
74x691  | 1  | 4-bit binary counter/latch/multiplexer, asynchronous clear  |  | three-state  | 20  | SN74LS691
74x692  | 1  | 4-bit decimal counter/latch/multiplexer, synchronous clear  |  | three-state  | 20  | SN74LS692
74x693  | 1  | 4-bit binary counter/latch/multiplexer, synchronous clear  |  | three-state  | 20  | SN74LS693
74x694  | 1  | 4-bit decimal counter/latch/multiplexer, synchronous and asynchronous clears  |  | three-state  | 20  | SN74ALS694
74x695  | 1  | 4-bit binary counter/latch/multiplexer, synchronous and asynchronous clears  |  | three-state  | 20  | SN74ALS695
74x696  | 1  | 4-bit decimal counter/register/multiplexer, asynchronous clear  |  | three-state  | 20  | SN74LS696
74x697  | 1  | 4-bit binary counter/register/multiplexer, asynchronous clear  |  | three-state  | 20  | SN74LS697
74x698  | 1  | 4-bit decimal counter/register/multiplexer, synchronous clear  |  | three-state  | 20  | SN74LS698
74x699  | 1  | 4-bit binary counter/register/multiplexer, synchronous clear  |  | three-state  | 20  | SN74LS699

### 74x700 – 74x799

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x700  | 1  | octal dRAM driver, inverting  |  | three-state  | 20  | SN74S700
74x701  | 1  | 8-bit register/counter/comparator  |  | three-state  | 24  | 74F701
74x702  | 1  | 8-bit registered read-back transceiver  |  | three-state  | 24  | 74F702
74x705  | 1  | arithmetic logic unit for digital signal processing applications  |  | three-state  | (84)  | 74ACT705
74x707  | 1  | 8-bit TTL-ECL shift register  |  |  | 20  | 74F707
74x708  | 1  | 576-bit FIFO memory (64x9)  |  | three-state  | 28  | 74ACT708
74x710  | 1  | 8-bit single-supply TTL-ECL shift register  |  |  | 20  | 74F710
74x711  | 5  | quint 2-to-1 multiplexers  |  | three-state  | 20  | 74F711
74x712  | 5  | quint 3-to-1 multiplexers  |  |  | 24  | 74F712
74x715  | 1  | programmable video sync generator  |  |  | 20  | 74ACT715
74x716  | 1  | programmable decade counter  |  |  | 16  | SN74LS716
74x718  | 1  | programmable binary counter  |  |  | 16  | SN74LS718
74x723  | 1  | 576-bit FIFO memory (64x9)  |  | three-state  | 28  | 74ACT723
74x724  | 1  | voltage-controlled multivibrator  | analog  |  | 8  | SN74LS724
74x725  | 1  | 4608-bit FIFO memory (512x9)  |  | three-state  | 28  | 74ACT725
74x730  | 1  | octal dRAM driver, inverting  |  | three-state  | 20  | SN74S730
74x731  | 1  | octal dRAM driver, non-inverting  |  | three-state  | 20  | SN74S731
74x732  | 1  | 4-bit 3-bus multiplexer, inverting  |  | three-state  | 20  | 74F732
74x733  | 1  | 4-bit 3-bus multiplexer, non-inverting  |  | three-state  | 20  | 74F733
74x734  | 1  | octal dRAM driver, non-inverting  |  | three-state  | 20  | SN74S734
74x740  | 2  | dual 4-bit line driver, inverting  |  | three-state  | 20  | SN74S740
74x741  | 2  | dual 4-bit line driver, non-inverting, complementary enable inputs  |  | three-state  | 20  | SN74S741
74x742  | 1  | octal line driver, inverting  |  | open-collector  | 20  | SN74ALS742[10](3-122) [11](p25)
74x743  | 1  | octal line driver, non-inverting  |  | open-collector  | 20  | SN74ALS743[10](3-124) [11](p25)
74x744  | 2  | dual 4-bit line driver, non-inverting  |  | three-state  | 20  | SN74S744
74x746  | 1  | octal buffer / line driver, inverting  | 20 kΩ pull-up  | three-state  | 20  | SN74ALS746
74x747  | 1  | octal buffer / line driver, non-inverting  | 20 kΩ pull-up  | three-state  | 20  | SN74ALS747
74x748  | 1  | 8 to 3-line priority encoder (glitch-less)  |  |  | 16  | SN74LS748
74x756  | 1  | octal buffer/line driver, inverting outputs  |  | open-collector  | 20  | SN74AS756
74x757  | 1  | octal buffer/line driver, non-inverting outputs, complementary enable inputs  |  | open-collector  | 20  | SN74AS757
74x758  | 1  | quadruple bus transceivers, inverting outputs  |  | open-collector  | 14  | SN74AS758
74x759  | 1  | quadruple bus transceivers, non-inverting outputs  |  | open-collector  | 14  | SN74AS759
74x760  | 1  | octal buffer/line driver, non-inverting outputs  |  | open-collector  | 20  | SN74ALS760
74x762  | 1  | octal buffer/line driver, inverting and non-inverting outputs  |  | open-collector  | 20  | SN74ALS762
74x763  | 1  | octal buffer/line driver, inverting outputs, complementary enable inputs  |  | open-collector  | 20  | SN74ALS763
74x764  | 1  | dual-port dRAM controller  |  |  | 40  | 74F764
74x765  | 1  | dual-port dRAM controller with address latch  |  |  | 40  | 74F765
74x776  | 1  | 8-bit latched transceiver for FutureBus  |  | three-state and open-collector  | 28  | SN74F776
74x777  | 3  | triple latched transceiver  |  | three-state and open-collector  | 20  | 74F777
74x779  | 1  | 8-bit bidirectional binary counter  |  | three-state  | 16  | MC74F779
74x783  | 1  | synchronous address multiplexer for display systems  |  |  | 40  | SN74LS783
74x784  | 1  | 8-bit serial/parallel multiplier with adder/subtractor  |  |  | 20  | 74F784
74x785  | 1  | synchronous address multiplexer for display systems with 256-column refresh  |  |  | 40  | SN74LS785
74x786  | 1  | 4-input asynchronous bus arbiter  |  |  | 16  | 74F786
74x790  | 1  | error detection and correction (EDAC)  |  | three-state  | 48  | SN74ALS790
74x793  | 1  | 8-bit latch, readback  |  |  | 20  | SN74LS793
74x794  | 1  | 8-bit register, readback  |  |  | 20  | SN74LS794
74x795  | 1  | octal buffer, non-inverting, common enable  |  | three-state  | 20  | SN74LS795
74x796  | 1  | octal buffer, inverting, common enable  |  | three-state  | 20  | SN74LS796
74x797  | 1  | octal buffer, non-inverting, enable for 4 buffers each  |  | three-state  | 20  | SN74LS797
74x798  | 1  | octal buffer, inverting, enable for 4 buffers each  |  | three-state  | 20  | SN74LS798

### 74x800 – 74x899

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x800  | 3  | triple 4-input AND/NAND drivers  |  | driver  | 20  | SN74AS800
74x802  | 3  | triple 4-input OR/NOR drivers  |  | driver  | 20  | SN74AS802
74x803  | 4  | quad D flip flops with matched propagation delays  |  |  | 14  | MC74F803
74x804  | 6  | hex 2-input NAND drivers  |  | driver  | 20  | SN74ALS804A
74x805  | 6  | hex 2-input NOR drivers  |  | driver  | 20  | SN74ALS805A
74x807  | 1  | 1-to-10 clock driver  |  | driver  | 20  | IDT74FCT807
74x808  | 6  | hex 2-input AND drivers  |  | driver  | 20  | SN74AS808B
74x810  | 4  | quad 2-input XNOR gates  |  |  | 14  | SN74ALS810
74x811  | 4  | quad 2-input XNOR gates  |  | open-collector  | 14  | DM74ALS811
74x817  | 1  | GTL+ to LV-TTL 1-to-6 fanout / LV-TTL to GTL+ 1-to-2 fanout driver  |  | three-state and open-collector  | (24)  | SN74GTLP817
74x818  | 1  | 8-bit diagnostic register  |  | three-state  | 24  | 74ACT818
74x819  | 1  | 8-bit diagnostic / pipeline register  |  | three-state  | 24  | SN74ALS819
74x821  | 1  | 10-bit bus interface flip-flop  |  | three-state  | 24  | SN74AS821A
74x822  | 1  | 10-bit bus interface flip-flop, inverting inputs  |  | three-state  | 24  | SN74AS822
74x823  | 1  | 9-bit D-type flip-flops, clear and clock enable inputs  |  | three-state  | 24  | SN74AS823A
74x824  | 1  | 9-bit D-type flip-flops, clear and clock enable inputs, inverting inputs  |  | three-state  | 24  | SN74AS824
74x825  | 1  | 8-bit D-type flip-flop, clear and clock enable inputs  |  | three-state  | 24  | SN74AS825A
74x826  | 1  | 8-bit D-type flip-flop, clear and clock enable inputs, inverting inputs  |  | three-state  | 24  | SN74AS826
74x827  | 1  | 10-bit buffer, non-inverting  |  | three-state  | 24  | MC74F827
74x828  | 1  | 10-bit buffer, inverting  |  | three-state  | 24  | MC74F828
74x832  | 6  | hex 2-input OR drivers  |  | driver  | 20  | SN74ALS832A
74x833  | 1  | 8-bit to 9-bit bus transceiver with parity register, non-inverting  |  | three-state  | 24  | SN74ABT833
74x834  | 1  | 8-bit to 9-bit bus transceiver with parity register, inverting  |  | three-state  | 24  | IDT74FCT834
74x835  | 1  | 8-bit shift register with 2:1 input multiplexers, one input latched, serial output  |  |  | 24  | 74F835
74x839  | 1  | field-programmable logic array 14x32x6  |  | three-state  | 24  | SN74PL839
74x840  | 1  | field-programmable logic array 14x32x6  |  | open-collector  | 24  | SN74PL840
74x841  | 1  | 10-bit D-type flip-flop  |  | three-state  | 24  | SN74ALS841
74x842  | 1  | 10-bit D-type flip-flop, inverting inputs  |  | three-state  | 24  | SN74ALS842
74x843  | 1  | 9-bit D flip-flops, clear and set inputs  |  | three-state  | 24  | SN74ALS843
74x844  | 1  | 9-bit D flip-flops, clear and set inputs, inverting inputs  |  | three-state  | 24  | SN74ALS844
74x845  | 1  | 8-bit D flip-flops, clear and set inputs  |  | three-state  | 24  | SN74ALS845
74x846  | 1  | 8-bit D flip-flops, clear and set inputs, inverting inputs  |  | three-state  | 24  | SN74ALS846
74x848  | 1  | 8 to 3-line priority encoder (glitch-less)  |  | three-state  | 16  | SN74LS848
74x850  | 1  | 1 of 16 data selector/multiplexer, clocked select  |  | three-state  | 28  | SN74AS850
74x851  | 1  | 1 of 16 data selector/multiplexer  |  | three-state  | 28  | SN74AS851
74x852  | 1  | 8-bit universal transceiver port controller  |  | three-state  | 24  | SN74AS852
74x853  | 1  | 8-bit to 9-bit bus transceiver with parity latch, non-inverting  |  | three-state  | 24  | SN74ABT853
74x854  | 1  | 8-bit to 9-bit bus transceiver with parity latch, inverting  |  | three-state  | 24  | IDT74FCT854
74x856  | 1  | 8-bit universal transceiver port controller  |  | three-state  | 24  | SN74AS856
74x857  | 6  | hex 2-line to 1-line multiplexer  |  | three-state  | 24  | SN74ALS857
74x861  | 1  | 10-bit bus transceiver, non-inverting  |  | three-state  | 24  | SN74ABT861
74x862  | 1  | 10-bit bus transceiver, inverting  |  | three-state  | 24  | SN74ABT862
74x863  | 1  | 9-bit bus transceiver, non-inverting  |  | three-state  | 24  | SN74ABT863
74x864  | 1  | 9-bit bus transceiver, inverting  |  | three-state  | 24  | 74F864
74x866  | 1  | 8-bit magnitude comparator with latches  |  |  | 24  | SN74AS866
74x867  | 1  | synchronous 8-bit up/down counter, asynchronous clear  |  |  | 24  | SN74ALS867A
74x869  | 1  | synchronous 8-bit up/down counter, synchronous clear  |  |  | 24  | SN74ALS869
74x870  | 1  | dual 16x4 register files  |  |  | 24  | SN74AS870
74x871  | 1  | dual 16x4 register files  |  |  | 28  | SN74AS871
74x873  | 2  | dual 4-bit transparent latch with clear  |  | three-state  | 24  | SN74ALS873B
74x874  | 2  | dual 4-bit edge-triggered D flip-flops with clear  |  | three-state  | 24  | SN74ALS874
74x876  | 2  | dual 4-bit edge-triggered D flip-flops with set, inverting outputs  |  | three-state  | 24  | SN74ALS876
74x877  | 1  | 8-bit universal transceiver port controller  |  | three-state  | 24  | SN74AS877
74x878  | 2  | dual 4-bit D-type flip-flop, synchronous clear, non-inverting outputs  |  | three-state  | 24  | SN74ALS878
74x879  | 2  | dual 4-bit D-type flip-flop, synchronous clear, inverting outputs  |  | three-state  | 24  | SN74ALS879
74x880  | 2  | dual 4-bit transparent latch with clear, inverting outputs  |  | three-state  | 24  | SN74ALS880
74x881  | 1  | 4-bit arithmetic logic unit  |  |  | 24  | SN74AS881A
74x882  | 1  | 32-bit lookahead carry generator  |  |  | 24  | SN74AS882
74x885  | 1  | 8-bit magnitude comparator  |  |  | 24  | SN74AS885
74x887  | 1  | 8-bit processor element (non-cascadable version of 74x888)  |  |  | (68)  | SN74AS887
74x888  | 1  | 8-bit processor slice  |  |  | 64  | SN74AS888
74x889  | 1  | 8-bit processor slice  |  |  | (68)  | SN74AS889
74x890  | 1  | microoperation sequencer  |  |  | 64  | SN74AS890
74x891  | 1  | microoperation sequencer  |  |  | (68)  | SN74AS891
74x895  | 1  | 8-bit memory address generator  |  |  | (68)  | SN74AS895
74x897  | 1  | 16-bit parallel/serial barrel shifter  |  |  | (68)  | SN74AS897A
74x899  | 1  | 9-bit latchable transceiver with parity generator / checker  |  | three-state  | (28)  | 74AC899

