List of 7400 series integrated circuits

The following is a list of 7400 series digital logic integrated circuits. The 7400 series originated with TTL integrated circuits made by Texas Instruments. Because of the popularity of these parts, they were second-sourced by other manufacturers who kept the 7400 sequence number as an aid to identification of compatible parts. As well, compatible TTL parts originated by other manufacturers were second sourced in the TI product line under a 74XXX series part number.

Parts are listed here as if made in the basic, standard power and speed, TTL form, although many later parts were never manufactured with that technology.

*7400: Quad 2-input NAND gate
*7401: Quad 2-input NAND gate with open collector outputs
*7402: Quad 2-input NOR Gate
*7403: Quad 2-input NAND Gate with open collector outputs (different pinout than 7401)
*7404: Hex Inverter
*7405: Hex Inverter with open collector outputs
*7406: Hex Inverter Buffer/Driver with 30V open collector outputs
*7407: Hex Buffer/Driver with 30V open collector outputs
*7408: Quad 2-input AND gate
*7409: Quad 2-input AND gate with open collector outputs
*7410: Triple 3-input NAND Gate
*7411: Triple 3-input AND gate
*7412: Triple 3-input NAND Gate with open collector outputs
*7413: Dual Schmitt trigger 4-input NAND Gate
*7414: Hex Schmitt trigger Inverter
*7415: Triple 3-input AND gate with open collector outputs
*7416: Hex Inverter Buffer/Driver with 15V open collector outputs
*7417: Hex Buffer/Driver with 15V open collector outputs
*7419: Hex Schmitt trigger Inverter
*7420: Dual 4-input NAND Gate
*7421: Dual 4-input AND gate
*7422: Dual 4-Input NAND Gate with open collector Outputs
*7423: Expandable Dual 4-input NOR Gate with Strobe
*7424: Quad 2-input NAND Gate gates with schmitt-trigger line-receiver inputs.
*7425: Dual 4-input NOR Gate with Strobe
*7426: Quad 2-input NAND Gate with 15V open collector outputs
*7427: Triple 3-input NOR Gate
*7428: Quad 2-input NOR Buffer
*7430: 8-input NAND Gate
*7431: Hex Delay Elements
*7432: Quad 2-input OR Gate
*7433: Quad 2-input NOR Buffer with open collector outputs
*7436: Quad 2-input NOR Gate (different pinout than 7402)
*7437: Quad 2-input NAND Buffer
*7438: Quad 2-input NAND Buffer with open collector outputs
*7439: Quad 2-input NAND Buffer
*7440: Dual 4-input NAND Buffer
*7441: BCD to Decimal Decoder/NIXIE Tube Driver
*7442: BCD to Decimal Decoder
*7443: Excess-3 to Decimal Decoder
*7444: Excess-3-Gray to Decimal Decoder
*7445: BCD to Decimal Decoder/Driver
*7446: BCD to 7-segment Decoder/Driver with 30V open collector outputs
*7447: BCD to 7-segment Decoder/Driver with 15V open collector outputs
*7448: BCD to 7-segment Decoder/Driver with Internal Pullups
*7449: BCD to 7-segment Decoder/Driver with open collector outputs
*7450: Dual 2-Wide 2-input AND-OR-INVERT Gate (one gate expandable)
*7451: Dual 2-Wide 2-Input AND-OR-INVERT Gate
*7452: Expandable 4-Wide 2-input AND-OR Gate
*7453: Expandable 4-Wide 2-input AND-OR-INVERT Gate
*7454: 4-Wide 2-Input AND-OR-INVERT Gate
*7455: 2-Wide 4-Input AND-OR-INVERT Gate (74H version is expandable)
*7456: 50:1 Frequency divider
*7457: 60:1 Frequency divider
*7458: Dual 4-bit Decade Counter
*7459: Dual 4-bit Binary Counter
*7460: Dual 4-input Expander
*7461: Triple 3-input Expander
*7462: 3-2-2-3-Input Expander
*7463: Hex Current Sensing Interface Gates
*7464: 4-2-3-2-Input AND-OR-INVERT Gate
*7465: 4-2-3-2 Input AND-OR-INVERT Gate with open collector output
*7470: AND-Gated Positive Edge Triggered J-K Flip-Flop with Preset and Clear
*74H71: AND-OR-Gated J-K Master-Slave Flip-Flop with Preset
*74L71: AND-Gated R-S Master-Slave Flip-Flop with Preset and Clear
*7472: AND Gated J-K Master-Slave Flip-Flop with Preset and Clear
*7473: Dual J-K Flip-Flop with Clear
*7474: Dual D Positive Edge Triggered Flip-Flop with Preset and Clear
