SCLA021A September   2019  – April 2021 SN74HC00 , SN74HCS08-Q1

 

  1.   Trademarks
  2. 1Block Diagram
  3. 2Optimizing Communication with Wireless Interfaces
    1. 2.1 SDIO Voltage Translation
    2. 2.2 SPI Voltage Translation
  4. 3Logic and Translation Use Cases
    1. 3.1 Logic Use Cases
      1. 3.1.1 Drive Indicator LEDs
      2. 3.1.2 Power Sequencing: Combine Power-Good Signals
      3. 3.1.3 Debounce Switches and Buttons
      4. 3.1.4 Latching Alarm Circuit with Reset
      5. 3.1.5 Buffer and Driver: Condition Digital Signals
    2. 3.2 Voltage Translation Use Cases
      1. 3.2.1 SPI Communication
      2. 3.2.2 GPIO Communication
      3. 3.2.3 I2C Communication
      4. 3.2.4 I2S Communication
  5. 4Recommended Logic and Translation Families for Smart Thermostats
    1. 4.1 AUP: Advanced Ultra-Low-Power CMOS Logic and Translation
    2. 4.2 AXC: Advanced eXtremely Low-Voltage CMOS Translation
    3. 4.3 LVC: Low-Voltage CMOS Logic and Translation
  6. 5Revision History

SDIO Voltage Translation

GUID-A4025B41-B2F0-4E44-B7F2-D104C4EF3224-low.gifFigure 2-1 Using Voltage Translation with an SD Card Communication Bus
  • Enable communication when devices have mismatched logic voltage levels.
  • Improve data rates over discrete translation solutions.
  • Protect controller while SD Card is not connected.
  • See online parametric search tool to find the right voltage level translator.