need a circuit diagram of 24 hour digital clock

Discussion in 'The Projects Forum' started by lenn24, Jan 23, 2009.

  1. lenn24

    lenn24 Thread Starter New Member

    Jan 23, 2009
    hi guyz..need some help..we have project regarding a 24-hour clock..we will use the asynchronous counter..we have problem when it comes to hours..pls help me..
  2. beenthere

    beenthere AAC Fanatic!

    Apr 20, 2004
    Missouri, USA (GMT -6)
    It sounds like you have been able to counts seconds correctly. Do the same thing - use an external AND gate to reset the hours counter string to zero when the count = 24.

    There are several types of asynchronous counters - some in binary and others with BCD outputs. There are also several different logic families. It helps to be specific about these things when asking for help.
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