The minimum time following the deassertion of an asynchronous input to a flip-flop before an active clock edge is called the ______ ?

The minimum time following the deassertion of an asynchronous input to a flip-flop before an active clock edge is called the ______ .

 A. recovery time 

 B. pulse width 

 C. setup time 

 D. hold time

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  • 2 months ago

    deassertion ?? first time I have seen this term. I'll assume it means return to zero.

    I think that is the setup time, time between the data input changing and the clock. this applies for data 1 to 0 or 0 to 1.

    for a 75AS74 that is 4.5 ns, that is, the data must be stable 4.5 ns before the clock. if it changes after that, or before the clock, you will have problems with "teeter-totter" where the output may change a long time later.

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