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Geoffrey1
Geoffrey1
Associate III
June 22, 2018
Question

stm32l432 wake up pin minimum pulse width ?

  • June 22, 2018
  • 1 reply
  • 544 views
Posted on June 22, 2018 at 22:11

The stm32l4 parts can exit standby/shutdown on either a rising or falling edge of a wake up pin ?  Are there any timing constraints ?   For example, the adxl362 generates 20 usec pulses in some modes.  Is this guaranteed to be sufficient ?  

Geoffrey

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    1 reply

    T J
    T J
    Senior III
    June 23, 2018
    Posted on June 23, 2018 at 02:09

    It is likely to be any pulse greater than 1uS will work... 1nS may not work. 20nS would probably be your limit.

    I believe this type of circuit is only waiting for a clock pulse from the input, there are no other clocks involved.

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