### 74x900 – 74x999

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x900  | 4  | quad 2-input NAND gate  |  | driver  | 14  | SN74ALS900
74x901  | 6  | hex inverting TTL buffer  |  |  | 14  | MM74C901
74C902  | 6  | hex non-inverting TTL buffer  |  |  | 14  | MM74C902
74ALS902  | 4  | quad 2-input NOR gate  |  | driver  | 14  | SN74ALS902
74C903  | 6  | hex inverting PMOS buffer  |  |  | 14  | MM74C903
74ALS903  | 4  | quad 2-input NAND gate  |  | open-collector driver  | 14  | SN74ALS903
74x904  | 6  | hex non-inverting PMOS buffer  |  |  | 14  | MM74C904
74x905  | 1  | 12-bit successive approximation register  |  |  | 24  | MM74C905
74x906  | 6  | hex open drain n-channel buffers  |  | open-collector  | 14  | MM74C906
74x907  | 6  | hex open drain p-channel buffers  |  |  | 14  | MM74C907
74x908  | 2  | dual 2-input NAND 30 V / 250 mA relay driver  |  |  | 8  | MM74C908
74x909  | 4  | quad voltage comparator  | analog  | open-collector  | 14  | MM74C909
74x910  | 1  | 256-bit RAM (64x4)  |  | three-state  | 18  | MM74C910
74x911  | 1  | 4-digit expandable display controller  |  | three-state  | 28  | MM74C911
74x912  | 1  | 6-digit BCD display controller and driver  |  | three-state  | 28  | MM74C912
74x913  | 1  | 6-digit BCD display controller and driver, no decimal point  |  |  | 24  | MM74C913
74x914  | 6  | hex inverter gate, extended input voltage  | Schmitt trigger  |  | 14  | MM74C914
74x915  | 1  | 7-segment to BCD converter  |  | three-state  | 18  | MM74C915
74x917  | 1  | 6-digit hex display controller and driver  |  | three-state  | 28  | MM74C917
74x918  | 2  | dual 2-input NAND 30 V / 250 mA relay driver  |  |  | 14  | MM74C918
74x920  | 1  | 1024-bit RAM (256x4), separate data inputs and outputs  |  | three-state  | 22  | MM74C920
74x921  | 1  | 1024-bit RAM (256x4)  |  | three-state  | 18  | MM74C921
74x922  | 1  | 16-key encoder  |  | three-state  | 18  | MM74C922
74x923  | 1  | 20-key encoder  |  | three-state  | 20  | MM74C923
74x925  | 1  | 4-digit counter/display driver  |  |  | 16  | MM74C925
74x926  | 1  | 4-digit decade counter/display driver, carry out and latch (up to 9999)  |  |  | 16  | MM74C926
74x927  | 1  | 4-digit timer counter/display driver (up to 9599, intended as time elapsed, i.e. 9:59.9 min)  |  |  | 16  | MM74C927
74x928  | 1  | 4-digit counter/display driver (up to 1999)  |  |  | 16  | MM74C928
74x929  | 1  | 1024-bit RAM (1024x1), single chip select  |  | three-state  | 16  | MM74C929
74x930  | 1  | 1024-bit RAM (1024x1), three chip selects  |  | three-state  | 18  | MM74C930
74x932  | 1  | phase comparator  |  |  | 8  | MM74C932
74x933  | 1  | 7-bit address bus comparator  |  |  | 20  | MM74C933
74934  | 1  | ADC similar to ADC0829, see corresponding NSC datasheet  |  |  |  |
74x935  | 1  | ADC for 3.5-digit digital voltmeters, multiplexed 7-segment display outputs  | analog  |  | 28  | MM74C935
74x936  | 1  | ADC for 3.75-digit digital voltmeters, multiplexed 7-segment display outputs  | analog  |  | ? | MM74C936
74x937  | 1  | ADC for 3.5-digit digital voltmeters, multiplexed BCD outputs  | analog  |  | 24  | MM74C937
74x938  | 1  | ADC for 3.75-digit digital voltmeters, multiplexed BCD outputs  | analog  |  | 24  | MM74C938
74x940  | 1  | octal bus/line drivers/line receivers  | Schmitt trigger  | three-state  | 20  | DM74S940
74x941  | 1  | octal bus/line drivers/line receivers  | Schmitt trigger  | three-state  | 20  | DM74S941
74x942  | 1  | 300 baud Bell 103 modem (+/- 5 V supply)  |  |  | 20  | MM74HC942
74x943  | 1  | 300 baud Bell 103 modem (single 5 V supply)  |  |  | 20  | MM74HC943
74x945  | 1  | 4-digit up/down counter, decoder and LCD driver, output latch  |  |  | 40  | MM74C945
74x946  | 1  | 4.5-digit counter, decoder and LCD driver, leading zero blanking  |  |  | 40  | MM74C946
74x947  | 1  | 4-digit up/down counter, decoder and LCD driver, leading zero blanking  |  |  | 40  | MM74C947
74x948  | 1  | 8-bit ADC with 16-channel analog multiplexer  | analog  | three-state  | 40  | MM74C948
74x949  | 1  | 8-bit ADC with 8-channel analog multiplexer  | analog  | three-state  | 28  | MM74C949
74x950  | 1  | 8-bit ADC with 8-channel analog multiplexer and sample and hold | analog  | three-state  | 28  | MM74C950
74x952  | 1  | dual rank 8-bit shift register, synchronous clear  |  | three-state  | 18  | DM74LS952
74C956  | 1  | 4-digit, 17-segment alpha-numeric LED display driver with memory and decoder  |  |  | 40  | MM74C956
74BCT956  | 1  | octal bus transceiver and latch  |  | three-state  | 24  | SN74BCT956
74x962  | 1  | dual rank 8-bit shift register, register exchange mode  |  | three-state  | 18  | DM74LS962
74x963  | 1  | dual rank 8-bit shift register, synchronous clear  |  | three-state  | 20  | SN74ALS963
74x964  | 1  | dual rank 8-bit shift register, synchronous and asynchronous clear  |  | three-state  | 20  | SN74ALS964
74x968  | 1  | controller/driver for 16k/64k/256k/1M dRAM  |  |  | 52  | 74F968
74x978  | 1  | octal flip-flop with serial scanner  |  |  | 24  | 74F978
74x979  | 1  | 9-bit registered transceiver with parity generator/checker for FutureBus  |  | three-state and open-collector  | (48)  | SN74BCT979
74x989  | 1  | 64-bit RAM (64x4), inverting output  |  | three-state  | 16  | MM74C989
74x990  | 1  | 8-bit D-type transparent read-back latch, non-inverting  |  | three-state  | 20  | SN74ALS990
74x991  | 1  | 8-bit D-type transparent read-back latch, inverting  |  | three-state  | 20  | SN74ALS991
74x992  | 1  | 9-bit D-type transparent read-back latch, non-inverting  |  | three-state  | 24  | SN74ALS992
74x993  | 1  | 9-bit D-type transparent read-back latch, inverting  |  | three-state  | 24  | SN74ALS993
74x994  | 1  | 10-bit D-type transparent read-back latch, non-inverting  |  | three-state  | 24  | SN74ALS994
74x995  | 1  | 10-bit D-type transparent read-back latch, inverting  |  | three-state  | 24  | SN74ALS995
74x996  | 1  | 8-bit D-type edge-triggered read-back latch  |  | three-state  | 24  | SN74ALS996