*7475: 4-bit Bistable Latch
*7476: Dual J-K Flip-Flop with Preset and Clear
*7477: 4-bit Bistable Latch
*74H78, 74L78: Dual J-K Flip-Flop with Preset, Common Clear, and Common Clock
*74LS78A: Dual Negative Edge Triggered J-K Flip-Flop with Preset, Common Clear, and Common Clock
*7479: Dual D Flip-Flop
*7480: Gated Full Adder
*7481: 16-bit Random Access Memory
*7482: 2-bit Binary Full Adder
*7483: 4-bit Binary Full Adder
*7484: 16-bit Random Access Memory
*7485: 4-bit Magnitude Comparator
*7486: Quad 2-input XOR gate
*7487: 4-bit True/Complement/Zero/One Element
*7488: 256-bit Read-only memory
*7489: 64-bit Random Access Memory
*7490: Decade Counter (separate Divide-by-2 and Divide-by-5 sections)
*7491: 8-bit Shift Register, Serial In, Serial Out, Gated Input
*7492: Divide-by-12 Counter (separate Divide-by-2 and Divide-by-6 sections)
*7493: 4-bit Binary Counter (separate Divide-by-2 and Divide-by-8 sections)
*7494: 4-bit Shift register, Dual Asynchronous Presets
*7495: 4-bit Shift register, Parallel In, Parallel Out, Serial Input, Bidirectional
*7496: 5-bit Parallel-In/Parallel-Out Shift register, Asynchronous Preset
*7497: Synchronous 6-bit Binary Rate Multiplier
*7498: 4-bit Data Selector/Storage Register
*7499: 4-bit Bidirectional Universal Shift register
*74100: Dual 4-Bit Bistable Latch
*74101: AND-OR-Gated J-K Negative-Edge-Triggered Flip-Flop with Preset
*74102: AND-Gated J-K Negative-Edge-Triggered Flip-Flop with Preset and Clear
*74103: Dual J-K Negative-Edge-Triggered Flip-Flop with Clear
*74104: J-K Master-Slave Flip-Flop
*74105: J-K Master-Slave Flip-Flop
*74106: Dual J-K Negative-Edge-Triggered Flip-Flop with Preset and Clear
*74107: Dual J-K Flip-Flop with Clear
*74107A: Dual J-K Negative-Edge-Triggered Flip-Flop with Clear
*74108: Dual J-K Negative-Edge-Triggered Flip-Flop with Preset, Common Clear, and Common Clock
*74109: Dual J-Not-K Positive-Edge-Triggered Flip-Flop with Clear and Preset
*74110: AND-Gated J-K Master-Slave Flip-Flop with Data Lockout
*74111: Dual J-K Master-Slave Flip-Flop with Data Lockout
*74112: Dual J-K Negative-Edge-Triggered Flip-Flop with Clear and Preset
*74113: Dual J-K Negative-Edge-Triggered Flip-Flop with Preset
*74114: Dual J-K Negative-Edge-Triggered Flip-Flop with Preset, Common Clock and Clear
*74116: Dual 4-bit Latches with Clear
*74118: Hex Set/Reset Latch
*74119: Hex Set/Reset Latch
*74120: Dual Pulse Synchronizer/Drivers
*74121: Monostable Multivibrator
*74122: Retriggerable Monostable Multivibrator with Clear
*74123: Dual Retriggerable Monostable Multivibrator with Clear
*74124: Dual Voltage-Controlled Oscillator
*74125: Quad Bus Buffer with Three-State Outputs, Negative Enable
*74126: Quad Bus Buffer with Three-State Outputs, Positive Enable
*74128: Quad 2-input NOR Line Driver
*74130: Quad 2-input AND gate Buffer with 30V open collector outputs
*74131: Quad 2-input AND gate Buffer with 15V open collector outputs
*74132: Quad 2-input NAND Schmitt trigger
*74133: 13-Input NAND Gate
*74134: 12-Input NAND Gate with Three-State Output
*74135: Quad Exclusive-OR/NOR Gate
*74136: Quad 2-Input XOR gate with open collector outputs
*74137: 3 to 8-line Decoder/Demultiplexer with Address Latch
*74138: 3 to 8-line Decoder/Demultiplexer
*74139: Dual 2 to 4-line Decoder/Demultiplexer
*74140: Dual 4-input NAND Line Driver
*74141: BCD to Decimal Decoder/Nixie Tube Driver
*74142: Decade Counter/Latch/Decoder/Nixie Tube Driver
*74143: Decade Counter/Latch/Decoder/7-segment Driver, 15 mA Constant Current
*74144: Decade Counter/Latch/Decoder/7-segment Driver, 15V open collector outputs
*74145: BCD to Decimal Decoder/Driver
*74147: 10-Line to 4-Line Priority Encoder
*74148: 8-Line to 3-Line Priority Encoder
*74150: 16-Line to 1-Line Data Selector/Multiplexer
*74151: 8-Line to 1-Line Data Selector/Multiplexer
