Semiconductor Logic Device
Cross-Reference

Here is a comprehensive cross-reference of TTL and CMOS chips that are readily available over the counter ( from such places as Maplin Electronics in the UK ).

Tables of both TTL and CMOS devices are provided along with tables grouping chips with the same functionality together.

The following tables are available ...

  • TTL Device Summary
  • CMOS Device Summary
  • NAND Gates
  • NOR Gates
  • AND Gates
  • OR Gates
  • XOR Gates
  • Buffers
  • Inverters
  • Interface Devices
  • Counters
  • Latches and Flip-Flops
  • Decoders
  • Encoders
  • Shift Registers
  • Computational Devices
  • Monostables and Multivibrators
  • Analogue Switches
  • Miscellaneous Functions

  • Please note that although the descriptions of the chips are taken from manufacturer's data sheets and other sources; these descriptions are only a brief indication of the generic functionality of that chip and a particular chip may have functionality that is slightly different to that actually required.

    Before using any device in the design or implementation of a project; always consult the original manufacturer's data sheet to ensure that a particular device is suitable for your purposes.

    E&OE.

  • TTL Device Summary

    Please click on a device number to see the table of devices that belong to the same group.

    Device Function Similar Devices
    7400 Quad 2-Input NAND Gate 7403 / 74132 / 4011 / 4093 / 40107
    7402 Quad 2-Input NOR Gate 4001
    7403 Quad 2-Input NAND Gate ( Open collector ) 7400 / 74132 / 4011 / 4093 / 40107
    7404 Hex Inverter 7405 / 7406 / 7414 / 4009 / 4049 / 4069
    7405 Hex Inverter ( Open collector ) 7404 / 7406 / 7414 / 4009 / 4049 / 4069
    7406 Hex Inverter ( Open collector ) 7404 / 7405 / 7414 / 4009 / 4049 / 4069
    7407 Hex Buffer 74240 / 74241 / 74244 / 74365 / 74541 / 4050 / 4503 / 40106
    7408 Quad 2-Input AND Gate 4081
    7410 Triple 3-Input NAND Gate 4023
    7411 Triple 3-Input AND Gate 4073
    7414 Hex Inverter ( Schmitt trigger ) 7404 / 7405 / 7406 / 4009 / 4049 / 4069
    7420 Dual 4-Input NAND Gate 4012
    7421 Dual 4-Input AND Gate 4082
    7427 Triple 3-Input NOR Gate 4025
    7430 8-Input NAND Gate 4068
    7432 Quad 2-Input OR Gate 4071
    7447 BCD to 7-Segment decoder ( 15v ) 7448 / 4056 / 4511
    7448 BCD to 7-Segment decoder 7447 / 4056 / 4511
    7473 Dual J-K Flip-Flop 7476 / 4027
    7474 Dual D-Type Flip-Flop 74175 / 74273 / 4013 / 40174
    7476 Dual J-K Flip-Flop 7473 / 4027
    7483 4-Bit Binary Full Adder 74283
    7485 4-Bit Magnitude Comparator 4063 / 4585
    7486 Quad 2-Input XOR Gate 74266 / 4030 / 4070 / 4077
