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SN74LVC1G32: debounce time

Tommy Tzeng
Genius 5085 points
Part Number: SN74LVC1G32
Other Parts Discussed in Thread: SN74LVC1G97

Hi Sir,

With SSD application, SN74LVC1G32 is applied on power disable function.
we'd like to debounce time of input signal.For example, <1us signal drop would not trigger SN74LVC1G32 high/low. can we do it?

  • 0
    Guru 271250 points

    This is typically done with an R-C low-pass filter in the input. For a time constant of 2.2 µs, try 22 kΩ and 100 pF.

    To handle the slow edges of the filtered signal, use an OR gate with Schmitt-trigger inputs, i.e., SN74LVC1G97.