*74152: 8-Line to 1-Line Data Selector/Multiplexer
*74153: Dual 4-Line to 1-Line Data Selector/Multiplexer
*74154: 4-Line to 16-Line Decoder/Demultiplexer
*74155: Dual 2-Line to 4-Line Decoder/Demultiplexer
*74156: Dual 2-Line to 4-Line Decoder/Demultiplexer with open collector outputs
*74157: Quad 2-Line to 1-Line Data Selector/Multiplexer, Noninverting
*74158: Quad 2-Line to 1-Line Data Selector/Multiplexer, Inverting
*74159: 4-Line to 16-Line Decoder/Demultiplexer with open collector outputs
*74160: Synchronous 4-bit Decade Counter with Asynchronous Clear
*74161: Synchronous 4-bit Binary Counter with Asynchronous Clear
*74162: Synchronous 4-bit Decade Counter with Synchronous Clear
*74163: Synchronous 4-bit Binary Counter with Synchronous Clear
*74164: 8-bit Parallel-Out Serial Shift Register with Asynchronous Clear
*74165: 8-bit Serial Shift Register, Parallel Load, Complementary Outputs
*74166: Parallel-Load 8-Bit Shift Register
*74167: Synchronous Decade Rate Multiplier
*74168: Synchronous 4-Bit Up/Down Decade Counter
*74169: Synchronous 4-Bit Up/Down Binary Counter
*74170: 4 by 4 Register File with open collector outputs
*74172: 16-Bit Multiple Port Register File with Three-State Outputs
*74173: Quad D Flip-Flop with Three-State Outputs
*74174: Hex D Flip-Flop with Common Clear
*74175: Quad D Edge-Triggered Flip-Flop with Complementary Outputs and Asynchronous Clear
*74176: Presettable Decade (Bi-Quinary) Counter/Latch
*74177: Presettable Binary Counter/Latch
*74178: 4-bit Parallel-Access Shift Register
*74179: 4-bit Parallel-Access Shift Register with Asynchronous Clear and Complementary Q_D Outputs
*74180: 9-bit Odd/Even Parity Generator and Checker
*74181: 4-bit Arithmetic Logic Unit and Function Generator
*74182: Lookahead Carry Generator
*74183: Dual Carry-Save Full Adder
*74184: BCD to Binary Converter
*74185: Binary to BCD Converter
*74186: 512-bit (64x8) Read Only Memory with open collector outputs
*74187: 1024-bit (256x4) Read Only Memory with open collector outputs
*74188: 256-bit (32x8) Programmable read-only memory with open collector outputs
*74189: 64-bit (16x4) RAM with Inverting Three-State Outputs
*74190: Synchronous Up/Down Decade Counter
*74191: Synchronous Up/Down Binary Counter
*74192: Synchronous Up/Down Decade Counter with Clear
*74193: Synchronous Up/Down Binary Counter with Clear
*74194: 4-bit Bidirectional Universal Shift Register
*74195: 4-bit Parallel-Access Shift Register
*74196: Presettable Decade Counter/Latch
*74197: Presettable Binary Counter/Latch
*74198: 8-bit Bidirectional Universal Shift Register
*74199: 8-bit Bidirectional Universal Shift Register with J-Not-K Serial Inputs
*74200: 256-bit RAM with Three-State Outputs
*74201: 256-bit (256x1) RAM with three-state outputs
*74206: 256-bit RAM with open collector outputs
*74209: 1024-bit (1024x1) RAM with three-state output
*74210: Octal Buffer
*74219: 64-bit (16x4) RAM with Noninverting three-state outputs
*74221: Dual Monostable Multivibrator with Schmitt trigger input
*74222: 16 by 4 Synchronous FIFO Memory with three-state outputs
*74224: 16 by 4 Synchronous FIFO Memory with three-state outputs
*74225: Asynchronous 16x5 FIFO Memory
*74226: 4-bit Parallel Latched Bus Transceiver with three-state outputs
*74230: Octal Buffer/Driver with three-state outputs
*74232: Quad NOR Schmitt trigger
*74237: 1-of-8 Decoder/Demultiplexer with Address Latch, Active High Outputs
*74238: 1-of-8 Decoder/Demultiplexer, Active High Outputs
*74239: Dual 2-of-4 Decoder/Demultiplexer, Active High Outputs
*74240: Octal Buffer with Inverted three-state outputs
*74241: Octal Buffer with Noninverted three-state outputs
*74242: Quad Bus Transceiver with Inverted three-state outputs
*74243: Quad Bus Transceiver with Noninverted three-state outputs
*74244: Octal Buffer with Noninverted three-state outputs