### 74x1000 – 74x1999

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x1000  | 4  | quad 2-input NAND gate  |  | driver  | 14  | SN74AS1000A
74x1002  | 4  | quad 2-input NOR gate  |  | driver  | 14  | SN74ALS1002A
74x1003  | 4  | quad 2-input NAND gate  |  | open-collector driver  | 14  | SN74ALS1003A
74x1004  | 6  | hex inverting buffer  |  | driver  | 14  | SN74ALS1004
74x1005  | 6  | hex inverting buffer  |  | open-collector driver  | 14  | SN74ALS1005
74x1008  | 4  | quad 2-input AND gate  |  | driver  | 14  | SN74AS1008A
74ALS1010  | 3  | triple 3-input NAND gate  |  | driver  | 14  | SN74ALS1010A
74AC1010,
74ACT1010  | 1  | 16x16-bit multiplier/accumulator  |  | three-state  | 64  | 74AC1010
74x1011  | 3  | triple 3-input AND gate  |  | driver  | 14  | SN74ALS1011A
74F1016  | 16  | 16-bit Schottky diode R-C bus termination array  |  |  | (20)  | SN74F1016
74AC1016,
74ACT1016  | 1  | 16x16-bit multiplier  |  | three-state  | 64  | 74AC1016
74x1017  | 1  | 16x16-bit parallel multiplier  |  | three-state  | 64  | 74AC1017
74x1018  | 18  | 18-bit Schottky diode R-C bus termination array  |  |  | (24)  | SN74F1018
74x1020  | 2  | dual 4-input NAND gate  |  | driver  | 14  | SN74ALS1020A
74x1032  | 4  | quad 2-input OR gate  |  | driver  | 14  | SN74AS1032A
74x1034  | 6  | hex non-inverting buffer  |  | driver  | 14  | SN74ALS1034
74x1035  | 6  | hex non-inverting buffer  |  | open-collector driver  | 14  | SN74ALS1035
74x1036  | 4  | quad 2-input NOR gate  |  | driver  | 14  | SN74ALS1036
74x1050  | 12  | 12-bit Schottky diode bus termination array, clamp to GND  |  |  | 16  | SN74S1050
74x1051  | 12  | 12-bit Schottky diode bus termination array, clamp to GND/VCC |  |  | 16  | SN74S1051
74x1052  | 16  | 16-bit Schottky diode bus termination array, clamp to GND  |  |  | 20  | SN74S1052
74x1053  | 16  | 16-bit Schottky diode bus termination array, clamp to GND/VCC |  |  | 20  | SN74S1053
74x1056  | 8  | 8-bit Schottky diode bus termination array, clamp to GND  |  |  | (16)  | SN74F1056
74x1071  | 10  | 10-bit bus termination array with bus-hold function  |  |  | (14)  | SN74ACT1071
74x1073  | 16  | 16-bit bus termination array with bus-hold function  |  |  | (20)  | SN74ACT1073
74x1074  | 2  | dual D negative edge triggered flip-flop, asynchronous preset and clear  |  |  | 14  | 74FR1074
74x1181  | 1  | 4-bit arithmetic logic unit  |  |  | 24  | SN74AS1181
74x1240  | 1  | octal buffer / line driver, inverting (lower-power version of 74x240)  |  | three-state  | 20  | SN74ALS1240
74x1241  | 1  | octal buffer / line driver, non-inverting (lower-power version of 74x241)  |  | three-state  | 20  | SN74ALS1241
74x1242  | 1  | quad bus transceiver, inverting (lower-power version of 74x242)  |  | three-state  | 14  | SN74ALS1242
74x1243  | 1  | quad bus transceiver, non-inverting (lower-power version of 74x243)  |  | three-state  | 14  | SN74ALS1243
74x1244  | 1  | octal buffer / driver, non-inverting (lower-power version of 74x244)  |  | three-state  | 20  | SN74ALS1244
74x1245  | 1  | octal bus transceiver (lower-power version of 74x245)  |  | three-state  | 20  | SN74ALS1245A
74x1280  | 1  | 9-bit parity generator/checker with registered outputs  |  | three-state  | 20  | QS74FCT1280
74x1284  | 1  | parallel printer interface transceiver / buffer (IEEE 1284)  |  |  | 20  | 74HCT1284
74x1394  | 1  | 2-bit GTLP transceiver with split LV-TTL port  |  | three-state and open-collector  | (16)  | SN74GTLP1394
74x1395  | 2  | Dual 1-bit GTLP transceiver with split LV-TTL port  |  | three-state and open-collector  | (20)  | SN74GTLP1395
74x1403  | 1  | 8-bit bus receiver plus 4-bit bus driver  | Schmitt trigger  | three-state  | (32)  | 74LVT1403
74x1404  | 1  | oscillator driver  | Schmitt trigger  |  | (8)  | SN74LVC1404
74x1604  | 1  | dual 8-bit transparent latch with output multiplexer  |  |  | 28  | 74F1604
74x1612  | 1  | 18-bit LV-TTL-to-GTLP adjustable-edge-rate universal bus transceiver  |  | three-state and open-collector  | (64)  | SN74GTLPH1612
74ALS1616  | 1  | 16x16-bit multimode multiplier  |  | three-state  | 64  | SN74ALS1616
74GTLPH1616  | 1  | 17-bit LV-TTL-to-GTLP adjustable-edge-rate universal bus transceiver with buffered clock outputs  |  | three-state and open-collector  | (64)  | SN74GTLPH1616
74x1620  | 1  | octal bus transceiver, inverting  |  | three-state  | 20  | SN74ALS1620
74x1621  | 1  | octal bus transceiver, non-inverting  |  | open-collector  | 20  | SN74ALS1621
74x1622  | 1  | octal bus transceiver, inverting  |  | open-collector  | 20  | SN74ALS1622
74x1623  | 1  | octal bus transceiver, non-inverting  |  | three-state  | 20  | SN74ALS1623
74x1627  | 1  | 18-bit LV-TTL-to-GTLP adjustable-edge-rate bus transceiver with source synchronous clock outputs  |  | three-state and open-collector  | (64)  | SN74GTLPH1627
74x1631  | 1  | quad bus driver with complementary outputs  |  | three-state  | 16  | SN74ALS1631[10](3-336)
74x1638  | 1  | octal bus transceiver, inverting (lower-power version of 74x638)  |  | three-state and open-collector  | 20  | SN74ALS1638
74x1639  | 1  | octal bus transceiver, non-inverting (lower-power version of 74x639)  |  | three-state and open-collector  | 20  | SN74ALS1639
74x1640  | 1  | octal bus transceiver, inverting (lower-power version of 74x640)  |  | three-state  | 20  | SN74ALS1640A
74x1641  | 1  | octal bus transceiver, non-inverting (lower-power version of 74x641)  |  | open-collector  | 20  | SN74ALS641
74x1642  | 1  | octal bus transceiver, inverting (lower-power version of 74x642)  |  | open-collector  | 20  | SN74ALS642
74x1643  | 1  | octal bus transceiver, inverting and non-inverting (lower-power version of 74x643)  |  | three-state  | 20  | SN74ALS643
74x1644  | 1  | octal bus transceiver, inverting and non-inverting (lower-power version of 74x644)  |  | open-collector  | 20  | SN74ALS644
74ALS1645  | 1  | octal bus transceiver, non-inverting (lower-power version of 74x645)  |  | three-state  | 20  | SN74ALS1645A
74GTLPH1645  | 1  | 16-bit LV-TTL-to-GTLP adjustable-edge-rate bus transceiver  |  | three-state and open-collector  | (56)  | SN74GTLPH1645
74x1650  | 2  | dual 9-bit Futurebus universal storage transceiver with split TTL I/O  |  | three-state and open-collector  | (100)  | SN74FB1650
74x1651  | 2  | 9-bit and 8-bit Futurebus universal storage transceivers with delayed buffered clock with split TTL I/O  |  | three-state and open-collector  | (100)  | SN74FB1651
74x1653  | 2  | 9-bit and 8-bit Futurebus universal storage transceivers with delayed buffered clock with split 3.3V TTL I/O  |  | three-state and open-collector  | (100)  | SN74FB1653
74x1655  | 2  | dual 8-bit GTL universal storage transceivers with live insertion  |  | three-state and open-collector  | (64)  | SN74GTL1655
74x1760  | 1  | 10-bit 4-way latched address multiplexer  |  | three-state  | 64  | 74F1760
74x1761  | 1  | dRAM and interrupt vector controller  |  |  | 48  | 74F1761
74x1762  | 1  | dRAM address controller  |  |  | 40  | 74F1762
74x1763  | 1  | single-port dRAM controller  |  |  | 48  | 74F1763
74x1764  | 1  | dual-port dRAM controller  |  |  | 48  | 74F1764
74x1765  | 1  | dual-port dRAM controller with address latch  |  |  | 48  | 74F1765
74x1766  | 1  | burst mode dRAM controller  |  |  | 48  | 74F1766
74x1779  | 1  | 8-bit bidirectional binary counter  |  | three-state  | 16  | 74F1779
74x1801  | 1  | FM, MFM, and DM encoder / decoder, data rates up to 10 MHz  |  |  | 24  | 74LS1801
74x1802  | 1  | SerDes with ECC and CRC, data rates up to 10 MHz  |  | three-state  | 48  | 74LS1802
74x1803  | 1  | quad clock driver  |  |  | 14  | MC74F1803
74x1804  | 6  | hex 2-input NAND  |  | driver  | 20  | DM74AS1804
74x1805  | 6  | hex 2-input NOR  |  | driver  | 20  | DM74AS1805
74x1808  | 6  | hex 2-input AND  |  | driver  | 20  | DM74AS1808
74x1811  | 1  | FM, MFM, and DM encoder / decoder, data rates up to 20 MHz  |  |  | 24  | 74LS1811
74x1812  | 1  | SerDes with ECC and CRC, data rates up to 30 MHz  |  | three-state  | 48  | 74LS1812
74x1821  | 1  | 10-bit bus interface flip-flops  |  | three-state  | 24  | SN74AS1821
74x1823  | 1  | 9-bit bus interface flip-flops with clear  |  | three-state  | 24  | SN74AS1823
74x1832  | 6  | hex 2-input OR  |  | driver  | 20  | DM74ALS1832
74x1841  | 1  | 10-bit bus interface transparent latches  |  | three-state  | 24  | SN74AS1841
74x1843  | 1  | 9-bit bus interface transparent latches with clear  |  | three-state  | 24  | SN74AS1843

