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CrazyAzn89
Lv 5
CrazyAzn89 asked in Science & MathematicsEngineering · 10 years ago

Clock Signals and Clocked Flip-Flops help?

A certain clocked FF has minimum ts = 20 ns and th = 5 ns. How long must the control inputs be stable prior to the active clock transition?

3 Answers

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  • Andrew
    Lv 6
    10 years ago
    Favourite answer

    ts is Setup Time, th is Hold Time

    As the names imply these are the lengths of time the signal must be stable for before and after the clock edge.

  • Rick
    Lv 7
    10 years ago

    20 ns

  • ?
    Lv 7
    10 years ago

    The control input must be stable for 20nS BEFORE the transition.

    It should remain stable for 5nS AFTER the transition.

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