*74245: Octal Bus Transceiver with Noninverted three-state outputs
*74246: BCD to 7-segment Decoder/Driver with 30V open collector outputs
*74247: BCD to 7-segment Decoder/Driver with 15V open collector outputs
*74248: BCD to 7-segment Decoder/Driver with Internal Pull-up Outputs
*74249: BCD to 7-segment Decoder/Driver with open collector outputs
*74251: 8-line to 1-line Data Selector/Multiplexer with three-state outputs
*74253: Dual 4-line to 1-line Data Selector/Multiplexer with three-state outputs
*74255: Dual 4-bit Addressable Latch
*74256: Dual 4-bit Addressable Latch
*74257: Quad 2-line to 1-line Data Selector/Multiplexer with Noninverted three-state outputs
*74258: Quad 2-line to 1-line Data Selector/Multiplexer with Inverted three-state outputs
*74259: 8-bit Addressable Latch
*74260: Dual 5-Input NOR Gate
*74261: 2-bit by 4-bit Parallel Binary Multiplier
*74265: Quad Complementary Output Elements
*74266: Quad 2-Input XNOR gate with open collector Outputs
*74270: 2048-bit (512x4) Read Only Memory with open collector outputs
*74271: 2048-bit (256x8) Read Only Memory with open collector outputs
*74273: 8-bit Register with Reset
*74274: 4-bit by 4-bit Binary Multiplier
*74275: 7-bit Slice Wallace tree
*74276: Quad J-Not-K Edge-Triggered Flip-Flops with Separate Clocks, Common Preset and Clear
*74278: 4-bit Cascadeable Priority Registers with Latched Data Inputs
*74279: Quad Set-Reset Latch
*74280: 9-bit Odd/Even Parity Generator/Checker
*74281: 4-bit Parallel Binary Accumulator
*74283: 4-bit Binary Full adder
*74284: 4-bit by 4-bit Parallel Binary Multiplier (low order 4 bits of product)
*74285: 4-bit by 4-bit Parallel Binary Multiplier (high order 4 bits of product)
*74287: 1024-bit (256x4) Programmable read-only memory with three-state outputs
*74288: 256-bit (32x8) Programmable read-only memory with three-state outputs
*74289: 64-bit (16x4) RAM with open collector outputs
*74290: Decade Counter (separate divide-by-2 and divide-by-5 sections)
*74291: 4-bit Universal Shift register, Binary Up/Down Counter, Synchronous
*74292: Programmable Frequency Divider/Digital Timer
*74293: 4-bit Binary Counter (separate divide-by-2 and divide-by-8 sections)
*74294: Programmable Frequency Divider/Digital Timer
*74295: 4-Bit Bidirectional Register with Three-State Outputs
*74297: Digital Phase-Locked-Loop Filter
*74298: Quad 2-Input Multiplexer with Storage
*74299: 8-Bit Bidirectional Universal Shift/Storage Register with three-state outputs
*74301: 256-bit (256x1) RAM with open collector output
*74309: 1024-bit (1024x1) RAM with open collector output
*74310: Octal Buffer with Schmitt trigger inputs
*74314: 1024-bit RAM
*74320: Crystal controlled oscillator
*74322: 8-bit Shift Register with Sign Extend, three-state outputs
*74323: 8-bit Bidirectional Universal Shift/Storage Register with three-state outputs
*74324: Voltage Controlled Oscillator (or Crystal Controlled)
*74340: Octal Buffer with Schmitt trigger inputs and three-state inverted outputs
*74341: Octal Buffer with Schmitt trigger inputs and three-state noninverted outputs
*74344: Octal Buffer with Schmitt trigger inputs and three-state noninverted outputs
*74348: 8 to 3-line Priority Encoder with three-state outputs
*74350: 4-bit Shifter with three-state outputs
*74351: Dual 8-line to 1-line Data Selectors/Multiplexers with three-state outputs and 4 Common Data Inputs
*74352: Dual 4-line to 1-line Data Selectors/Multiplexers with Inverting Outputs
*74353: Dual 4-line to 1-line Data Selectors/Multiplexers with Inverting three-state outputs
*74354: 8 to 1-line Data Selector/Multiplexer with Transparent Latch, three-state outputs
*74356: 8 to 1-line Data Selector/Multiplexer with Edge-Triggered Register, three-state outputs
*74361: Bubble memory function timing generator
*74362: Four-Phase Clock Generator/Driver (aka TIM9904)