    7490 Decade Counter 74390 / 4017 / 4510
    7493 4-Bit Binary Counter 74161 / 74163 / 74193 / 74393 / 4029
    74121 Monostable Multivibrator 74221 / 4098 / 4528
    74123 Dual Regtriggerable Monostable  
    74125 Quad Bus Buffer  
    74132 Quad 2-Input NAND Gate ( Schmitt trigger ) 7400 / 7403 / 4011 / 4093 / 40107
    74133 13-Input NAND Gate  
    74137 3 to 8 Line Decoder 74138
    74138 3 to 8 Line Decoder 74137
    74139 Dual 2 to 4 Line Decoder  
    74154 4 to 16 Line Decoder 4514
    74157 Quad 2 to 1 Line Select  
    74161 4-Bit Binary Counter 7493 / 74163 / 74193 / 74393 / 4029
    74163 4-Bit Binary Counter 7493 / 74161 / 74193 / 74393 / 4029
    74161 8-Bit Shift Register 74164 / 4014 / 4015
    74164 8-Bit Shift Register 74161 / 4014 / 4015
    74175 Quad D-Type Flip-Flop 7474 / 74273 / 4013 / 40174
    74193 Dual 4-Bit Binary Counter 7493 / 74161 / 74163 / 74393 / 4029
    74221 Dual Monostable Multivibrator 74121 / 4098 / 4528
    74240 Octal Buffer 7407 / 74241 / 74244 / 74365 / 74541 / 4050 / 4503 / 40106
    74241 Octal Buffer 7407 / 74240 / 74244 / 74365 / 74541 / 4050 / 4503 / 40106
    74244 Octal Buffer 7407 / 74240 / 74241 / 74365 / 74541 / 4050 / 4503 / 40106
    74245 Octal Bus Transceiver  
    74259 8-Bit Addressable Latch 4099
    74260 Dual 5-Input NOR Gate  
    74266 Quad 2-Input XOR Gate 7486 / 4030 / 4070 / 4077
    74273 Octal D-Type Flip-Flop 7474 / 74175 / 4013 / 40174
    74279 Octal S-R Latch  
    74283 4-Bit Binary Full Adder 7483
    74365 Hex Buffer 7407 / 74240 / 74241 / 74244 / 74541 / 4050 / 4503 / 40106
    74373 Octal D-Type Latch ( Inverting / Tri-State ) 74374 / 74533 / 74573 / 74574 / 4042
    74373 Octal D-Type Latch ( Inverting / Tri-State ) 74374 / 74533 / 74573 / 74574 / 4042
    74374 Octal D-Type Latch 74373 / 74533 / 74573 / 74574 / 4042
    74374 Octal D-Type Latch 74373 / 74533 / 74573 / 74574 / 4042
    74390 Dual Decade Counter 7490 / 4017 / 4510
    74393 Dual 4-Bit Binary Counter 7493 / 74161 / 74163 / 74193 / 4029
    74533 Octal D-Type Latch 74373 / 74374 / 74573 / 74574 / 4042
    74533 Octal D-Type Latch 74373 / 74374 / 74573 / 74574 / 4042
    74541 Octal Buffer 7407 / 74240 / 74241 / 74244 / 74365 / 4050 / 4503 / 40106
    74573 Octal D-Type Latch 74373 / 74374 / 74533 / 74574 / 4042
    74573 Octal D-Type Latch 74373 / 74374 / 74533 / 74574 / 4042
    74574 Octal D-Type Latch 74373 / 74374 / 74533 / 74573 / 4042
    74574 Octal D-Type Latch 74373 / 74374 / 74533 / 74573 / 4042
    74688 8-Bit Magnitude Comparator  

    CMOS Device Summary

    Please click on a device number to see the table of devices that belong to the same group.