### 74x2000 – 74x2999

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x2000  | 1  | direction discriminator with microprocessor interface  |  | three-state  | 28  | SN74LS2000
74x2003  | 1  | 8-bit level translator  |  |  | (20)  | SN74GTL2003
74x2006  | 1  | 13-bit GTL to 3.3V TTL level translator  |  | open-collector  | (28)  | SN74GTL2006
74x2007  | 1  | 12-bit GTL to 3.3V TTL level translator  |  | open-collector  | (28)  | SN74GTL2007
74x2010  | 1  | 10-bit level translator  |  |  | (24)  | SN74GTL2010
74x2014  | 1  | 4-bit GTL to TTL transceiver  |  | three-state and open-collector  | (14)  | SN74GTL2014
74x2031  | 1  | 9-bit Futurebus address/data transceiver  |  | three-state and open-collector  | (48)  | SN74FB2031
74x2032  | 1  | 9-bit Futurebus competition transceiver  |  | three-state and open-collector  | (48)  | SN74FB2032
74FB2033  | 1  | 8-bit Futurebus registered transceiver with split TTL I/O  |  | three-state and open-collector  | (52)  | SN74FB2033
74GTLP2033  | 1  | 8-bit GTLP registered transceiver with split LV-TTL I/O  |  | three-state and open-collector  | (48)  | SN74GTLP2033
74x2034  | 1  | 8-bit GTLP adjustable-edge-rate registered transceiver with split LV-TTL I/O  |  | three-state and open-collector  | (48)  | SN74GTLP2034
74x2040  | 1  | 8-bit Futurebus transceiver with split TTL I/O  |  | three-state and open-collector  | (48)  | SN74FB2040
74x2041  | 1  | 7-bit Futurebus transceiver with split TTL I/O  |  | three-state and open-collector  | (52)  | SN74FB2041
74x2107  | 1  | 12-bit GTL to 3.3V TTL level translator  |  | open-collector  | (28)  | SN74GTL2107
74x2125  | 4  | quad bus buffer  |  | three-state, 25 Ω series resistor  | (14)  | TC74VCX2125
74x2140  | 1  | 8k x 18 cache data RAM  |  | three-state  | (52)  | SN74ACT2140A
74x2150  | 1  | 512 x 8 cache address comparator  |  |  | 24  | SN74ACT2150A
74ACT2151  | 1  | 1k x 11 cache address comparator  |  |  | 28  | SN74ACT2151
74FCT2151  | 1  | 8-line to 1-line multiplexer  |  | 25 Ω series resistor  | (16)  | CD74FCT2151
74x2152  | 1  | 2k x 8 cache address comparator  |  |  | 28  | SN74ACT2152A
74ACT2153  | 1  | 1k x 11 cache address comparator  |  | open-collector  | 28  | SN74ACT2153
74FCT2153  | 2  | dual 4-line to 1-line multiplexer  |  | 25 Ω series resistor  | (16)  | CD74FCT2153
74x2154  | 1  | 2k x 8 cache address comparator  |  | open-collector  | 28  | SN74ACT2154A
74x2155  | 1  | 2k x 8 burst cache address comparator  |  | three-state  | (44)  | SN74ACT2155
74x2156  | 1  | 16k x 4 burst cache address comparator  |  | three-state  | (44)  | SN74ACT2156
74ACT2157  | 1  | 2k x 16 cache address comparator  |  | three-state  | (44)  | SN74ACT2157
74FCT2157  | 4  | quad 2-line to 1-line multiplexer  |  | 25 Ω series resistor  | (16)  | CD74FCT2157
74x2158  | 1  | 8k x 9 cache address comparator  |  | three-state  | (44)  | SN74ACT2158
74x2159  | 1  | 8k x 9 cache address comparator  |  | three-state  | (44)  | SN74ACT2159
74x2160  | 1  | 8k x 4 2-way cache address comparator  |  | three-state  | (32)  | SN74ACT2160
74x2161  | 1  | synchronous presettable 4-bit binary counter, asynchronous clear  |  | 25 Ω series resistor  | 16  | QS74FCT2161T
74ACT2163,
74BCT2163  | 1  | 16k x 5 cache address comparator  |  | three-state  | (32)  | SN74ACT2163
74FCT2163  | 1  | synchronous presettable 4-bit binary counter, synchronous clear  |  | 25 Ω series resistor  | 16  | QS74FCT2163T
74x2164  | 1  | 16k x 5 cache address comparator  |  | three-state  | (32)  | SN74ACT2164
74x2166  | 1  | 16k x 5 cache address comparator with input latches  |  | three-state  | (32)  | SN74BCT2166
74x2191  | 1  | synchronous presettable 4-bit binary up/down counter, common clock  |  | 25 Ω series resistor  | 16  | QS74FCT2191T
74x2193  | 1  | synchronous presettable 4-bit binary counter, separate up/down clocks  |  | 25 Ω series resistor  | 16  | QS74FCT2193T
74x2226  | 2  | dual 64-bit FIFO memories (64x1)  |  |  | (24)  | SN74ACT2226
74x2227  | 2  | dual 64-bit FIFO memories (64x1)  |  | three-state  | (28)  | SN74ACT2227
74x2228  | 2  | dual 256-bit FIFO memories (256x1)  |  |  | (24)  | SN74ACT2228
74x2229  | 2  | dual 256-bit FIFO memories (256x1)  |  | three-state  | (28)  | SN74ACT2229
74x2232  | 1  | 512-bit FIFO memory (64x8)  |  | three-state  | 24  | SN74ALS2232A
74x2233  | 1  | 576-bit FIFO memory (64x9)  |  | three-state  | 28  | SN74ALS2233A
74x2235  | 1  | 18432-bit bidirectional FIFO memory (2x1024x9)  |  | three-state  | (44)  | SN74ACT2235
74x2236  | 1  | 18432-bit bidirectional FIFO memory (2x1024x9)  |  | three-state  | (44)  | SN74ACT2236
74x2238  | 1  | 576-bit bidirectional FIFO memory (2x32x9)  |  | three-state  | 40  | SN74ALS2238
74x2240  | 2  | dual 4-bit bidirectional buffer / line driver, inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74BCT2240
74x2241  | 2  | dual 4-bit bidirectional buffer / line driver, non-inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74BCT2241
74x2242  | 1  | 4-bit bus transceiver, inverting  |  | three-state, 25 Ω series resistor  | 14  | SN74ALS2242
74x2243  | 1  | 4-bit bus transceiver, non-inverting  |  | three-state, 25 Ω series resistor  | (14)  | 74F2243
74x2244  | 2  | dual 4-bit buffer / line driver, non-inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74BCT2244
74x2245  | 1  | octal bus transceiver  |  | three-state, 25 Ω series resistor  | 20  | SN74ABT2245
74x2253  | 2  | dual 4-line to 1-line multiplexer  |  | three-state, 25 Ω series resistor  | (16)  | CD74FCT2253
74x2257  | 4  | quad 2-line to 1-line multiplexer  |  | three-state, 25 Ω series resistor  | (16)  | CD74FCT2257
74x2273  | 8  | octal D-type flip-flop with common clock and reset  |  | 25 Ω series resistor  | (20)  | CD74FCT2273
74x2299  | 1  | 8-bit universal shift register  |  | three-state, 25 Ω series resistor  | 20  | QS74FCT2299T
74x2323  | 2  | dual line receiver  | analog  |  | (8)  | SN74LS2323
74x2373  | 1  | 8-bit transparent latch  |  | three-state, 25 Ω series resistor  | (20)  | CD74FCT2373
74x2374  | 8  | octal D-type flip-flop with common clock  |  | three-state, 25 Ω series resistor  | (20)  | CD74FCT2374
74x2377  | 1  | 8-bit register with clock enable  |  | 25 Ω series resistor  | 20  | QS74FCT2377T
74x2400  | 2  | dual 4-bit buffer, inverting  | Schmitt trigger  | three-state  | 20  | 74THC2400
74x2410  | 1  | 11-bit MOS memory driver, non-inverting  |  | three-state, 25 Ω series resistor  | 28  | SN74BCT2410
74x2411  | 1  | 11-bit MOS memory driver, inverting  |  | three-state, 25 Ω series resistor  | 28  | SN74BCT2411
74x2414  | 2  | dual 2-to-4 line decoder with supply voltage monitor  |  |  | 20  | SN74BCT2414
74x2420  | 1  | 16-bit NuBus address/data transceiver and register  |  | three-state  | (68)  | SN74BCT2420
74x2423  | 1  | 16-bit latched multiplexer/demultiplexer NuBus transceiver, inverting  |  | three-state  | (68)  | SN74BCT2423
74x2424  | 1  | 16-bit latched multiplexer/demultiplexer NuBus transceiver, non-inverting  |  | three-state  | (68)  | SN74BCT2424
74x2425  | 1  | Macintosh Coprocessor Platform NuBus address/data registered transceiver  |  | three-state  | (100)  | SN74BCT2425
74x2440  | 1  | NuBus interface controller  |  |  | (68)  | SN74ACT2440
74x2441  | 1  | NuBus interface controller  |  |  | (100)  | SN74ACT2441
74x2442  | 1  | NuBus block slave address generator  |  | three-state  | (20)  | SN74ALS2442
74x2509  | 1  | 9-output clock driver with PLL |  | three-state  | (24)  | HD74CDC2509
74x2510  | 1  | 10-output clock driver with PLL |  | three-state  | (24)  | HD74CDC2510
74x2525  | 1  | 8-output clock driver  |  |  | 14  | 74AC2525
74x2526  | 1  | 8-output clock driver with input multiplexer  |  |  | 16  | 74AC2526
74x2533  | 1  | 8-bit bus interface latch, inverting  |  | three-state, 25 Ω series resistor  | 20  | QS74FCT2533T
74x2534  | 1  | 8-bit bus interface register, inverting  |  | three-state, 25 Ω series resistor  | 20  | QS74FCT2534T
74x2540  | 1  | 8-bit buffer / line driver, inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74ALS2540
74x2541  | 1  | 8-bit buffer / line driver, non-inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74ALS2541
74x2543  | 1  | 8-bit latched transceiver, non-inverting  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2543T
74x2544  | 1  | 8-bit latched transceiver, inverting  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2544T
74x2573  | 1  | 8-bit transparent latch  |  | three-state, 25 Ω series resistor  | 20  | QS74FCT2573T
74x2574  | 8  | octal D-type flip-flop with common clock  |  | three-state, 25 Ω series resistor  | 20  | QS74FCT2574T
74x2620  | 1  | octal bus transceiver / MOS driver, inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74AS2620
74x2623  | 1  | octal bus transceiver / MOS driver, non-inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74AS2623
74x2640  | 1  | octal bus transceiver / MOS driver, inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74AS2640
74x2643  | 1  | octal bus transceiver, mix of inverting and non-inverting outputs  |  | three-state, 25 Ω series resistor  | 20  | 74F2643
74x2645  | 1  | octal bus transceiver / MOS driver, non-inverting  |  | three-state, 25 Ω series resistor  | 20  | SN74AS2645
74x2646  | 1  | octal registered transceiver, non-inverting  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2646T
74x2648  | 1  | octal registered transceiver, inverting  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2648T
74x2651  | 1  | octal registered transceiver, inverting  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2651T
74x2652  | 1  | octal registered transceiver, non-inverting  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2652T
74S2708  | 1  | 8192-bit PROM (1024x8)  |  | three-state  | 24  | SN74S2708
74AC2708  | 1  | 576-bit FIFO memory (64x9)  |  | three-state  | 28  | 74AC2708
74x2725  | 1  | 4608-bit FIFO memory (512x9)  |  |  | 28  | 74ACT2725
74x2726  | 1  | 4608-bit bidirectional FIFO memory (512x9)  |  |  | 28  | 74ACT2726
74x2821  | 1  | 10-bit D-type flip-flop  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2821T
74x2823  | 1  | 9-bit D-type flip-flop with clear  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2823T
74x2825  | 1  | 8-bit D-type flip-flop with clear and clock enable  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2825T
74x2827  | 1  | 10-bit buffer, non-inverting  |  | three-state, 25 Ω series resistor  | 24  | SN74BCT2827A
74x2828  | 1  | 10-bit buffer, inverting  |  | three-state, 25 Ω series resistor  | 24  | SN74BCT2828A
74x2833  | 1  | 8-bit bus transceiver with parity error flip-flop  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2833T
74x2841  | 1  | 10-bit transparent latch  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2841T
74x2843  | 1  | 9-bit transparent latch with asynchronous reset  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2843T
74x2845  | 1  | 8-bit transparent latch with asynchronous reset and multiple output enable  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2845T
74x2853  | 1  | 8-bit bus transceiver with parity error latch  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2853T
74x2861  | 1  | 10-bit non-inverting bus transceiver  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2861T
74x2862  | 1  | 10-bit inverting bus transceiver  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2862T
74x2863  | 1  | 9-bit non-inverting bus transceiver with dual output enable  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2863T
74x2864  | 1  | 9-bit inverting bus transceiver with dual output enable  |  | three-state, 25 Ω series resistor  | 24  | QS74FCT2864T
74x2952  | 1  | octal bus transceiver and register, non-inverting  |  | three-state  | 24  | SN74LVC2952A
74x2953  | 1  | octal bus transceiver and register, inverting  |  | three-state  | 24  | 74F2953
74x2960 | 1  | error detection and correction (EDAC), equivalent to Am2960  |  | three-state  | 48  | MC74F2960
74x2961  | 1  | 4-bit EDAC bus buffer, inverting, equivalent to Am2961  |  | three-state  | 24  | MC74F2961A
74x2962  | 1  | 4-bit EDAC bus buffer, non-inverting, equivalent to Am2962  |  | three-state  | 24  | MC74F2962A
74x2967  | 1  | controller/driver for 16k/64k/256k dRAM  |  |  | 48  | SN74ALS2967
74x2968  | 1  | controller/driver for 16k/64k/256k dRAM  |  |  | 48  | SN74ALS2968
74x2969  | 1  | memory timing controller for use with EDAC |  |  | 48  | MC74F2969
74x2970  | 1  | memory timing controller for use without EDAC  |  |  | 24  | MC74F2970