*74365: Hex Buffer with Noninverted three-state outputs
*74366: Hex Buffer with Inverted three-state outputs
*74367: Hex Buffer with Noninverted three-state outputs
*74368: Hex Buffer with Inverted three-state outputs
*74370: 2048-bit (512x4) Read-only memory with three-state outputs
*74371: 2048-bit (256x8) Read-only memory with three-state outputs
*74373: Octal Transparent Latch with three-state outputs
*74374: Octal Register with three-state outputs
*74375: Quad Bistable Latch
*74376: Quad J-Not-K Flip-flop with Common Clock and Common Clear
*74377: 8-bit Register with Clock Enable
*74378: 6-bit Register with Clock Enable
*74379: 4-bit Register with Clock Enable and Complementary Outputs
*74380: 8-bit Multifunction Register
*74381: 4-bit Arithmetic Logic Unit/Function Generator with Generate and Propagate Outputs
*74382: 4-bit Arithmetic Logic Unit/Function Generator with Ripple Carry and Overflow Outputs
*74385: Quad 4-bit Adder/Subtractor
*74386: Quad 2-Input XOR gate
*74387: 1024-bit (256x4) Programmable read-only memory with open collector outputs
*74388: 4-bit Register with Standard and Three-State Outputs (74LS388 is equivalent to AMD Am25LS2518 , functional equivalent to Am2918 and Am25S18)
*74390: Dual 4-bit Decade Counter
*74393: Dual 4-bit Binary Counter
*74395: 4-bit Universal Shift register with three-state outputs
*74398: Quad 2-input Multiplexers with Storage and Complementary Outputs
*74399: Quad 2-input Multiplexer with Storage
*74408: 8-bit Parity Tree
*74412: Multi-Mode Buffered 8-bit Latches with three-state outputs and Clear (74S412 is equivalent to Intel 8212, TI TIM8212)
*74423: Dual Retriggerable Monostable Multivibrator
*74424: Two-Phase Clock Generator/Driver (74LS424 is equivalent to Intel 8224, TI TIM8224)
*74425: Quad Gates with three-state outputs and Active Low Enables
*74426: Quad Gates with three-state outputs and Active High Enables
*74428: System Controller for 8080A (74S428 is equivalent to Intel 8228, TI TIM8228)
*74438: System Controller for 8080A (74S438 is equivalent to Intel 8238, TI TIM8238)
*74440: Quad Tridirectional Bus Transceiver with Noninverted open collector outputs
*74441: Quad Tridirectional Bus Transceiver with Inverted open collector outputs
*74442: Quad Tridirectional Bus Transceiver with Noninverted three-state outputs
*74443: Quad Tridirectional Bus Transceiver with Inverted three-state outputs
*74444: Quad Tridirectional Bus Transceiver with Inverted and Noninverted three-state outputs
*74448: Quad Tridirectional Bus Transceiver with Inverted and Noninverted open collector outputs
*74450: 16-to-1 Multiplexer with Complementary Outputs
*74451: Dual 8-to-1 Multiplexer
*74452: Dual Decade Counter, Synchronous
*74453: Dual Binary Counter, Synchronous (Motorola, "plain" TTL)
*74453: Quad 4-to-1 Multiplexer
*74454: Dual Decade Up/Down Counter, Synchronous, Preset Input
*74455: Dual Binary Up/Down Counter, Synchronous, Preset Input
*74456: NBCD (Natural Binary Coded Decimal) Adder
*74460: Bus Transfer Switch
*74461: 8-bit Presettable Binary Counter with three-state outputs
*74462: Fiber-Optic Link Transmitter
*74463: Fiber-Optic Link Receiver
*74465: Octal Buffer with three-state outputs
*74468: Dual MOS-to-TTL Level Converter
*74470: 2048-bit (256x8) Programmable read-only memory with open collector outputs
*74471: 2048-bit (256x8) Programmable read-only memory with three-state outputs
*74472: Programmable read-only memory with open collector outputs
*74473: Programmable read-only memory with three-state outputs
*74474: Programmable read-only memory with open collector outputs
*74475: Programmable read-only memory with three-state outputs
*74481: 4-bit Slice Processor Elements
*74482: 4-bit Slice Expandable Control Elements
*74484: BCD-to-Binary Converter (mask programmed SN74S371 ROM)
*74485: Binary-to-BCD Converter (mask programmed SN74S371 ROM)