    Device Function Similar Devices
    4001 Quad 2-Input NOR Gate 7402
    4002 Dual 4-Input NOR Gate  
    4007 Complementary Pair plus Inverter  
    4008 4-Bit Full Adder  
    4009 Hex Inverter 7404 / 7405 / 7406 / 7414 / 4049 / 4069
    4011 Quad 2-Input NAND Gate 7400 / 7403 / 74132 / 4093 / 40107
    4012 Dual 4-Input NAND Gate 7420
    4013 Dual D-Type Flip-Flop 7474 / 74175 / 74273 / 40174
    4014 8-Bit Shift Register 74161 / 74164 / 4015
    4015 8-Bit Shift Register 74161 / 74164 / 4014
    4016 4-Channel Analogue Multiplexor 4052
    4017 Decade Counter 7490 / 74390 / 4510
    4018 BCD Counter ( Presettable ) 4518
    4019 Quad AND/OR Select Gate  
    4020 14-Stage Ripple Counter  
    4021 8-Stage Shift Register 4094
    4022 Divide by 8 Counter  
    4023 Triple 3-Input NAND Gate 7410
    4024 7-Stage Ripple Counter  
    4025 Triple 3-Input NOR Gate 7427
    4026 7-Segment Display Decade Counter 4033
    4027 Dual J-K Flip-Flop ( Master / Slave ) 7473 / 7476
    4028 BCD to Decimal Decoder  
    4029 4-Bit Binary Counter 7493 / 74161 / 74163 / 74193 / 74393
    4030 Quad 2-Input XOR Gate 7486 / 74266 / 4070 / 4077
    4033 7-Segment Display Decade Counter 4026
    4035 4-Stage Shift register  
    4040 12-Stage Binary Counter  
    4042 Quad D-Type Latch ( Clocked ) 74373 / 74374 / 74533 / 74573 / 74574
    4043 Quad 3-Stage NOR R-S Latch  
    4044 Quad 3-Stage NAND R-S Latch  
    4046 Phase Locked Loop  
    4047 Multivibrator 4538
    4049 Hex Inverter 7404 / 7405 / 7406 / 7414 / 4009 / 4069
    4050 Hex Buffer 7407 / 74240 / 74241 / 74244 / 74365 / 74541 / 4503 / 40106
    4051 8-Channel Analogue Multiplexor  
    4052 Dual 4-Channel Analogue Multiplexor 4016
    4053 Triple 2-Channel Analogue Multiplexor  
    4056 BCD to 7-Segment Decoder 7447 / 7448 / 4511
    4060 14-Stage Binary Counter  
    4063 4-Bit Magnitude Comparator 7485 / 4585
    4066 Quad Bilateral Switch  
    4067 16-Channel Multiplexor  
    4068 8-Input NAND Gate 7430
    4069 Hex Inverter 7404 / 7405 / 7406 / 7414 / 4009 / 4049
    4070 Quad 2-Input XOR Gate 7486 / 74266 / 4030 / 4077
    4071 Quad 2-Input OR Gate 7432
    4072 Dual 4-Input OR Gate  
    4073 Triple 3-Input AND Gate 7411
    4075 Triple 3-Input OR Gate  
    4076 4-Bit D-Type Latch  
    4077 Quad 2-Input XOR Gate 7486 / 74266 / 4030 / 4070
    4078 8-Input NOR/OR  
    4081 Quad 2-Input AND Gate 7408
    4082 Dual 4-Input AND Gate 7421
    4093 Quad 2-Input NAND Gate ( Schmitt trigger ) 7400 / 7403 / 74132 / 4011 / 40107
    4094 8-Stage Shift Register 4021
    4098 Dual Monostable Multivibrator 74121 / 74221 / 4528
    4099 8-Bit Addressable Latch 74259
    4503 Hex Buffer 7407 / 74240 / 74241 / 74244 / 74365 / 74541 / 4050 / 40106
    4510 Decade Counter 7490 / 74390 / 4017
    4511 BCD to 7-Segment Decoder 7447 / 7448 / 4056
    4512 8-Channel Data Selector  
    4514 4 to 16 Line Decoder 74154
    4516 Binary Counter ( Presetable ) 4520
    4518 Dual BCD Counter 4018
    4520 Dual Binary Counter 4516
    4528 Dual Monostable Multivibrator 74121 / 74221 / 4098
    4532 8-Bit Priority Encoder  
    4538 Multivibrator 4047
    4541 Programmable Timer  
    4541 Oscillator  
    4555 Dual Binary to 1 of 4 Decoder  
    4585 4-Bit Magnitude Comparator 7485 / 4063
    40103 8-Stage Counter  
    40106 Hex Buffer ( Schmitt trigger ) 7407 / 74240 / 74241 / 74244 / 74365 / 74541 / 4050 / 4503
    40107 Dual 2-Input NAND Gate 7400 / 7403 / 74132 / 4011 / 4093
    40110 Up/Down Decade Counter  
    40174 Hex D-Type Flip-Flop 7474 / 74175 / 74273 / 4013

