SCLA025B December   2019  – March 2021 SN74LVC1G08

 

  1. 1Trademarks
  2. 2Block Diagram
  3. 3Optimizing Communication with Wireless Interfaces
    1. 3.1 SDIO Voltage Translation
    2. 3.2 UART Voltage Translation
  4. 4Logic and Translation Use Cases
    1. 4.1 Logic Use Cases
      1. 4.1.1 Drive Indicator LEDs
      2. 4.1.2 Power Sequencing: Combine Power Good Signals
      3. 4.1.3 Debounce Switches and Buttons
      4. 4.1.4 Tamper Detection: Latching Alarm Circuit with Reset
    2. 4.2 Voltage Translation Use Cases
      1. 4.2.1 SPI Communication
      2. 4.2.2 SD Card Communication
  5. 5Recommended Logic and Translation Families for HVAC Gateways
    1. 5.1 AUP: Advanced Ultra-Low-Power CMOS Logic and Translation
    2. 5.2 AXC: Advanced eXtremely Low-Voltage CMOS Translation
    3. 5.3 LVC: Low-Voltage CMOS Logic and Translation
  6. 6Revision History

4.1.3 Debounce Switches and Buttons

GUID-D22D0495-3892-4401-908A-5C89503658D6-low.gifFigure 4-3 Using Logic to Prevent Multiple Triggers of a CMOS Input Due to Switch Bounce
  • Prevents multiple triggers of CMOS inputs due to switch bounce.
  • Works when the system controller is asleep.
  • Works without a system controller.
  • Reduces controller code complexity, no software debounce required.
  • See more about this use case in the Logic Minute video Debounce a Switch.
  • Find the right Schmitt-trigger buffer through the online parametric search tool.