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

1 Introduction

As electronic systems become increasingly complex, designers face growing challenges in achieving excellent performance, power efficiency, and cost-effectiveness. As the world leader in logic, Texas Instruments (TI) provides a comprehensive portfolio of logic functions and technologies designed to address these demands. Our portfolio is built around advanced complementary metal-oxide semiconductor (CMOS) families – including HC, HCS, LVC, AUP, AHC(T), AC(T), and LV-A – offering an excellent balance of performance, power, and price for a wide range of applications.

We are committed to supporting our customers throughout the entire product lifecycle. While actively innovating with leading-edge CMOS technologies, we also understand the need to support existing designs utilizing mature logic families such as LS. Although older technologies like TTL, F, S, AS, ALS, and CD4000 remain available for specific requirements, our primary focus is on providing the latest CMOS technologies that enable smaller, faster, and more power-efficient designs.

Finding the right logic component can be challenging. If you are looking for a TI replacement product for an existing competitor part, please utilize our online cross-reference tool.

For a quick overview of our entire logic product offering, please visit our online logic landing page online logic landing page.

Today's applications demand greater functionality, smaller size, and lower power consumption. TI's goal is to help designers easily find the best logic technology or function, with a focus on delivering benchmark performance, reliability, and worldwide support. Our commitment to innovation and customer support makes TI a trusted partner for logic products, from leading-edge to mature technologies.

For technical support and to connect with the TI community, please post to the Engineer to Engineer (E2E) forums.

The E2E forums also host in-depth Frequently Asked Questions (FAQ) pages for logic and a separate page for FAQs on TPLD products FAQs on TPLD products.

Logic Family General Speed Comparison Figure 1-1 Logic Family General Speed Comparison