74192 from decade to mod 12 counter

Discussion in 'Homework Help' started by borecky, Jun 5, 2013.

  1. borecky

    Thread Starter New Member

    Jun 5, 2013
    1
    0
    Hello guys!
    I have to do counter mod 12 using 74192. I read some advices in other thread but i got an problem.
    0 0001 .. 01
    0 0010 .. 02
    0 0011 .. 03
    0 0100 .. 04
    0 0101 .. 05
    0 0110 .. 06
    0 0111 .. 07
    0 1000 .. 08
    0 1001 .. 09
    1 0000 .. 10 .. Note 1
    0 0001 .. 01
    0 0010 .. 02
    0 0011 .. 03 ..

    Carry is on H only a short moment.
    Can anybody help me?
     
    Last edited: Jun 5, 2013
  2. MrCarlos

    Active Member

    Jan 2, 2010
    400
    134
    Holo borecky

    Help You about what ??

    If you're planning a MOD 12 counter you would need two 74LS192 chips connected in cascade.
    And really the carry is L only for a short period of time if we are talking about the 74LS192.
     
  3. LDC3

    Active Member

    Apr 27, 2013
    920
    160
    Instead of using a BCD counter, why not use a binary counter (it will count up to 15).
     
  4. WBahn

    Moderator

    Mar 31, 2012
    17,748
    4,796
    You say that you HAVE to do a mod 12 counter using a 74192. Why? Is it simply a requirement of the assignment? What other components are you allowed to use?
     
  5. MrChips

    Moderator

    Oct 2, 2009
    12,442
    3,361
    Maybe there is a mistake in the assignment. Perhaps the assignment is to use a 74193 to make a mod-12 counter.
     
  6. WBahn

    Moderator

    Mar 31, 2012
    17,748
    4,796
    That's what I'm hoping. But, it's possible that they get to use two '192 counters and the point is to work with multi-digit BCD modulo counters. Hopefully the OP will clarify.
     
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