12 hour asynchronous clock

Discussion in 'General Electronics Chat' started by Gizachew worku, Jan 26, 2015.

  1. Gizachew worku

    Thread Starter New Member

    Jan 26, 2015
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    0
    please help me how can i design a 12 hour asynchronous clock using flip flops
     
  2. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    2,574
    230
    S0 one on-off 50% cycle every 12 hours...or a pulse every 12 Hr...or on 12 Hr and off 12 Hr? How accurate?

    Ken
     
  3. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,172
    397
    You get a whole bunch of flip-flops in a 4060 IC with an R-C oscillator thrown in. Or about 11 D type FF's ripple connected with a 1 min clock??
     
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