74 Series Logic

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TTL 74xx Family Functions

No Description No Description
00 Quad 2-Input NAND Gate 01 Quad 2-Input NAND Gate (OC)
02 Quad 2-Input Positive NOR Gate 03 Quad 2-Input Positive NAND Gate
04 Hex Inverter 05 Hex Inverter (OC)
06 Hex Inverter Buffer/Driver (OC) 07 30V,40mA Hex Buffer Driver (OC)
08 Quad 2-Input AND Gate 09 Quad 2-Input Positive AND Gate (OC)
10 Triple 3-Input Positive NAND Gate 11 Triple 3-Input Positive AND Gate
14 Hex Inverting Schmitt Trigger 16 Hex Inverter Buffer/Driver (OC)
17 15V,40mA Hex Buffer Driver (OC) 20 Dual 4-Input Positive NAND Gate
21 Dual 4-Input Positive AND Gate 25 Dual 4-Input Positive NOR Gate
26 Quad 2-Input NAND Gate (OC) 27 Triple 3-Input NOR Gate
28 Quad 2-Input NOR Buffer 30 8-Input Positive NAND Gate
31 Delay Element 32 Quad 2-Input Positive OR Gate
33 Quad 2-Input NOR Buffer (OC) 37 Quad 2-Input Positive NAND Buffer
38 Quad 2-Input NAND Buffer (OC) 42 BCD To Decimal Decoder (1-of-10)
45 BCD To Decimal Decoder/Driver (OC) 46 BCD To 7 Segment Decoder/Driver (30V)
47 BCD To 7 Segment Decoder/Driver (15V) 48 BCD To 7 Segment Decoder/Driver
57 Dual 2 Wide 2-Input AND-OR Invert Gate 58 Dual AND-OR Gate
73 Dual JK Flip-Flop with Reset; Negative-Edge Trigger 74 Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger
75 Quad Bistable Transparent Latch 76 Dual JK Master Slave Flip-Flop
77 4-Bit Bistable Latch 83 4-Bit Binary Full Adder
85 4-Bit Magnitude Comparator 86 Quad 2-Input EXCLUSIVE-OR Gate
90 Decade Counter 93 4-Bit Binary Ripple Counter
97 6-Bit Asynchronous Binary Rate Multiplier 107 Dual JK Flip-Flop with Reset; Negative-Edge Trigger
109 Dual JK Flip-Flop with Set and Reset; Positive-Edge Trigger 112 Dual JK Flip-Flop with Set and Reset; Negative-Edge Trigger
121 One Short Multivibrator 122 Retriggerable Monostable Multivibrator
123 Dual Retriggerable Monostable Multivibrator with Reset 124 Dual Voltage Controlled Oscillator
125 Quad Buffer/Line Driver (3-State) 126 Quad Buffer/Line Driver (3-State)
128 Quad 2-Input NOR Line Driver 132 Quad 2-Input NAND Schmitt Trigger
133 13-Input NAND Gate 136 Quad Exclusive OR Gate (OC)
137 3-to-8 Line Decoder/Demultiplexer with Address Latches; Inv 138 3-to-8 Line Decoder/Demultiplexer; Inverting  238 is Non Inverting
139 Dual 2-to-4 Line Decoder/Demultiplexer 140 Dual 4-Input NAND Line Driver
145 BCD To Decimal Decoder/Driver (OC) 147 10-to-4 Line Priority Encoder
148 8-to-3 Priority Encoder 150 16-Input Multiplexer
151 8-Input Multiplexer 153 Dual 4-Input Multiplexer
154 4-to-16 Line Decoder/Demultiplexer Inverting
155 Dual 2-to-4 Demultiplexer
156 Dual 2-to-4 Demultiplexer (OC) 157 Quad 2-Input Multiplexer
158 Quad 2-Input Multiplexer; Inverting 159 4-to-16 Line Decoder
160 Presettable Synchronous BCD Decade Counter; Reset 161 Presettable Synchronous 4-Bit Binary Counter; Reset
163 Presettable Synchronous 4-Bit Binary Counter; Reset 164 8-Bit Serial-In/Parallel-Out Shift Register
165 8-Bit Parallel-In/Serial-Out Shift Register 166 8-Bit Parallel-In/Serial-Out Shift Register
