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

3.9 HCS: High-Speed CMOS with Schmitt-trigger inputs

The HCS family was designed as an expansion to the HC family portfolio, maintaining compatibility with existing HC devices while integrating Schmitt-trigger inputs into every logic function. There are many benefits to Schmitt-trigger inputs including: greater tolerance to slow inputs, improved noise margins, and reduced power consumption.

Key Features Packaging Options
  • SOIC (D; 14, 16)
  • SOT-23-THN (DYY; 14, 16)
  • TSSOP (PW; 14, 16, 20)
  • VQFN (RKS; 20)
  • VSSOP (DGS; 20)
  • WQFN (BQA, BQB; 14, 16)
Applications
  • Hybrid and electric vehicle powertrain systems
  • Engine management
  • Residential air conditioner
  • Automation in HVAC systems
  • Major applicances
  • Infotainment and digital cluster
  • Industrial automation