### 74x3000 – 74x3999

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x3004  | 1  | selectable GTL voltage reference  |  | analog  | (6)  | SN74GTL3004
74x3037  | 4  | quad 2-input NAND gate  |  | driver 30 Ω  | 16  | 74F3037
74x3038  | 4  | quad 2-input NAND gate  |  | open-collector driver 30 Ω  | 16  | 74F3038
74x3040  | 2  | dual 4-input NAND gate  |  | driver 30 Ω  | 16  | 74F3040
74x3125  | 4  | quad FET bus switch, output enable active low  |  |  | (14)  | SN74CBT3125
74x3126  | 4  | quad FET bus switch, output enable active high  |  |  | (14)  | SN74CBT3126
74FCT3244  | 2  | dual 4-bit buffer / line driver  |  | three-state  | 20  | IDT74FCT3244
74CBT3244,
74FST3244  | 2  | dual 4-bit FET bus switch  |  |  | 20  | SN74CBT3244
IDT74FST3244
74FCT3245  | 1  | octal bidirectional transceiver  |  | three-state  | 20  | IDT74FCT3245
74CBT3245,
74FST3245  | 1  | octal FET bus switch  |  |  | 20  | SN74CBT3245A
IDT74FST3245
74LVX3245  | 1  | octal bidirectional voltage-translating transceiver  |  | three-state  | (24)  | 74LVX3245
74GTLPH3245  | 1  | 32-bit LV-TTL-to-GTLP adjustable-edge-rate bus transceiver  |  | three-state and open-collector  | (114)  | SN74GTLPH3245
74x3251  | 1  | 8-line to 1-line FET multiplexer / demultiplexer  |  |  | (16)  | SN74CBT3251
74x3253  | 2  | dual 4-line to 1-line FET multiplexer / demultiplexer  |  |  | (16)  | SN74CBT3253
74x3257  | 4  | quad 2-line to 1-line FET multiplexer / demultiplexer  |  |  | (16)  | IDT74FST3257
74x3283  | 1  | 32-bit latchable transceiver with parity checker / generator  |  | three-state  | (120)  | 74ACTQ3283
74x3284  | 1  | 18-bit synchronous datapath multiplexer  |  | three-state  | (100)  | 74ABT3284
74x3305  | 2  | dual FET bus switch with extended voltage range  |  |  | (8)  | SN74CBT3305C
74x3306  | 2  | dual FET bus switch  |  |  | (8)  | SN74CBT3306
74x3345  | 1  | octal FET bus switch, dual output enable  |  |  | (20)  | SN74CBT3345
74x3374  | 1  | 8-bit metastable-resistant D-type flip-flop  |  | three-state  | 20  | SN74AS3374
74x3383  | 1  | 5-bit 4-port FET bus exchange switch  |  |  | 24  | IDT74FST3383
74x3384  | 2  | dual 5-bit FET bus switch  |  |  | 24  | IDT74FST3384
74x3386  | 1  | 5-bit 4-port FET bus exchange switch with extended voltage range  |  |  | (24)  | SN74CBT3386
74x3390  | 1  | octal 2-line to 1-line FET multiplexer / bus switch  |  |  | (28)  | IDT74FST3390
74x3573  | 1  | octal transparent latch  |  | three-state  | 20  | IDT74FCT3573
74x3574  | 1  | octal D-type flip flop  |  | three-state  | 20  | IDT74FCT3574
74x3584  | 2  | dual 5-bit FET bus switch  |  | 25 Ω series resistor  | 24  | QS74QST3584
74x3611  | 1  | 2304-bit FIFO memory (64x36)  |  | three-state  | (120)  | SN74ABT3611
74x3612  | 1  | 4608-bit bidirectional FIFO memory (2x64x36)  |  | three-state  | (120)  | SN74ABT3612
74x3613  | 1  | 2304-bit FIFO memory (64x36)  |  | three-state  | (120)  | SN74ABT3613
74x3614  | 1  | 4608-bit bidirectional FIFO memory (2x64x36)  |  | three-state  | (120)  | SN74ABT3614
74x3622  | 1  | 18432-bit bidirectional FIFO memory (2x256x36)  |  | three-state  | (120)  | SN74ACT3622
74x3631  | 1  | 18432-bit FIFO memory (512x36)  |  | three-state  | (120)  | SN74ACT3631
74x3632  | 1  | 36864-bit bidirectional FIFO memory (2x512x36)  |  | three-state  | (120)  | SN74ACT3632
74x3638  | 1  | 32768-bit bidirectional FIFO memory (2x512x32)  |  | three-state  | (120)  | SN74ACT3638
74x3641  | 1  | 36864-bit FIFO memory (1024x36)  |  | three-state  | (120)  | SN74ACT3641
74x3642  | 1  | 73728-bit bidirectional FIFO memory (2x1024x36)  |  | three-state  | (120)  | SN74ACT3642
74x3651  | 1  | 73728-bit FIFO memory (2048x36)  |  | three-state  | (120)  | SN74ACT3651
74x3708  | 1  | 8192-bit PROM (1024x8)  |  | open-collector  | 24  | SN74S3708
74x3807  | 1  | 1-to-10 clock driver  |  | driver  | 20  | IDT74FCT3807
74x3827  | 1  | 10-bit buffer  |  | three-state  | 24  | IDT74FCT3827
74x3861  | 1  | 10-bit FET bus switch  |  |  | (24)  | SN74CBT3861
74x3862  | 1  | 10-bit FET bus switch with dual output enable  |  |  | (24)  | IDT74CBTLV3862
74x3893  | 1  | quad Futurebus backplane transceiver  |  | three-state and open-collector  | (20)  | MC74F3893A
74x3907  | 1  | Pentium clock synthesizer  |  | three-state  | (28)  | IDT74FCT3907
74x3932  | 1  | PLL-based clock driver  |  | three-state  | (48)  | IDT74FCT3932

### 74x4000 – 74x5999

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x4002  | 2  | dual 4-input NOR gate  |  |  | 14  | CD74HC4002
74x4015  | 2  | dual 4-bit shift registers  |  |  | 16  | CD74HC4015
74x4016  | 4  | quad bilateral switch  |  | analog  | 14  | CD74HC4016
74x4017  | 1  | 5-stage ÷10 Johnson counter  |  |  | 16  | CD74HC4017
74x4020  | 1  | 14-stage binary counter  |  |  | 16  | SN74HC4020
74x4022  | 1  | 4-stage ÷8 Johnson counter  |  |  | 14  | SN74HC4022
74x4024  | 1  | 7-stage ripple carry binary counter  |  |  | 14  | CD74HC4024
74x4028  | 1  | BCD to decimal decoder  |  |  | 16  | TC74HC4028P
74x4040  | 1  | 12-stage binary ripple counter  |  |  | 16  | SN74HC4040
74x4046  | 1  | phase-locked loop and voltage-controlled oscillator |  |  | 16  | CD74HC4046A
74x4049  | 6  | hex inverting buffer  |  |  | 16  | CD74HC4049
74x4050  | 6  | hex buffer/converter (non-inverting)  |  |  | 16  | CD74HC4050
74x4051  | 1  | high-speed 8-channel analog multiplexer/demultiplexer  |  | analog  | 16  | CD74HC4051
74x4052  | 2  | dual 4-channel analog multiplexer/demultiplexers  |  | analog  | 16  | CD74HC4052
74x4053  | 3  | triple 2-channel analog multiplexer/demultiplexers  |  | analog  | 16  | CD74HC4053
74x4059  | 1  | programmable divide-by-N counter  |  |  | 24  | CD74HC4059
74x4060  | 1  | 14-stage binary ripple counter with oscillator  |  |  | 16  | SN74HC4060
74x4061  | 1  | 14-stage asynchronous binary counter with oscillator  |  |  | 16  | SN74HC4061
74x4066  | 4  | quad single-pole single-throw analog switch  |  |  | 14  | SN74HC4066
74x4067  | 1  | 16-channel analog multiplexer/demultiplexer  |  | analog  | 24  | CD74HC4067
74x4072  | 2  | dual 4-input OR gate  |  |  | 14  | TC74HC4072
74x4075  | 3  | triple 3-input OR gate  |  |  | 14  | CD74HC4075
74x4078  | 1  | single 8-input OR/NOR gate  |  |  | 14  | MM74HC4078
74x4094  | 1  | 8-bit three-state shift register/latch  |  | three-state  | 16  | CD74HC4094
74x4102  | 1  | 2-digit BCD presettable synchronous down counter  |  |  | 16  | 74HC4102
74x4103  | 1  | 8-bit binary presettable synchronous down counter  |  |  | 16  | 74HC4103
74x4245  | 1  | 8-bit 3V/5V translating transceiver  |  | three-state  | (24)  | 74LVX4245
74x4301  | 1  | 8-bit latch, inverting  |  | three-state  | 20  | MN74HC4301
74x4302  | 1  | 8-bit latch, non-inverting  |  | three-state  | 20  | MN74HC4302
74x4303  | 1  | 8-bit D-type flip-flop, inverting outputs  |  | three-state  | 20  | MN74HC4303
74x4304  | 1  | 8-bit D-type flip-flop, non-inverting outputs  |  | three-state  | 20  | MN74HC4304
74x4305  | 2  | dual 4-bit buffer, inverting  |  | three-state  | 20  | MN74HC4305
74x4306  | 2  | dual 4-bit buffer, non-inverting  |  | three-state  | 20  | MN74HC4306
74x4316  | 4  | quad analog switch  |  | analog  | 14  | MM74HC4316
74x4351  | 1  | 8-channel analog multiplexer/demultiplexer with latch  |  | analog  | 20  | CD74HC4351
74x4352  | 2  | dual 4-channel analog multiplexer/demultiplexer with latch  |  | analog  | 20  | CD74HC4352
74x4353  | 3  | triple 2-channel analog multiplexer/demultiplexer with latch  |  | analog  | 20  | MC74HC4353
74x4374  | 1  | 8-bit dual-rank synchronizer  |  | three-state  | 20  | SN74AS4374
74x4503  | 1  | controller for 64k/256k/1M dynamic RAM  |  | three-state  | 52  | SN74ACT4503
74x4510  | 1  | BCD decade up/down counter  |  |  | 16  | CD74HC4510
74x4511  | 1  | BCD to 7-segment decoder  |  |  | 16  | CD74HC4511
74x4514  | 1  | 4-to-16 line decoder/demultiplexer, input latches  |  |  | 24  | CD74HC4514
74x4515  | 1  | 4-to-16 line decoder/demultiplexer with input latches; inverting  |  |  | 24  | CD74HC4515
74x4516  | 1  | 4-bit binary up/down counter  |  |  | 16  | CD74HC4516
74x4518  | 2  | dual 4-bit synchronous decade counter  |  |  | 16  | CD74HC4518
74x4520  | 2  | dual 4-bit synchronous binary counter  |  |  | 16  | CD74HC4520
74x4538  | 2  | dual retriggerable precision monostable multivibrator  |  |  | 16  | CD74HC4538
74x4543  | 1  | BCD to 7-segment latch/decoder/driver for LCDs  |  |  | 16  | CD74HC4543
74x4560  | 1  | 4-bit BCD adder  |  |  | 16  | MM74HC4560
74x4724  | 1  | 8-bit addressable latch  |  |  | 16  | SN74HC4724
74x4764  | 1  | programmable dRAM controller  |  |  | (100)  | 74ABT4764
74x4799  | 1  | Timer for NiCd and NiMH chargers  | Schmitt trigger  | open-collector and three-state  | 16  | 74LV4799
74x4851  | 1  | 8-channel analog multiplexer/demultiplexer  |  | analog  | 16  | SN74HC4851
74x4852  | 2  | dual 4-channel analog multiplexer/demultiplexer  |  | analog  | 16  | SN74HC4852
74x5074  | 2  | dual positive edge-triggered D-type flip-flop (metastable immune)  |  |  | 14  | 74ABT5074
74x5245  | 1  | octal bidirectional transceiver  | Schmitt trigger  | three-state  | 20  | DM74ALS5245
74x5300  | 1  | fiber optic LED driver  |  | driver 120 mA  | 8  | 74F5300
74x5302  | 2  | dual fiber optic LED / clock driver  |  | driver 160 mA  | 14  | 74F5302
74x5400  | 1  | 11-bit line/memory driver, non-inverting  |  | three-state, 25 Ω series resistor  | 28  | SN74ABT5400
74x5401  | 1  | 11-bit line/memory driver, inverting  |  | three-state, 25 Ω series resistor  | 28  | SN74ABT5401
74x5402  | 1  | 12-bit line/memory driver, non-inverting  |  | three-state, 25 Ω series resistor  | 28  | SN74ABT5402
74x5403  | 1  | 12-bit line/memory driver, inverting  |  | three-state, 25 Ω series resistor  | 28  | SN74ABT5403
74x5555  | 1  | programmable delay timer with oscillator  |  |  | 16  | 74HC5555
74x5620  | 1  | octal bidirectional transceiver  | Schmitt trigger  | three-state  | 20  | DM74ALS5620