*74490: Dual Decade Counter
*74491: 10-bit Binary Up/Down Counter with Limited Preset and three-state logic outputs
*74498: 8-bit Bidirectional Shift Register with Parallel Inputs and three-state outputs
*74508: 8-bit Multiplier/Divider
*74521: 8-bit Comparator
*74531: Octal Transparent Latch with 32 mA three-state outputs
*74532: Octal Register with 32 mA three-state outputs
*74533: Octal Transparent Latch with Inverting Three-state logic outputs
*74534: Octal Register with Inverting three-state outputs
*74535: Octal Transparent Latch with Inverting three-state outputs
*74536: Octal Register with Inverting 32 mA three-state outputs
*74537: BCD to Decimal Decoder with three-state outputs
*74538: 1 of 8 Decoder with three-state outputs
*74539: Dual 1 of 4 Decoder with three-state outputs
*74540: Inverting Octal Buffer with three-state outputs
*74541: Non-inverting Octal Buffer with three-state outputs
*74560: 4-bit Decade Counter with three-state outputs
*74561: 4-bit Binary Counter with three-state outputs
*74563: 8-bit D-Type Transparent Latch with Inverting three-state outputs
*74564: 8-bit D-Type Edge-Triggered Register with Inverting three-state outputs
*74568: Decade Up/Down Counter with three-state outputs
*74569: Binary Up/Down Counter with three-state outputs
*74573: Octal D-Type Transparent Latch with Three-State Outputs
*74574: Octal D-Type Edge-Triggered Flip-flop with Three-state outputs
*74575: Octal D-Type Flip-Flop with Synchronous Clear, Three-state outputs
*74576: Octal D-Type Flip-Flop with Inverting Three-state outputs
*74577: Octal D-Type Flip-Flop with Synchronous Clear, Inverting three-state outputs
*74580: Octal Transceiver/Latch with Inverting three-state outputs
*74589: 8-bit Shift Register with Input Latch, three-state outputs
*74590: 8-Bit Binary Counter with Output Registers and three-state outputs
*74592: 8-Bit Binary Counter with Input Registers
*74593: 8-Bit Binary Counter with Input Registers and three-state outputs
*74594: Serial-in Shift register with Output Latches
*74595: Serial-in Shift register with Output Registers
*74596: Serial-in Shift register with Output Registers and open collector outputs
*74597: Serial-out Shift register with Input Latches
*74598: Shift register with Input latches
*74600: Dynamic Memory Refresh Controller, Transparent and Burst Modes, for 4K or 16K DRAMs (74LS600 is equivalent to TI TIM99600)
*74601: Dynamic Memory Refresh Controller, Transparent and Burst Modes, for 64K DRAMs (74LS601 is equivalent to TI TIM99601)
*74602: Dynamic Memory Refresh Controller, Cycle Steal and Burst Modes, for 4K or 16K DRAMs (74LS602 is equivalent to TI TIM99602)
*74603: Dynamic Memory Refresh Controller, Cycle Steal and Burst Modes, for 64K DRAMs (74LS603 is equivalent to TI TIM99603)
*74604: Octal 2-input Multiplexer with Latch, High-Speed, with Three-state outputs (74LS604 is equivalent to TI TIM99604)
*74605: Octal 2-input Multiplexer with Latch, High-Speed, with open collector outputs (74LS605 is equivalent to TI TIM99605)
*74606: Octal 2-input Multiplexer with Latch, Glitch-Free, with Three-state outputs (74LS606 is equivalent to TI TIM99606)
*74607: Octal 2-input Multiplexer with Latch, Glitch-Free, with open collector outputs (74LS607 is equivalent to TI TIM99607)
*74608: Memory Cycle Controller (74LS608 is equivalent to TI TIM99608)
*74610: Memory Mapper, Latched, Three-state Outputs (74LS610 is equivalent to TI TIM99610)
*74611: Memory Mapper, Latched, open collector outputs (74LS611 is equivalent to TI TIM99611)
*74612: Memory Mapper, Three-state logic Outputs (74LS612 is equivalent to TI TIM99612)
*74613: Memory Mapper, open collector outputs (74LS613 is equivalent to TI TIM99613)
*74620: Octal Bus Transceiver, Inverting, Three-state Outputs
*74621: Octal Bus Transceiver, Noninverting, open collector outputs
