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SN74HC14: Comparing to SN74HCS14

Brian Wang0928
Genius 12500 points
Part Number: SN74HC14

Recently, there is a new Hex inverter with Schmitt-trigger inputs released. I'm curious about what's the major difference between SN74HC14 and SN74HCS14? Which one you recommend to use on motor drive application?

 

 

 

  • 0
    Guru 269770 points

    The HCS family improves on the HC family by adding Schmitt-trigger inputs to all devices, and by using a newer process that reduces power consumption.

    The SN74HC14 already has Schmitt triggers, and the CMOS power consumption probably does not matter when you have a motor. But HCS is the more modern family.

    The primary purpose of HCS is to be an improved but backwards-compatible upgrade for older designs that use HC. For a new design, it might be a better idea to use a family like AHC, LVC, AUP, or AUC, depending on the required voltage, speed, and drive strength. Please tell us about those.