abt preset and clear

Discussion in 'Homework Help' started by vvkannan, Sep 13, 2008.

  1. vvkannan

    Thread Starter Active Member

    Aug 9, 2008
    138
    11
    i cant understand the concepts of preset and clear.
    if activating prest r clear drives the circuit to set r reset state then y do we need other synchronous inputs r clock pulse in the circuit.
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Preset and clear controls are just alternate ways of forcing the latch into a known state such as at power-up.

    hgmjr
     
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