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
- Trademarks
- 1Introduction
- 2Logic Overview
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3Logic Families
- 3.1 Legacy Logic
- 3.2 AC(T): Advanced CMOS
- 3.3 AHC(T): Advanced High-Speed CMOS
- 3.4 ALVC: Advanced Low-Voltage CMOS
- 3.5 AUC: Advanced Ultra Low Voltage CMOS
- 3.6 AUP: Advanced Ultra-Low Power
- 3.7 AVC: Advanced Very-Low-Voltage CMOS
- 3.8 HC(T): High-Speed CMOS
- 3.9 HCS: High-Speed CMOS with Schmitt-trigger inputs
- 3.10 LV-A(T): Low Voltage
- 3.11 LVxT: Low-Voltage CMOS Single Supply Translating Logic
- 3.12 LVC: Low-Voltage CMOS
- 3.13 LVT: Low-Voltage BiCMOS Technology
- 4Appendix A: Logic Packages
- 5Appendix B: Competitor Family Cross Reference
- 6Appendix C: Logic Part Number Naming Conventions
- 7Appendix D: Standard Logic Functions
- 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.
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