*74622: Octal Bus Transceiver, Inverting, open collector outputs
*74623: Octal Bus Transceiver, Noninverting, Three-state outputs
*74624: Voltage-Controlled Oscillator with Enable Control, Range Control, Two-Phase Outputs
*74625: Dual Voltage-Controlled Oscillator with Two-Phase Outputs
*74626: Dual Voltage-Controlled Oscillator with Enable Control, Two-Phase Outputs
*74627: Dual Voltage-Controlled Oscillator
*74628: Voltage-Controlled Oscillator with Enable Control, Range Control, External Temperature Compensation, and Two-Phase Outputs
*74629: Dual Voltage-Controlled Oscillator with Enable Control, Range Control
*74630: 16-bit Error Detection and Correction (EDAC) with three-state outputs
*74631: 16-bit Error Detection and Correction (EDAC) with open collector outputs
*74632: 32-bit Error Detection and Correction (EDAC)
*74638: Octal Bus Transceiver with Inverting three-state outputs
*74639: Octal Bus Transceiver with Noninverting three-state outputs
*74640: Octal Bus Transceiver with Inverting three-state outputs
*74641: Octal Bus Transceiver with Noninverting open collector outputs
*74642: Octal Bus Transceiver with Inverting open collector outputs
*74643: Octal Bus Transceiver with Mix of Inverting and Noninverting three-state outputs
*74644: Octal Bus Transceiver with Mix of Inverting and Noninverting open collector outputs
*74645: Octal Bus Transceiver
*74646: Octal Bus Transceiver/Latch/Multiplexer with Noninverting three-state outputs
*74647: Octal Bus Transceiver/Latch/Multiplexer with Noninverting open collector outputs
*74648: Octal Bus Transceiver/Latch/Multiplexer with Inverting three-state outputs
*74649: Octal Bus Transceiver/Latch] /Multiplexer with Inverting open collector outputs
*74651: Octal Bus Transcevier/Register with Inverting three-state outputs
*74652: Octal Bus Transcevier/Register with Noninverting three-state outputs
*74653: Octal Bus Transcevier/Register with Inverting three-state and open collector outputs
*74654: Octal Bus Transcevier/Register with Noninverting three-state and open collector outputs
*74658: Octal Bus Transceiver with Parity, Inverting
*74659: Octal Bus Transceiver with Parity, Noninverting
*74664: Octal Bus Transcevier with Parity, Inverting
*74665: Octal Bus Transcevier with Parity, Noninverting
*74668: Synchronous 4-bit Decade Up/Down Counter
*74669: Synchronous 4-bit Binary Up/Down Counter
*74670: 4 by 4 Register File with three-state outputs
*74671: 4-bit Bidirectional Shift register/Latch /Multiplexer with three-state outputs
*74672: 4-bit Bidirectional Shift register/Latch/Multiplexer with three-state outputs
*74673: 16-bit Serial-in Serial-Out Shift register with Output Storage Registers, three-state outputs
*74674: 16-bit Parallel-in Serial-out Shift register with three-state outputs
*74677: 16-bit Address Comparator with Enable
*74678: 16-bit Address Comparator with Latch
*74679: 12-bit Address Comparator with Latch
*74680: 12-bit Address Comparator with Enable
*74681: 4-bit Parallel Binary Accumulator
*74682: 8-bit Magnitude Comparator
*74683: 8-bit Magnitude Comparator with open collector outputs
*74684: 8-bit Magnitude Comparator
*74685: 8-bit Magnitude Comparator with open collector outputs
*74686: 8-bit Magnitude Comparator with Enable
*74687: 8-bit Magnitude Comparator with Enable
*74688: 8-bit Magnitude Comparator
*74689: 8-bit Magnitude Comparator with open collector outputs
*74690: 4-bit Decimal Counter/Latch/Multiplexer with Asynchronous Reset, Three-State Outputs
*74691: 4-bit Binary Counter/Latch/Multiplexer with Asynchronous Reset, Three-State Outputs
*74692: 4-bit Decimal Counter/Latch/Multiplexer with Synchronous Reset, Three-State Outputs
*74693: 4-bit Binary Counter/Latch/Multiplexer with Synchronous Reset, Three-State Outputs
*74694: 4-bit Decimal Counter/Latch/Multiplexer with Synchronous and Asynchronous Resets, three-state outputs