### 74x6000 and above

Part number  | Units | Description | Input | Output | Pins | Datasheet
74x6000  | 1  | logic-to-logic optocoupler, non-inverting  |  |  | 6  | 74OL6000
74x6001  | 1  | logic-to-logic optocoupler, inverting  |  |  | 6  | 74OL6001
74x6010  | 1  | logic-to-logic optocoupler, non-inverting  |  | open-collector 15 V  | 6  | 74OL6010
74x6011  | 1  | logic-to-logic optocoupler, inverting  |  | open-collector 15 V  | 6  | 74OL6011
74x6300  | 1  | programmable dynamic memory refresh timer  |  |  | 16  | SN74ALS6300
74x6301  | 1  | dynamic memory refresh controller, transparent and burst modes, for 16K, 64K, 256K, and 1M dRAM  |  |  | 52  | SN74ALS6301
74x6302  | 1  | dynamic memory refresh controller, transparent and burst modes, for 16K, 64K, 256K, and 1M dRAM  |  |  | 52  | SN74ALS6302
74x6310  | 1  | static column and page mode access detector for dRAM  |  |  | 20  | SN74ALS6310A
74x6311  | 1  | static column and page mode access detector for dRAM  |  |  | 20  | SN74ALS6311A
74x6323  | 1  | programmable ripple counter with oscillator  |  | three-state  | (8)  | 74HC6323A
74x6364  | 1  | 64-bit flow-through error detection and correction circuit  |  | three-state  | (207)  | SN74AS6364
74x6800  | 1  | 10-bit FET bus switch with precharge  |  |  | 24  | IDT74FST6800
74x6845  | 1  | 8-bit FET bus switch with precharge and extended voltage range  |  |  | (20)  | SN74CBT6845C
74x7001  | 4  | quad 2-input AND gate  | Schmitt trigger  |  | 14  | SN74HC7001
74x7002  | 4  | quad 2-input NOR gate  | Schmitt trigger  |  | 14  | SN74HC7002
74x7003  | 4  | quad 2-input NAND gate  | Schmitt trigger  | open-collector  | 14  | SN74HC7003
74x7006  | 6  | two inverters, one 3-input NAND, one 4-input NAND, one 3-input NOR, one 4-input NOR  |  |  | 24  | SN74HC7006
74x7007  | 6  | hex buffer gate  |  |  | 14  | TC74HCT7007AP
74x7008  | 6  | two inverters, three 2-input NAND, three 2-input NOR  |  |  | 24  | SN74HC7008
74x7014  | 6  | hex buffer gate  | Schmitt trigger  |  | 14  | 74HC7014
74x7022  | 1  | 4-stage ÷8 Johnson counter with power-up clear  |  |  | 14  | SN74HC7022
74x7030  | 1  | 576-bit FIFO memory (64x9)  |  | three-state  | 28  | 74HC7030
74x7032  | 4  | quad 2-input OR gates  | Schmitt trigger  |  | 14  | SN74HC7032
74x7038  | 1  | 9-bit bus transceiver with latch  |  | three-state  | 24  | CD74HC7038
74x7046  | 1  | phase-locked loop with voltage-controlled oscillator and lock detector  |  |  | 16  | CD74HC7046A
74x7060  | 1  | 14-stage binary counter with oscillator  | Schmitt trigger  |  | 20  | CD74AC7060
74x7074  | 6  | two inverters, one 2-input NAND, one 2-input NOR, two D-type flip-flops  |  |  | 24  | SN74HC7074
74x7075  | 6  | two inverters, two 2-input NAND, two D-type flip-flops  |  |  | 24  | SN74HC7075
74x7076  | 6  | two inverters, two 2-input NOR, two D-type flip-flops  |  |  | 24  | SN74HC7076
74x7080  | 1  | 16-bit parity generator / checker  |  |  | 20  | 74HCT7080
74x7132  | 4  | quad adjustable comparator with output latches  | Schmitt trigger  | three-state  | 14  | 74HCT7132
74x7200  | 1  | 2304-bit FIFO memory (256x9)  |  |  | 28  | SN74ACT7200L
74x7201  | 1  | 4608-bit FIFO memory (512x9)  |  |  | 28  | SN74ACT7201LA
74x7202  | 1  | 9216-bit FIFO memory (1024x9)  |  |  | 28  | SN74ACT7202LA
74x7203  | 1  | 18432-bit FIFO memory (2048x9)  |  |  | 28  | SN74ACT7203L
74ACT7204  | 1  | 36864-bit FIFO memory (4096x9)  |  |  | 28  | SN74ACT7204L
74HCU7204  | 2  | dual unbuffered inverters  |  |  | (8)  | SN74HCU7204
74x7205  | 1  | 73728-bit FIFO memory (8192x9)  |  |  | 28  | SN74ACT7205L
74x7206  | 1  | 147456-bit FIFO memory (16384x9)  |  |  | 28  | SN74ACT7206L
74x7240  | 1  | octal bus buffer, inverting  | Schmitt trigger  | three-state  | 20  | TC74HC7240AP
74x7241  | 1  | octal bus buffer, non-inverting  | Schmitt trigger  | three-state  | 20  | TC74HC7241AP
74x7244  | 1  | octal bus buffer, non-inverting  | Schmitt trigger  | three-state  | 20  | TC74HC7244AP
74x7245  | 1  | octal bus transceiver, non-inverting  | Schmitt trigger  | three-state  | 20  | M74HC7245
74x7266  | 4  | quad 2-input XNOR gate  |  |  | 14  | SN74HC7266
74x7273  | 8  | octal positive edge-triggered D-type flip-flop with reset  |  | open-collector  | 20  | 74HCT7273
74x7292  | 1  | programmable divider/timer  |  |  | 16  | TC74HC7292AP
74x7294  | 1  | programmable divider/timer  |  |  | 16  | M74HC7294
74x7340  | 1  | 8-bit bus driver with bidirectional registers  |  | three-state  | 24  | SN74HC7340
74x7403  | 1  | 256-bit FIFO memory (64x4)  |  | three-state  | 16  | 74HC7403
74x7404  | 1  | 320-bit FIFO memory (64x5)  |  | three-state  | 18  | 74HC7404
74x7540  | 8  | octal buffer/line driver, inverting  | Schmitt trigger  | three-state  | 20  | 74HC7540
74x7541  | 8  | octal buffer/line driver, non-inverting  | Schmitt trigger  | three-state  | 20  | 74HC7541
74x7597  | 1  | 8-bit shift register with input latches  |  |  | 16  | 74HC7597
74x7623  | 1  | octal bus transceiver, non-inverting  |  | three-state and open-drain  | 20  | CD74AC7623
74x7640  | 1  | octal bus transceiver, inverting  | Schmitt trigger  | three-state  | 20  | M74HC7640
74x7643  | 1  | octal bus transceiver, non-inverting/inverting  | Schmitt trigger  | three-state  | 20  | M74HC7643
74x7645  | 1  | octal bus transceiver, non-inverting  | Schmitt trigger  | three-state  | 20  | M74HC7645
74x7731  | 4  | quad 64-bit static shift register  |  |  | 16  | 74HC7731
74x7793  | 1  | 8-bit noninverting transparent latch with readback  |  | three-state  | 20  | MC74HC7793
74x7801  | 1  | 18432-bit FIFO memory (1024x18), clocked  |  | three-state  | (68)  | SN74ACT7801
74x7802  | 1  | 18432-bit FIFO memory (1024x18)  |  | three-state  | (68)  | SN74ACT7802
74x7803  | 1  | 9216-bit FIFO memory (512x18), clocked  |  | three-state  | (56)  | SN74ACT7803
74x7804  | 1  | 9216-bit FIFO memory (512x18)  |  | three-state  | (56)  | SN74ACT7804
74x7805  | 1  | 4608-bit FIFO memory (256x18), clocked  |  | three-state  | (56)  | SN74ACT7805
74x7806  | 1  | 4608-bit FIFO memory (256x18)  |  | three-state  | (56)  | SN74ACT7806
74x7807  | 1  | 18432-bit FIFO memory (2048x9), clocked  |  | three-state  | (44)  | SN74ACT7807
74x7808  | 1  | 18432-bit FIFO memory (2048x9)  |  | three-state  | (44)  | SN74ACT7808
74x7811  | 1  | 18432-bit FIFO memory (1024x18), clocked  |  | three-state  | (68)  | SN74ACT7811
74x7813  | 1  | 1152-bit FIFO memory (64x18), clocked  |  | three-state  | (56)  | SN74ACT7813
74x7814  | 1  | 1152-bit FIFO memory (64x18)  |  | three-state  | (56)  | SN74ACT7814
74x7815  | 1  | 4608-bit bidirectional FIFO memory(2x64x36)  |  | three-state  | (120)  | SN74ABT7815
74x7816  | 1  | 4608-bit bidirectional FIFO memory(2x64x36)  |  | three-state  | (120)  | SN74ABT7816
74x7817  | 1  | 2304-bit FIFO memory(64x36)  |  | three-state  | (120)  | SN74ABT7817
74x7818  | 1  | 2304-bit FIFO memory(64x36)  |  | three-state  | (120)  | SN74ABT7818
74x7819  | 1  | 18432-bit bidirectional FIFO memory (2x512x18), clocked  |  | three-state  | (80)  | SN74ABT7819
74x7820  | 1  | 18432-bit bidirectional FIFO memory (2x512x18)  |  | three-state  | (80)  | SN74ABT7820
74x7821  | 1  | 32768-bit bidirectional FIFO memory (2x512x32)  |  | three-state  | (120)  | SN74ACT7821
74x7822  | 1  | 32768-bit bidirectional FIFO memory (2x512x32), clocked  |  | three-state  | (120)  | SN74ACT7822
74x7823  | 1  | 36864-bit FIFO memory (1024x36), clocked  |  | three-state  | (120)  | SN74ACT7823
74x7881  | 1  | 18432-bit FIFO memory (1024x18), clocked  |  | three-state  | (68)  | SN74ACT7881
74x7882  | 1  | 36864-bit FIFO memory (2048x18), clocked  |  | three-state  | (68)  | SN74ACT7882
74x7884  | 1  | 73728-bit FIFO memory (4096x18), clocked  |  | three-state  | (68)  | SN74ACT7884
74x8003  | 2  | dual 2-input NAND gate  |  |  | 8  | SN74ALS8003
74x8151  | 1  | 10-bit inverting/non-inverting buffer  | Schmitt trigger  | three-state  | 24  | SN74LV8151
74x8153  | 1  | 8-bit serial-to-parallel interface  |  | three-state or open-collector  | 20  | SN74LV8153
74x8154  | 2  | dual 16-bit counters with output registers  |  | three-state  | 20  | SN74LV8154
74x8161  | 1  | 8-bit synchronous binary counter  |  |  | 24  | SN74ALS8161
74x8240  | 1  | octal inverting buffer with JTAG port  |  | three-state  | 24  | SN74BCT8240A
74x8244  | 1  | octal non-inverting buffer with JTAG port  |  | three-state  | 24  | SN74BCT8244A
74x8245  | 1  | octal bus transceiver with JTAG port  |  | three-state  | 24  | SN74ABT8245
74x8373  | 1  | octal D-type latch with JTAG port  |  | three-state  | 24  | SN74BCT8373A
74x8374  | 1  | octal D-type edge-triggered flip-flop with JTAG port  |  | three-state  | 24  | SN74BCT8374A
74x8400  | 1  | expandable error checker / corrector  |  | three-state  | 48  | SN74ALS8400
74x8541  | 1  | 8-bit buffer, selectable inverting/non-inverting  | Schmitt trigger  | three-state  | 20  | SN74AHC8541
74x8543  | 1  | octal registered bus transceiver with JTAG port  |  | three-state  | 28  | SN74ABT8543
74x8646  | 1  | octal bus transceiver and register with JTAG port  |  | three-state  | 28  | SN74ABT8646
74x8652  | 1  | octal bus transceiver and register with JTAG port  |  | three-state  | 28  | SN74ABT8652
74x8818  | 1  | 16-bit microprogram sequencer, cascadable  |  | three-state  | (84)  | SN74ACT8818
74x8832  | 1  | 32-bit registered ALU  |  | three-state  | (208)  | SN74ACT8832
74x8834  | 1  | 40-bit register file  |  | three-state  | (156)  | SN74AS8834
74x8835  | 1  | 16-bit microprogram sequencer, cascadable  |  | three-state  | (156)  | SN74AS8835
74x8836  | 1  | 32x32-bit multiplier/accumulator  |  | three-state  | (156)  | SN74ACT8836
74x8837  | 1  | 64-bit floating point unit  |  | three-state  | (208)  | SN74ACT8837
74x8838  | 1  | 64-bit barrel shifter  |  | three-state  | (84)  | SN74AS8838
74x8839  | 1  | 32-bit shuffle/exchange network  |  | three-state  | (85)  | SN74AS8839
74x8840  | 1  | digital crossbar switch  |  | three-state  | (156)  | SN74AS8840
74x8841  | 1  | digital crossbar switch  |  | three-state  | (156)  | SN74ACT8841
74x8847  | 1  | 64-bit floating point and integer unit  |  | three-state  | (208)  | SN74ACT8847
74x8867  | 1  | 32-bit vector processor unit  |  | three-state  | (208)  | SN74ACT8867
74x8952  | 1  | octal registered bus transceiver with JTAG port  |  | three-state  | 28  | SN74ABT8952
74x8960  | 1  | 8-bit bidirectional latched FutureBus transceiver, inverting  |  | three-state and open-collector  | 28  | 74F8960
74x8961  | 1  | 8-bit bidirectional latched FutureBus transceiver, non-inverting  |  | three-state and open-collector  | 28  | 74F8961
74x8962  | 1  | 9-bit bidirectional latched FutureBus transceiver, inverting  |  | three-state and open-collector  | (44)  | 74F8962
74x8963  | 1  | 9-bit bidirectional latched FutureBus transceiver, non-inverting  |  | three-state and open-collector  | (44)  | 74F8963
74x8965  | 1  | 9-bit bidirectional latched FutureBus transceiver, latch select  |  | three-state and open-collector  | (44)  | 74F8965
74x8966  | 1  | 9-bit bidirectional latched FutureBus transceiver, idle arbitration request / output  |  | three-state and open-collector  | (44)  | 74F8966
74x8980  | 1  | JTAG test access port master with 8-bit host interface  |  | three-state  | 24  | SN74LVT8980
74x8986  | 1  | linkable, multidrop-addressable JTAG transceiver  |  | three-state  | (64)  | SN74LVT8986
74x8990  | 1  | JTAG test access port master with 16-bit host interface  |  | three-state  | (44)  | SN74ACT8990
74x8994  | 1  | JTAG scan-controlled logic/signature analyzer  |  |  | (28)  | SN74ACT8994
74x8996  | 1  | multidrop-addressable JTAG transceiver  |  |  | 24  | SN74ABT8996
74x8997  | 1  | scan-controlled JTAG concatenator  |  | three-state  | 28  | SN74ACT8997
74x8999  | 1  | scan-controlled JTAG multiplexer  |  | three-state  | 28  | SN74ACT8999
74x9000  | 1  | programmable timer with oscillator  |  |  | 20  | MC74HC9000
74x9014  | 9  | nine-wide buffer/line driver, inverting  | Schmitt trigger  |  | 20  | 74HC9014
74x9015  | 9  | nine-wide buffer/line driver, non-inverting  | Schmitt trigger  |  | 20  | 74HC9015
74x9034  | 9  | nine-wide buffer, inverting  |  |  | 20  | MC74HC9034
74x9035  | 9  | nine-wide buffer, noninverting  |  |  | 20  | MC74HC9035
74x9046  | 1  | PLL with band gap controlled VCO  |  |  | 16  | 74HCT9046
74x9114  | 9  | nine-wide inverter  | Schmitt trigger  | open-collector  | 20  | 74HC9114
74x9115  | 9  | nine-wide buffer  | Schmitt trigger  | open-collector  | 20  | 74HC9115
74x9134  | 9  | nine-wide buffer, inverting  |  | open-collector  | 20  | MC74HC9134
74x9135  | 9  | nine-wide buffer, noninverting  |  | open-collector  | 20  | MC74HC9135
74x9164  | 1  | 8-bit shift register (serial in/out, parallel in/out)  | Schmitt trigger  | three-state  | (16)  | TC74VHC9164
74x9240  | 1  | 9-bit buffer / line driver, inverting  |  | three-state  | 24  | 74FR9240
74x9244  | 1  | 9-bit buffer / line driver, non-inverting  |  | three-state  | 24  | 74FR9244
74x9245  | 1  | 9-bit bidirectional transceiver, non-inverting  |  | three-state  | 24  | 74FR9245
74x9323  | 1  | programmable ripple counter with oscillator  |  | three-state  | (8)  | 74HC9323A
74x9510  | 1  | 16×16-bit multiplier/accumulator (compatible to Am29510 and TDC1010)  |  | three-state  | (68)  | 74HC9510[9]:534
74x9541  | 1  | 8-bit buffer / line driver, inverting / non-inverting  | Schmitt trigger  | three-state  | (20)  | 74AHC9541A
74x9595  | 1  | 8-bit shift register with latch (serial in, parallel out)  | Schmitt trigger  |  | (16)  | TC74VHC9595
74x40102  | 1  | presettable synchronous 2-decade BCD down counter  |  |  | 16  | CD74HC40102
74x40103  | 1  | presettable 8-bit synchronous down counter  |  |  | 16  | CD74HC40103
74x40104  | 4  | 4-bit bidirectional universal shift register  |  | three-state  | 16  | CD74HC40104
74x40105  | 1  | 64-bit FIFO memory (16x4)  |  | three-state  | 16  | CD74HC40105
Part number | Units | Description | Input | Output | Pins | Datasheet