    NAND Gates

    Device Function Similar Devices
    7400 Quad 2-Input NAND Gate 7403 / 74132 / 4011 / 4093 / 40107
    7403 Quad 2-Input NAND Gate ( Open collector ) 7400 / 74132 / 4011 / 4093 / 40107
    7410 Triple 3-Input NAND Gate 4023
    7420 Dual 4-Input NAND Gate 4012
    7430 8-Input NAND Gate 4068
    74132 Quad 2-Input NAND Gate ( Schmitt trigger ) 7400 / 7403 / 4011 / 4093 / 40107
    74133 13-Input NAND Gate  
    4011 Quad 2-Input NAND Gate 7400 / 7403 / 74132 / 4093 / 40107
    4012 Dual 4-Input NAND Gate 7420
    4023 Triple 3-Input NAND Gate 7410
    4068 8-Input NAND Gate 7430
    4093 Quad 2-Input NAND Gate ( Schmitt trigger ) 7400 / 7403 / 74132 / 4011 / 40107
    40107 Dual 2-Input NAND Gate 7400 / 7403 / 74132 / 4011 / 4093

    NOR Gates

    Device Function Similar Devices
    7402 Quad 2-Input NOR Gate 4001
    7427 Triple 3-Input NOR Gate 4025
    74260 Dual 5-Input NOR Gate  
    4001 Quad 2-Input NOR Gate 7402
    4002 Dual 4-Input NOR Gate  
    4025 Triple 3-Input NOR Gate 7427

    AND Gates

    Device Function Similar Devices
    7408 Quad 2-Input AND Gate 4081
    7411 Triple 3-Input AND Gate 4073
    7421 Dual 4-Input AND Gate 4082
    4073 Triple 3-Input AND Gate 7411
    4081 Quad 2-Input AND Gate 7408
    4082 Dual 4-Input AND Gate 7421

    OR Gates

    Device Function Similar Devices
    7432 Quad 2-Input OR Gate 4071
    4071 Quad 2-Input OR Gate 7432
    4072 Dual 4-Input OR Gate  
    4075 Triple 3-Input OR Gate  

    XOR Gates

    Device Function Similar Devices
    7486 Quad 2-Input XOR Gate 74266 / 4030 / 4070 / 4077
    74266 Quad 2-Input XOR Gate 7486 / 4030 / 4070 / 4077
    4030 Quad 2-Input XOR Gate 7486 / 74266 / 4070 / 4077
    4070 Quad 2-Input XOR Gate 7486 / 74266 / 4030 / 4077
    4077 Quad 2-Input XOR Gate 7486 / 74266 / 4030 / 4070

    Buffers

    Device Function Similar Devices
    7407 Hex Buffer 74240 / 74241 / 74244 / 74365 / 74541 / 4050 / 4503 / 40106
    74365 Hex Buffer 7407 / 74240 / 74241 / 74244 / 74541 / 4050 / 4503 / 40106
    4050 Hex Buffer 7407 / 74240 / 74241 / 74244 / 74365 / 74541 / 4503 / 40106
    4503 Hex Buffer 7407 / 74240 / 74241 / 74244 / 74365 / 74541 / 4050 / 40106
    40106 Hex Buffer ( Scmitt trigger ) 7407 / 74240 / 74241 / 74244 / 74365 / 74541 / 4050 / 4503

