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Asynchronous counters

  1. Sep 25, 2009 #1
    Hi everyone

    I built a 4 bit asynchronous counter:
    ] th_64901_1253864766223_122_211lo.jpe [/URL]

    , the sequence is
    1,2,3,4 right up to F and then 0,1,2,3....

    My question is why doesnt the up counter start with 0...can someone explain it to me.Is this the correct sequence for a asynchrbous up counter.

    Thank you & regards

  2. jcsd
  3. Oct 5, 2009 #2
    Your drawing is toot small to make out.

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