## Smaller footprints

As board designs have migrated away from large amounts of logic chips, so has the need for many of the same gate in one package. Since about 1996,[12] there has been an ongoing trend towards one / two / three logic gates per chip. Now logic can be placed where it is physically needed on a board, instead of running long signal traces to a full-size logic chip that has many of the same gate.[13]

All chips in the following sections are available 5- to 10-pin surface-mount packages. The right digits, after the 1G/2G/3G, typically has the same functional features as older legacy chips, except for the multifunctional chips and 4-digit chip numbers, which are unique to these newer families. The "x" in the part number is a place holder for the logic family name. For example, 74x1G14 in "LVC" logic family would be "74LVC1G14". The previously stated prefixes of "SN-" and "MC-" are used to denote manufacturers, Texas Instruments and ON Semiconductor respectively.[14][15][16]

Some of the manufacturers that make these smaller IC chips are: Diodes Incorporated, Nexperia (NXP Semiconductors), ON Semiconductor (Fairchild Semiconductor), Texas Instruments (National Semiconductor), Toshiba.

The logic families available in small footprints are: AHC, AHCT, AUC, AUP, AXP, HC, HCT, LVC, VHC, NC7S, NC7ST, NC7SU, NC7SV. The LVC family is very popular in small footprints because it supports the most common logic voltages of 1.8 V, 3.3 V, 5 V, its inputs are 5 V tolerant when the device is powered at a lower voltage, and an output drive of 24 mA. Gates that are commonly available across most small footprint families are 00, 02, 04, 08, 14, 32, 86, 125, 126.

### One-gate chips

All chips in this section have one gate, noted by the "1G" in the part numbers.