    Inverters

    Device Function Similar Devices
    7404 Hex Inverter 7405 / 7406 / 7414 / 4009 / 4049 / 4069
    7405 Hex Inverter ( Open collector ) 7404 / 7406 / 7414 / 4009 / 4049 / 4069
    7406 Hex Inverter ( Open collector ) 7404 / 7405 / 7414 / 4009 / 4049 / 4069
    7414 Hex Inverter ( Schmitt trigger ) 7404 / 7405 / 7406 / 4009 / 4049 / 4069
    4009 Hex Inverter 7404 / 7405 / 7406 / 7414 / 4049 / 4069
    4049 Hex Inverter 7404 / 7405 / 7406 / 7414 / 4009 / 4069
    4069 Hex Inverter 7404 / 7405 / 7406 / 7414 / 4009 / 4049

    Interface Devices

    Device Function Similar Devices
    74125 Quad Bus Buffer  
    74240 Octal Buffer 7407 / 74241 / 74244 / 74365 / 74541 / 4050 / 4503 / 40106
    74241 Octal Buffer 7407 / 74240 / 74244 / 74365 / 74541 / 4050 / 4503 / 40106
    74244 Octal Buffer 7407 / 74240 / 74241 / 74365 / 74541 / 4050 / 4503 / 40106
    74245 Octal Bus Transceiver  
    74373 Octal D-Type Latch ( Inverting / Tri-State ) 74374 / 74533 / 74573 / 74574 / 4042
    74374 Octal D-Type Latch 74373 / 74533 / 74573 / 74574 / 4042
    74533 Octal D-Type Latch 74373 / 74374 / 74573 / 74574 / 4042
    74541 Octal Buffer 7407 / 74240 / 74241 / 74244 / 74365 / 4050 / 4503 / 40106
    74573 Octal D-Type Latch 74373 / 74374 / 74533 / 74574 / 4042
    74574 Octal D-Type Latch 74373 / 74374 / 74533 / 74573 / 4042

    Counters

    Device Function Similar Devices
    7490 Decade Counter 74390 / 4017 / 4510
    7493 4-Bit Binary Counter 74161 / 74163 / 74193 / 74393 / 4029
    74161 4-Bit Binary Counter 7493 / 74163 / 74193 / 74393 / 4029
    74163 4-Bit Binary Counter 7493 / 74161 / 74193 / 74393 / 4029
    74193 Dual 4-Bit Binary Counter 7493 / 74161 / 74163 / 74393 / 4029
    74390 Dual Decade Counter 7490 / 4017 / 4510
    74393 Dual 4-Bit Binary Counter 7493 / 74161 / 74163 / 74193 / 4029
    4017 Decade Counter 7490 / 74390 / 4510
    4018 BCD Counter ( Presettable ) 4518
    4020 14-Stage Ripple Counter  
    4022 Divide by 8 Counter  
    4024 7-Stage Ripple Counter  
    4029 4-Bit Binary Counter 7493 / 74161 / 74163 / 74193 / 74393
    4040 12-Stage Binary Counter  
    4060 14-Stage Binary Counter  
    4510 Decade Counter 7490 / 74390 / 4017
    4516 Binary Counter ( Presetable ) 4520
    4518 Dual BCD Counter 4018
    4520 Dual Binary Counter 4516
    40103 8-Stage Counter  
    40110 Up/Down Decade Counter  

    Latches and Flip-Flops

    Device Function Similar Devices
    7473 Dual J-K Flip-Flop 7476 / 4027
    7474 Dual D-Type Flip-Flop 74175 / 74273 / 4013 / 40174
    7476 Dual J-K Flip-Flop 7473 / 4027
    74175 Quad D-Type Flip-Flop 7474 / 74273 / 4013 / 40174
    74273 Octal D-Type Flip-Flop 7474 / 74175 / 4013 / 40174
    74279 Octal S-R Latch  
    74373 Octal D-Type Latch ( Inverting / Tri-State ) 74374 / 74533 / 74573 / 74574 / 4042
    74374 Octal D-Type Latch 74373 / 74533 / 74573 / 74574 / 4042
    74533 Octal D-Type Latch 74373 / 74374 / 74573 / 74574 / 4042
    74573 Octal D-Type Latch 74373 / 74374 / 74533 / 74574 / 4042
    74574 Octal D-Type Latch 74373 / 74374 / 74533 / 74573 / 4042
    4013 Dual D-Type Flip-Flop 7474 / 74175 / 74273 / 40174
    4027 Dual J-K Flip-Flop ( Master / Slave ) 7473 / 7476
    4042 Quad D-Type Latch ( Clocked ) 74373 / 74374 / 74533 / 74573 / 74574
    4043 Quad 3-Stage NOR R-S Latch  
    4044 Quad 3-Stage NAND R-S Latch  
    4076 4-Bit D-Type Latch  
    40174 Hex D-Type Flip-Flop 7474 / 74175 / 74273 / 4013