*74695: 4-bit Binary Counter/Latch/Multiplexer with Synchronous and Asynchronous Resets, three-state outputs
*74696: 4-bit Decimal Counter/Register/Multiplexer with Asynchronous Reset, three-state outputs
*74697: 4-bit Binary Counter/Register/Multiplexer with Asynchronous Reset, three-state outputs
*74698: 4-bit Decimal Counter/Register/Multiplexer with Synchronous Reset, three-state outputs
*74699: 4-bit Binary Counter/Register/Multiplexer with Synchronous Reset, three-state outputs
*74716: Programmable Decade Counter (74LS716 is equivalent to Motorola MC4016)
*74718: Programmable Binary Counter (74LS718 is equivalent to Motorola MC4018)
*74724: Voltage Controlled Multivibrator
*74740: Octal Buffer/Line Driver, Inverting, three-state outputs
*74741: Octal Buffer/Line Driver, Noninverting, three-state outputs, Mixed enable polarity
*74744: Octal Buffer/Line Driver, Noninverting, three-state logic outputs
*74748: 8 to 3-line priority encoder
*74783: Synchronous Address Multiplexer (74LS783 is equivalent to Motorola MC6883)
*74790: Error Detection and Correction (EDAC)
*74795: Octal Buffer with Three-state logic outputs (74LS795 is equivalent to 81LS95)
*74796: Octal Buffer with Three-state logic outputs (74LS796 is equivalent to 81LS96)
*74797: Octal Buffer with Three-state logic outputs (74LS797 is equivalent to 81LS97)
*74798: Octal Buffer with Three-state logic outputs (74LS798 is equivalent to 81LS98)
*74804: Hex 2-input NAND Drivers
*74805: Hex 2-input NOR Drivers
*74808: Hex 2-input AND Drivers
*74832: Hex 2-input OR Drivers
*74848: 8 to 3-line Priority Encoder with three-state outputs
*74873: Octal Transparent Latch
*74874: Octal D-Type Flip-flop
*74876: Octal D-Type Flip-flop with Inverting Outputs
*74878: Dual 4-bit D-Type Flip-flop with Synchronous Clear, Noninverting three-state outputs
*74879: Dual 4-bit D-Type Flip-flop with Synchronous Clear, Inverting three-state outputs
*74880: Octal Transparent Latch with Inverting Outputs
*74881: 4-bit Arithmetic Logic Unit/Function Generator
*74882: 32-bit Lookahead Carry Generator
*742960: Error Detection and Correction (EDAC) (74F2960 is equivalent to AMD Am2960)
*742961: EDAC Bus Buffer, Inverting
*742962: EDAC Bus Buffer, Noninverting
*742968: Dynamic Memory Controller
*742969: Memory Timing Controller for use with EDAC
*742970: Memory Timing Controller for use without EDAC
*744020:
*744028: BCD to Decimal Decoder
*744040:
*744046:
*744050:
*744051:
*744060:
*744066:
*744075: Triple 3-input OR Gate
*744316:
*744511: BCD to 7-Segment Decoder
*744520: Dual 4-bit Synchronous Binary Counter
*744538:
*747266: Quad 2-input XNOR gate

Notes

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. 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.

TTL parts made by manufacturers such as Signetics, Motorola, Mullard and Siemens may have different numeric prefix and numbering series entirely.

A few alphabetic characters to designate a specific logic subfamily may immediately follow the 74 or 54 in thepart 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.

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

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

Some manufacturers designate some 4000 equivalent CMOS circuits with a 74 prefix, for example 74HC4066. See list of 4000 series integrated circuits if you need to identify such parts.

References

* 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
* [http://focus.ti.com/logic/docs/generalcontent.tsp?templateId=5985&navigationId=11372&path=templatedata/cm/general/data/findadevice Logic: Find A Device] , Texas Instruments Incorporated
* IC Master, 1976
* Schottky and Low-Power Schottky Data Book, Advanced Micro Devices, July 1978

External links

* Data sheets with pin diagrams for most ICs can be found at http://www.datasheetcatalog.com/