Part number | Description | Input | Output | Pins | Datasheet

|
|
|
|
|

74x1G00  | single 2-input NAND gate |  |  | 5  | LVC
74x1G02  | single 2-input NOR gate |  |  | 5  | LVC
74x1G04  | single inverter gate  |  |  | 5  | LVC
74x1G06  | single inverter gate  |  | open-drain | 5  | LVC
74x1G07  | single buffer gate  |  | open-drain  | 5  | LVC
74x1G08  | single 2-input AND gate |  |  | 5  | LVC
74x1G09  | single 2-input AND gate  |  | open-drain  | 5  | AUP
74x1G10  | single 3-input NAND gate  |  |  | 6  | LVC
74x1G11  | single 3-input AND gate  |  |  | 6  | LVC
74x1G14  | single inverter gate  | schmitt trigger  |  | 5  | LVC
74x1G17  | single buffer gate  | schmitt trigger  |  | 5  | LVC
74x1G18  | single 1-of-2 non-inverting demultiplexer, deselected output is 3-state  |  | three-state | 6  | LVC
74x1G19  | single 1-to-2 line decoder, active low outputs  |  |  | 6  | LVC
74x1G27  | single 3-input NOR gate  |  |  | 6  | LVC
74x1G29  | single 2-to-3 line decoder, active low outputs  |  |  | 8  | LVC
74x1G32  | single 2-input OR gate |  |  | 5  | LVC
74x1G34  | single buffer gate  |  |  | 5  | LVC
74x1G38  | single 2-input NAND gate  |  | open-drain  | 5  | LVC
74x1G57  | single configurable 7-function gate  | schmitt trigger  |  | 6  | LVC
74x1G58  | single configurable 7-function gate  | schmitt trigger  |  | 6  | LVC
74x1G66  | single SPST analog switch  | analog  | analog  | 5  | LVC
74x1G74  | single D-type flip-flop, positive-edge trigger, Q & Q outputs, asynchronous preset and clear  |  |  | 8  | LVC
74x1G79  | single D-type flip-flop, positive-edge trigger, Q output  |  |  | 5  | LVC
74x1G80  | single D-type flip-flop, positive-edge trigger, Q output  |  |  | 5  | LVC
74x1G86  | single 2-input XOR gate (a.k.a. 2-bit even-parity generator)  |  |  | 5  | LVC
74x1G97  | single configurable 7-function gate  | schmitt trigger  |  | 6  | LVC
74x1G98  | single configurable 7-function gate  | schmitt trigger  |  | 6  | LVC
74x1G99  | single configurable 15-function gate, active-low enable  | schmitt trigger  | three-state  | 8  | LVC
74x1G123  | single retriggerable monostable multivibrator, active-low clear  |  |  | 8  | LVC
74x1G125  | single buffer gate, active-low enable  |  | three-state  | 5  | LVC
74x1G126  | single buffer gate, active-high enable  |  | three-state  | 5  | LVC
74x1G132  | single 2-input NAND gate  | schmitt trigger  |  | 5  | LVC
74x1G139  | single 2-to-4 line decoder, active low outputs  |  |  | 8  | LVC
74x1G157  | single 2-input multiplexer  | schmitt trigger  |  | 6  | LVC
74x1G158  | single 2-input multiplexer, inverted output  | schmitt trigger  |  | 6  | AUP
74x1G175  | single D-type flip-flop, positive-edge trigger, Q output, asynchronous clear  |  |  | 6  | LVC
74x1G240  | single inverter gate, active-low enable  |  | three-state  | 5  | LVC
74x1G332  | single 3-input OR gate  |  |  | 6  | LVC
74x1G373  | single D-type transparent latch, negative-edge latching, Q output, active-low enable  |  | three-state  | 6  | LVC
74x1G374  | single D-type flip-flop, positive-edge trigger, Q output, active-low enable  |  | three-state  | 6  | LVC
74x1G386  | single 3-input XOR Gate (a.k.a. 3-bit even-parity generator)  |  |  | 6  | LVC
74x1G0832  | single 3-input AND-OR combo gate (2-input AND into 2-input OR)  | schmitt trigger  |  | 6  | LVC
74x1G3157  | single SPDT analog switch  | analog  | analog  | 6  | LVC
74x1G3208  | single 3-input OR-AND combo gate (2-input OR into 2-input AND)  | schmitt trigger  |  | 6  | LVC

### Two-gate chips

All chips in this section have two gates, noted by the "2G" in the part numbers.

Part number | Description | Input | Output | Pins | Datasheet

|
|
|
|
|

74x2G00  | dual 2-input NAND gate  |  |  | 8  | LVC
74x2G02  | dual 2-input NOR gate  |  |  | 8  | LVC
74x2G04  | dual inverter gate  |  |  | 6  | LVC
74x2G06  | dual inverter gate  |  | open-drain | 6  | LVC
74x2G07  | dual buffer gate  |  | open-drain  | 6  | LVC
74x2G08  | dual 2-input AND gate  |  |  | 8  | LVC
74x2G14  | dual inverter gate  | schmitt trigger  |  | 6  | LVC
74x2G17  | dual buffer gate  | schmitt trigger  |  | 6  | LVC
74x2G32  | dual 2-input OR gate  |  |  | 8  | LVC
74x2G34  | dual buffer gate  |  |  | 6  | LVC
74x2G38  | dual 2-input NAND gate  |  | open-drain  | 8  | LVC
74x2G57  | dual configurable 7-function gate  | schmitt trigger  |  | 10  | AUP
74x2G58  | dual configurable 7-function gate  | schmitt trigger  |  | 10  | AUP
74x2G66  | dual SPST analog switch  | analog  | analog  | 8  | LVC
74x2G79  | dual D-type flip-flop, positive-edge trigger, Q output  |  |  | 8  | LVC
74x2G80  | dual D-type flip-flop, positive-edge trigger, Q output  |  |  | 8  | LVC
74x2G86  | dual 2-input XOR gate (a.k.a. 2-bit even-parity generator)  |  |  | 8  | LVC
74x2G97  | dual configurable 7-function gate  | schmitt trigger  |  | 10  | AUP
74x2G98  | dual configurable 7-function gate  | schmitt trigger  |  | 10  | AUP
74x2G125  | dual buffer, active-low enable  |  | three-state | 8  | LVC
74x2G126  | dual buffer, active-high enable  |  | three-state  | 8  | LVC
74x2G132  | dual 2-input NAND gate  | schmitt trigger  |  | 8  | LVC
74x2G240  | dual inverter gate, active-low enable  |  | three-state  | 8  | LVC
74x2G241  | dual buffer, active-low and active-high enables  |  | three-state  | 8  | LVC
74x2G0604  | dual combo gates - one inverter, one inverter with O.D.  |  | open-drain  | 6  | AUP
74x2G3404  | dual combo gates - one buffer, one inverter  |  |  | 6  | AUP
74x2G3407  | dual combo gates - one buffer, one buffer with O.D.  |  | open-drain  | 6  | AUP

### Three-gate chips

All chips in this section have three gates, noted by the "3G" in the part numbers.

Part number | Description | Input | Output | Pins | Datasheet

|
|
|
|
|

74x3G04  | triple inverter gate  |  |  | 8  | LVC
74x3G06  | triple inverter gate  | schmitt trigger | open-drain | 8  | LVC
74x3G07  | triple buffer gate  | schmitt trigger  | open-drain  | 8  | LVC
74x3G14  | triple inverter gate  | schmitt trigger  |  | 8  | LVC
74x3G16  | triple buffer gate  |  |  | 8  | LVC
74x3G17  | triple buffer gate  | schmitt trigger  |  | 8  | LVC
74x3G34  | triple buffer gate  |  |  | 8  | LVC
74x3G0434  | triple combo gates - two inverter, one buffer  |  |  | 8  | AUP
74x3G3404  | triple combo gates - two buffer, one inverter  |  |  | 8  | AUP

### Voltage translation

All chips in this section have two power-supply pins to translate unidirectional logic signals between two different logic voltages. The logic families that support dual-supply voltage translation are AVC, AVCH, AXC, AXCH, AXP, LVC, where the "H" in AVCH and AXCH means "bus hold" feature.

Part number | Description | Pins | AXC | AXP | LVC

|
|
|
|
|

74x1T45  | 1 buffer  | 6  | AXC | AXP | LVC
74x2T45  | 2 buffers  | 8  | AXC | AXP | LVC
74x4T245  | 4 buffers  | 16  | AXC | AXP | n/a
74x8T245  | 8 buffers  | 24  | AXC | AXP | LVC
74x16T245  | 16 buffers  | 48  | n/a  | n/a  | LVC

Chips in the above table support the following voltage ranges on either power supply pin:

* AXC = 0.65 to 3.6 V. Only available from Texas Instruments.
* AXP = 0.9 to 5.5 V. Only available from Nexperia.
* LVC = 1.65 to 5.5 V. Available from Diodes Inc, Nexperia, Texas Instruments.

## See also

* 7400-series integrated circuits
* 4000-series integrated circuits
* List of 4000-series integrated circuits
* Push–pull output, Open-collector output, Three-state output
* Schmitt trigger input
* Logic gate, Logic family
* Programmable logic device
* Pin compatibility

## References

1. ↑ "1967–1968 Integrated Circuits Catalog (page 10)". Texas Instruments. https://archive.org/details/bitsavers_tidataBookts196768_16942634/page/n10.
2. ↑ "RCA Solid State Databook High Speed CMOS Logic (1988, page 536)". RCA. https://archive.org/details/bitsavers_rcadataBooMOS_35821859/page/n536.
3. ↑ "FAST Advanced Schottky TTL Logic (1988, cover page)". National Semiconductor. https://archive.org/details/bitsavers_nationaldaFASTDatabook_31226275.
4. ↑ "FACT Advanced CMOS Logic Databook (1990, cover page))". National Semiconductor. https://archive.org/details/bitsavers_nationaldaFACTDatabook_39311242.
5. ↑ "Samsung High Performance CMOS Data Book 1988 (page 31)". Samsung. https://archive.org/details/bitsavers_samsungdatghPerformanceCMOSLogicDataBook_50512171/page/n31.
6. ↑ "1990/1991 Logic Databook (page 401)". Integrated Device Technology. https://archive.org/details/bitsavers_idtdataBooook_39008706/page/n401.
7. ↑ 7.0 7.1 (in de) TTL-Taschenbuch, Teil 1. Vaterstetten: IWT Verlag. 1992. ISBN 3-88322-191-0.
8. ↑ 8.0 8.1 8.2 Don Lancaster (1974). TTL Cookbook. SAMS. ISBN 0-672-2 1035-5. https://www.tinaja.com/ebooks/TTLCB1.pdf.
9. ↑ 9.0 9.1 (in de) HCMOS-Taschenbuch. Bonn: mitp-Verlag. 2003. ISBN 3-8266-1314-7.
10. ↑ 10.0 10.1 10.2 (in de) TTL-Taschenbuch, Teil 3. Bonn: mitp-Verlag. 2002. ISBN 3-8266-0802-X.
11. ↑ 11.0 11.1 "Catálogo de Componentes" (in es). 2006-01-20. http://www.reniemarquet.com/kicad/libs/o_ttl.pdf.
12. ↑ "The Fairchild Division of National Semiconductor Introduces Industry's Fastest 5V Single-Gate Logic". Fairchild Semiconductor. November 25, 1996. http://fairchildsemi.com:80/news/1996/9611/dm96001dl.html.
13. ↑ "Unique and Novel Uses for ON Semiconductor's New One-Gate family". ON Semiconductor. June 2000. http://www.onsemi.com/pub/Collateral/AND8018-D.PDF.
14. ↑ 2018 Little Logic Guide; Texas Instruments.
15. ↑ 74AUP Logic Guide; NXP.
16. ↑ 74LVC Logic Guide; NXP.

## Further reading

* Digital Integrated Circuits, National Semiconductor Corporation, January 1974
* Logic/Memories/Interface/Analog/Microprocessor/Military Data Manual, Signetics Corporation, 1976
* The Bipolar Microcomputer Components Data Book for Design Engineers, Second Edition, Texas Instruments, 1979
* The TTL Data Book for Design Engineers, Second Edition, Texas Instruments, 1976
* Bipolar LSI 1982 Databook, Monolithic Memories Incorporated, September 1981
* Schottky TTL Data, DL121R1 Series D Third Printing, Motorola, 1983
* High-Speed CMOS Logic Data Book, Texas Instruments, 1984
* Logic: Overview, Texas Instruments Incorporated
* ALVC Advanced Low-Voltage CMOS Including SSTL, HSTL, And ALB (Rev. B), Texas Instruments, 2002
* IC Master, 1976
* Schottky and Low-Power Schottky Data Book, Advanced Micro Devices, July 1978

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