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Why low active?

Discussion in 'Hardware' started by jackshowme, Mar 5, 2004.

  1. jackshowme

    jackshowme Guest

    We can find some control signals in circuit are low active, but the
    others are high active. Low active? High active? Why? It is for power
    comsuption?
    for example: We may design a circuit to met the requirement:
    if SigA is '1' then do_something.. (This is high active)
    if SigB is '0' then do_something.. (This is low active)
     
    jackshowme, Mar 5, 2004
    #1
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