mod 60 counter

Discussion in 'Homework Help' started by ernawati, Nov 15, 2014.

  1. ernawati

    Thread Starter New Member

    Nov 15, 2014
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    0
    I'm currently testing out a mod 60 counter using multisim. It suppose to replicate a stopwatch. However, my counter turned out to be slower when I change the frequency to 1 Hz. Do anyone know what's wrong with my circuit?
     
  2. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,714
    556
    It takes time for devices to change state. Over time this lag builds up.
     
  3. WBahn

    Moderator

    Mar 31, 2012
    19,153
    5,177
    I would imagine it was, oh, 50 times slower. Right? Can you look at your schematic and figure out why that might be? Consider the purpose of the INA pin of U4.
     
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