169 Synchronous 4-Bit Binary Up/Down Counter 173 Quad D-Type Flip-Flop; Positive-Edge Trigger (3-State)
174 Hex D-Type Flip-Flop with Reset; Positive-Edge Trigger 175 Quad D-Type Flip-Flop with Reset; Positive-Edge Trigger
189 64-Bit Bipolar Scratch Pad Memory 190 Synchronous Decade Up/Down Counter
191 Presettable Synchronous 4-Bit Binary Up/Down Counter 193 Presettable Synchronous 4-Bit Binary Up/Down Counter
194 4-Bit Bidirectional Universal Shift Register 195 4-Bit Parallel Access Shift Register
221 Dual Non-Retriggerable Monostable Multivibrator with Reset 237 3-to-8 Line Decoder/Demultiplexer with Address Latches
238 3-to-8 Line Decoder/Demultiplexer NonInverting  138 is Inverting 240 Octal Buffer/Line Driver; Inverting (3-State)
241 Octal Buffer/Line Driver (3-State) 243 Quad Bus Transceiver (3-State)
244 Octal Buffer/Line Driver (3-State) 245 Octal Bus Transceiver (3-State)
251 8-Input Multiplexer (3-State) 253 Dual 4-Input Multiplexer (3-State)
257 Quad 2-Input Multiplexer (3-State) 258 Quad 2-Input Multiplexer; Inverting (3-State)
259 8-Bit Addressable Latch 260 Dual 5-Bit Input NOR Gate
269 8-Bit Up/Down Counter 273 Octal D-Type Flip-Flop with Reset; Positive-Edge Trigger
279 Quad R-S Latch 280 9-Bit Odd/Even Parity Generator/Checker
283 4-Bit Binary Full Adder with Fast Carry 294 16-Bit Programmable Frequency Divider
297 Digital Phase Locked Loop 299 8-Bit Universal Shift Register (3-State)
321 Crystal Oscillator 365 Hex Buffer/Line Driver (3-State)
366 Hex Buffer/Line Driver; Inverting (3-State) 367 Hex Buffer/Line Driver (3-State)
368 Hex Buffer/Line Driver; Inverting (3-State) 373 Octal D-Type Transparent Latch (3-State)
374 Octal D-Type Flip-Flop; Positive Edge-Trigger (3-State) 375 Quad Latch
377 Octal D-Type Flip-Flop with Data Enable; Positive-Edge Trigger 378 Hex D-Type Flip-Flop with Enable
390 Dual Decade Ripple Counter 393 Dual 4-Bit Binary Ripple Counter
399 Quad 2-Input Multiplexer 423 Dual Retriggerable Monostable Multivibrator with Reset
465 Octal Buffer Tri-State Output 521 Octal Comparator
534 Octal D-Type Flip-Flop; Positive Edge-Trigger; Inverting (3-State) 540 Octal Buffer/Line Driver; Inverting (3-State)
541 Octal Buffer/Line Driver (3-State) 543 Octal Registered Transceiver
563 Octal D-Type Transparent Latch; Inverting (3-State) 564 Octal D-Type Flip-Flop; Positive-Edge Trigger; Inverting (3-State)
569 Synchronous Didirectional Binary Counter 573 Octal D-Type Transparent Latch (3-State)
574 Octal D-Type Flip-Flop; Positive Edge-Trigger (3-State) 579 8-Bit Up/Down Counter
580 Inverting Octal D-Type Latch 589 8-Bit Shift Register with Input Latch
592 8-Bit Binary Counter with Input Register 593 8-Bit Binary Counter O/P Register TS I/O
594 8-Bit Shift Register with Output Register 595 8-Bit Ser-In/Ser Or Par-Out Shift Register with Out Latches (3-State)
597 8-Bit Shift Register with Input Flip-Flops 604 16 to 8 Multiplexer (High Speed)
624 Voltage Controlled Oscillator 628 Voltage Controlled Oscillator
629 Voltage Controlled Oscillator 640 Octal Bus Transceiver; Inverting (3-State)
