SDYU001AC June   2015  – November 2025 LSF0101 , LSF0102 , LSF0108 , SN74GTL2014 , SN74HC245 , SN74LS07 , SN74LV123A , SN74LV1T08 , SN74LV1T34 , SN74LV244AT , SN74LV245A , SN74LV4T125 , SN74LVC14A , SN74LVC1G08 , SN74LVC1G125 , SN74LVC245A , SN74LVTH125 , SN74LVTH16244A , SN74LVTH16245A , SN74LVTH245A

 

  1.   1
  2.   Trademarks
  3. 1Introduction
  4. 2Logic Overview
    1. 2.1 Logic Family Quick Reference
    2. 2.2 Comparison of Switching Standards
    3. 2.3 Automotive Logic
    4. 2.4 Ongoing Packaging Investment
    5. 2.5 TI's Programmable Logic Devices: TPLD
    6. 2.6 Function Table
  5. 3Logic Families
    1. 3.1  Legacy Logic
    2. 3.2  AC(T): Advanced CMOS
    3. 3.3  AHC(T): Advanced High-Speed CMOS
    4. 3.4  ALVC: Advanced Low-Voltage CMOS
    5. 3.5  AUC: Advanced Ultra Low Voltage CMOS
    6. 3.6  AUP: Advanced Ultra-Low Power
    7. 3.7  AVC: Advanced Very-Low-Voltage CMOS
    8. 3.8  HC(T): High-Speed CMOS
    9. 3.9  HCS: High-Speed CMOS with Schmitt-trigger inputs
    10. 3.10 LV-A(T): Low Voltage
    11. 3.11 LVxT: Low-Voltage CMOS Single Supply Translating Logic
    12. 3.12 LVC: Low-Voltage CMOS
    13. 3.13 LVT: Low-Voltage BiCMOS Technology
  6. 4Appendix A: Logic Packages
  7. 5Appendix B: Competitor Family Cross Reference
  8. 6Appendix C: Logic Part Number Naming Conventions
  9. 7Appendix D: Standard Logic Functions
  10. 8Revision History

7 Appendix D: Standard Logic Functions

Logic functions are typically indicated by a code in the part number. The below list provides a quick reference for commonly used functions. Open-collector and open-drain outputs are both listed as "open-drain" for brevity.

Configurable Logic

Gates

  • 00: 2-input NAND gates
    • 01: Open-drain
    • 03: Open-drain (alternate pinout)
    • 10: 3-Input
    • 20: 4-Input
    • 30: 8-Input
    • 38: Open-drain
  • 02: 2-Input NOR gates
    • 27: 3-Input
    • 33: Open-drain
  • 04: NOT gates (inverters)
    • 05: Open-drain
    • 06: Open-drain
    • 14: Schmitt-trigger
  • 08: AND gates
    • 09: Open-drain
    • 11: 3-input
    • 21: 4-input
    • 7001: Schmitt-trigger input
  • 32: OR gates
    • 7032: Schmitt-trigger
  • 86: 2-Input XOR gates
  • 7266: 2-Input XNOR gates
    • 266: open-drain

Flip-Flops, Latches, and Registers

  • 74: D-type flip-flops with preset and clear
    • 72: Negative-edge triggered
    • 273: Octal DFFs with shared clock and clear
    • 374: Octal DFFs with shared clock and 3-state outputs
    • 573: 374 function with flow-through pinout
  • 112: JK flip-flop, edge triggered
    • 107: Negative edge triggered
    • 109: Level triggered
  • 373: D-type latches with shared latch enable and 3-state outputs
    • 573: Flow-through pinout
  • 161: 4-Bit counter, synchronous and presettable, asynchronous clear
    • 163: Synchronous clear
  • 164: 8-Bit parallel-out shift register
  • 165: 8-Bit parallel-in shift register
    • 166: Clear instead of inverted output
  • 595: 8-Bit parallel-out shift register with output registers and 3-state outputs
    • 594: Output register clear instead of 3-state outputs
    • 596: Open-drain outputs
  • 299: 8-I/O universal shift register
  • 193: 4-Bit up/down counter, synchronous
  • 393: 4-bit ripple counter
  • 4020: 14-Bit counter
  • 4040: 12-Bit counter
  • 4060: 14-Bit counter with oscillator

Buffers, Drivers, and Transceivers

  • 07: Open-drain
  • 17: Schmitt-trigger
  • 34: Standard logic buffer
  • 125: 3-State outputs
    • 126: 3-State outputs, active-high output enable
  • 244: Bus buffers, banks of four with 3-state outputs
    • 240: Inverted outputs
    • 241: One active-low output enable and one active-high output enable
    • 540: 240 with flow-through pinout
    • 541: Flow-through pinout
    • 7541: 541 with open-drain outputs
    • 8541: 541 with Schmitt-trigger inputs
  • 245: Transceivers (selectable direction buffers, A to B or B to A)

Specialty Logic

  • 123: Monostable multivibrator (one-shot), retriggerable
    • 221: Monostable multivibrator (one-shot), non-retriggerable
    • See TPUL naming conventions for updated monostable multivibrator function numbering
  • 4046: Digital PLL
  • 684: 8-Bit magnitude comparator with equal and greater outputs
    • 682: Input pull-up resistors
    • 688: Only equal output