    Decoders

    Device Function Similar Devices
    7447 BCD to 7-Segment decoder ( 15v ) 7448 / 4056 / 4511
    7448 BCD to 7-Segment decoder 7447 / 4056 / 4511
    74137 3 to 8 Line Decoder 74138
    74138 3 to 8 Line Decoder 74137
    74139 Dual 2 to 4 Line Decoder  
    74154 4 to 16 Line Decoder 4514
    74259 8-Bit Addressable Latch 4099
    4026 7-Segment Display Decade Counter 4033
    4028 BCD to Decimal Decoder  
    4033 7-Segment Display Decade Counter 4026
    4056 BCD to 7-Segment Decoder 7447 / 7448 / 4511
    4067 16-Channel Multiplexor  
    4099 8-Bit Addressable Latch 74259
    4511 BCD to 7-Segment Decoder 7447 / 7448 / 4056
    4514 4 to 16 Line Decoder 74154
    4555 Dual Binary to 1 of 4 Decoder  

    Encoders

    Device Function Similar Devices
    74157 Quad 2 to 1 Line Select  
    4512 8-Channel Data Selector  

    Shift Registers

    Device Function Similar Devices
    74161 8-Bit Shift Register 74164 / 4014 / 4015
    74164 8-Bit Shift Register 74161 / 4014 / 4015
    4014 8-Bit Shift Register 74161 / 74164 / 4015
    4015 8-Bit Shift Register 74161 / 74164 / 4014
    4021 8-Stage Shift Register 4094
    4035 4-Stage Shift register  
    4094 8-Stage Shift Register 4021

    Computational Devices

    Device Function Similar Devices
    7483 4-Bit Binary Full Adder 74283
    7485 4-Bit Magnitude Comparator 4063 / 4585
    74283 4-Bit Binary Full Adder 7483
    74688 8-Bit Magnitude Comparator  
    4008 4-Bit Full Adder  
    4063 4-Bit Magnitude Comparator 7485 / 4585
    4532 8-Bit Priority Encoder  
    4585 4-Bit Magnitude Comparator 7485 / 4063

    Monostables and Multivibrators

    Device Function Similar Devices
    74121 Monostable Multivibrator 74221 / 4098 / 4528
    74123 Dual Regtriggerable Monostable  
    74221 Dual Monostable Multivibrator 74121 / 4098 / 4528
    4047 Multivibrator 4538
    4098 Dual Monostable Multivibrator 74121 / 74221 / 4528
    4528 Dual Monostable Multivibrator 74121 / 74221 / 4098
    4538 Multivibrator 4047
    4541 Programmable Timer  
    4541 Oscillator  

    Analogue Switches

    Device Function Similar Devices
    4016 4-Channel Analogue Multiplexor 4052
    4051 8-Channel Analogue Multiplexor  
    4052 Dual 4-Channel Analogue Multiplexor 4016
    4053 Triple 2-Channel Analogue Multiplexor  
    4066 Quad Bilateral Switch  

    Miscellaneous Functions

    Device Function Similar Devices
    4007 Complementary Pair plus Inverter  
    4019 Quad AND/OR Select Gate  
    4046 Phase Locked Loop  
    4078 8-Input NOR/OR