Help with digital clock on multisim 10

Discussion in 'The Projects Forum' started by gillbensh, May 2, 2010.

  1. gillbensh

    Thread Starter New Member

    May 1, 2010
    2
    0
    hello all!
    i need to do a little project on multisim that combine those components:
    74LS48D and 74LS160D and some resistors.
    well, i have started my project but i reach a point that i dont know what to do. im attaching my file so you can see what i did until now.
    i need to build second, minutes and hours clock with 7-sigment.
    as you see in my file i did only the seconds, its only count until 9 sec.
    how to make it count to 60 sec?????
    and how to make the minutes and hours properly?
    thank you very much!!
    :)
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    One 'LS160 can only count from 0 - 9. Add another and you can count 0 - 99.
     
  3. gillbensh

    Thread Starter New Member

    May 1, 2010
    2
    0
    ok i know that, but how you make him count until 60 sec? after that 1 min should be appeared on the next 7-segment screen.
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    A few external gates can give an output at the count of 60 and even reset the counters to 1 at the next clock pulse by using the parallel load function. The same pulse can combine with the clock to count the next section (seconds -> minutes, or minutes -> hours).
     
    gillbensh likes this.
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