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Original question:

PGA460: Pull-up or pull-down resistor on SCLK pin.

PGA460: Pull-up or pull-down resistor on SCLK pin.

Kathy Yeh
Prodigy 20 points
Part Number: PGA460

Hi Everyone,

If I used asynchronous-UART, does TI also not recommend leaving the SCLK pin floating ?

  • 0
    TI__Mastermind 27950 points
    Hi Kathy,
    If synchronous-UART (SPI) mode is used, then SCLK will be connected to a clock pin. In all other communication modes including asynchronous-UART, one-wire UART, and Time Cammand Interface, the SCLK pin should be pulled-low to ground through a 10kOhm resistor.