641 Octal Bus Transceiver 645 Octal Bus Transceiver
646 Octal Bus Transceiver/Register (3-State) 652 Octal Bus Transceiver/Register (3-State)
670 4 x 4 Register File (3-State) 674 16-Bit Shift Register 16-Bit Parallel Output
682 8-Bit Magnitude Comparator 684 8-Bit Magnitude Comparator
688 8-Bit Magnitude Comparator 821 10-Bit D-Type Flip-Flop
825 8-Bit D-Type Flip-Flop 827 8-Bit Buffer/Line Driver
841 10-Bit Transparent Latch 843 9-Bit Transparent Latch
902 Hex Buffer (TTL Interface) 906 Open Drain Buffer (Active Pull Down)
908 Dual High Voltage CMOS Driver 912 Display Controller 6 Digit 8 Segment
914 Hex Schmitt Trigger External Voltage Inputs 922 16 Key Keyboard Encoder
923 20 Key Keyboard Encoder 925 4 Digit Counter Multiplexed 7 Segment Drive
2244 Octal Tri-State Buffer with Resistor 2245 Octal Tri-State Transceiver with Resistor
3245 Octal Tri-State Translating Transceiver 3257 Quad 2:1 Mux/Demux Bus Switch
3383 Octal Bus Exchange Switch 3384 10-Bit Bus Switch
4002 Dual 4-Input NOR Gate 4015 Dual 4-Bit Serial-In/Parallel-Out Shift Register
4016 Quad Bilateral Switches 4017 Johnson Decade Counter with 10 Decoded Outputs
4020 14-Stage Binary Ripple Counter 4024 7-Stage Binary Ripple Counter
4040 12-Stage Binary Ripple Counter 4046 Phase Locked Loop
4049 Hex Inverting High-to-Low Level Shifter 4050 Hex High-to-Low Level Shifter
4051 8-Channel Analog Multiplexer/Demultiplexer 4052 Dual 4-Channel Analog Multiplexer/Demultiplexer
4053 Triple 2-Channel Analog Multiplexer/Demultiplexer 4059 Programmable Divide-By-N Counter
4060 14-Stage Binary Ripple Counter with Oscillator 4066 Quad Bilateral Switches
4067 16-Channel Analog Multiplexer/Demultiplexer 4075 Triple 3-Input OR Gate
4078 8-Input NOR/OR Gate 4094 8-Stage Shift-and-Store Bus Register
4245 Octal Tri-State Translating Transceiver 4316 Quad Bilateral Switches
4351 8-Channel Analog Multiplexer/Demultiplexer with Latch 4353 Triple 2-Channel Analog Multiplexer/Demultiplexer with Latch
4511 BCD To 7-Segment Latch/Decoder/Driver 4514 4-to-16 Line Decoder/Demultiplexer with Input Latches
4515 4-to-16 Line Decoder/Demultiplexer with Input Latches; Inverting 4518 Dual Synchronous Up Counter
4520 Dual 4-Bit Synchronous Binary Counter 4538 Dual Retriggerable Precision Monostable Multivibrator
5555 Programmable Delay Timer with Oscillator 6323 Programmable Ripple Counter with Oscillator (3-State)
7014 Hex Non-Inverting Precision Schmitt-Trigger 7030 9-Bit x 64-Word FIFO Register (3-State)
7046 Phase-Locked-Loop with Lock Detector 7266 Quad 2-Input EXCLUSIVE-NOR Gate
7403 4-Bit x 64-Word FIFO Register (3-State) 7540 Octal Schmitt Trigger Buffer/Line Driver; Inverting (3-State)
7541 Octal Schmitt Trigger Buffer/Line Driver (3-State) 7731 Quad 64-Bit Static Shift Register
9114 Nine Wide Schmitt Trigger Buffer; Open Drain Outputs; Inverting 9115 Nine Wide Schmitt Trigger Buffer; Open Drain Outputs
9323 Programmable Ripple Counter with Oscillator (3-State) 22106 8x8 Crosspoint Switch
40103 8-Bit Synchronous Binary Down Counter 40105 4-Bit x 16-Word FIFO Register

 

: The 7400 series of TTL integrated circuit SSI devices were historically important as the first widespread family of IC devices. ... A Motorola 68000-based computer with various TTL chips. ... Optical Microscope image of an integrated circuit showing defects in the aluminium layer deposition. ...

  • 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 39V 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
  • 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)
  • 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
  • 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 Exclusive-OR Gate
  • 7487: 4-bit True/Complement/Zero/One Element
  • 7488: 256-bit Read Only Memory
  • 7489: 64-bit Read/Write 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 Netgative-Edge-Triggered Flip-Flop with Clear
  • 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
  • 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
  • 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 Exclusive-OR 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: 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 Qd 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) Random Access Memory 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 Random Access Memory with Three-State Outputs
  • 74201: 256-bit (256x1) Random Access Memory with Three-State Outputs
  • 74206: 256-bit Random Access Memory with Open-Collector Outputs
  • 74210: Octal Buffer
  • 74219: 64-bit (16x4) Random Access Memory with Noninverting Three-State Outputs
  • 74221: Dual Monostable Multivibrator with Schmitt Trigger Input
  • 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
  • 74232: Quad NOR Shmitt 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
  • 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 Exclusive-NOR 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 Latches
  • 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) Random Access Memory with Open Collector Outputs
  • 74290: Decade Counter (separate divide-by-2 and divide-by-5 sections)
  • 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
  • 74310: Octal Buffer with Schmitt Trigger Inputs
  • 74322: 8-bit Shift Register with Sign Extend, Three-State Outputs
  • 74323: 8-bit Bidirectional Universal Shift/Storage Register with Three-State Outputs
  • 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
  • 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-Flops 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 Exclusive-OR Gate
  • 74387: 1024-bit (256x4) Programmable Read Only Memory with Open Collector Outputs
  • 74390: Dual 4-bit Decade Counter
  • 74393: Dual 4-bit Binary Counter
  • 74395: 4-bit Universal Shift Registers with Three-State Outputs
  • 74398: Quad 2-input Multiplexers with Storage and Complementary Outputs
  • 74399: Quad 2-input Multiplexer with Storage
  • 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
  • 74453: Quad 4-to-1 Multiplexer
  • 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
  • 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 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 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: Octal Buffer with Three-State Outputs
  • 74541: 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 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 Registser/Latch/Multiplexer with Three-State Outputs
  • 74672: 4-bit Bidirectional Shift Registser/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 Registers with Three-State Outputs
  • 74677: 16-bit Address Comparator with Enable
  • 74679: 12-bit Address Comparator with Latch
  • 74680: 12-bit Address Comparator with Enable
  • 74678: 16-bit Address Comparator with Latch
  • 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 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 Outputs (74LS795 is equivalent to 81LS95)
  • 74796: Octal Buffer with Three-State Outputs (74LS796 is equivalent to 81LS96)
  • 74797: Octal Buffer with Three-State Outputs (74LS797 is equivalent to 81LS97)
  • 74798: Octal Buffer with Three-State 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

 


 

 

Family Description Family Description
74 True TTL 74L Low power
74S Schottky 74H High speed
74LS Low power - Schottky 74AS Advanced - Schottky
74ALS Advanced - Low power - Schottky 74F(AST) Fast - (Advanced - Schottky)
74C CMOS...................check Vcc levels 74HC (U) High speed - CMOS (Unbuffered output)
74HCT High speed - CMOS - TTL inputs 74AHC Advanced - High speed - CMOS
74AHCT Advanced - High speed - CMOS - TTL inputs 74FCT (-A,-T,-AT) Fast - CMOS - TTL inputs (speed variations)
74AC Advanced - CMOS 74ACT Advanced - CMOS - TTL inputs
74FACT AC, ACT (Q) series 74ACQ Advanced - CMOS - Quiet outputs
74ACTQ Advanced - CMOS - TTL inputs - Quiet outputs
 
Bus Driver Families
74ABT Advanced - BiCMOS - Technology 74ABTE ABT - Enhanced Transceiver Logic
74ABTH Advanced - BiCMOS - Technology - bus Hold 74BCT BiCMOS - TTL inputs
74BTL Backplane - Transceiver - Logic (BiCMOS) 74FB Futurebus+
74GTL Gunning - Transceiver - Logic 74GTLP GTL - Plus
Low Voltage Families
74ALB Advanced - Low Voltage - BiCMOS 74LV (U) Low - Voltage (Unbuffered output) (CMOS)
74LVC (R) (U) LV - CMOS (damping Resistor)(Unbuffered output) 74LVCH Low - Voltage - CMOS - bus Hold
74ALVC Advanced - Low - Voltage - CMOS 74LVT (R) (U) LV - TTL (damping Resistor(Unbuffered output) (BiCMOS)
74LVTZ Low - Voltage - TTL - High Impedance power-up 74ALVC (R) ALV CMOS (bus Hold) (damping Resistor)
74ALVCH Advanced - Low - Voltage - CMOS - bus Hold 74LCX LV - CMOS (operates with 3v and 5v supplies)
74VCX LV - CMOS (operates with 1.8v and 3.6v supplies
 

 


 

LVC Family is optimised for 3.3v, 5v input tolerant, 3.5ns typical propagation, can drive 24mA

HCT has VIH of 2V so useful for interfacing 3.3v to 5v

HC & LVC have 5V tolerant inputs useful for interfacing 5v to 3.3v

 

4-to-16 Line Decoder