up/down counter

Discussion in 'General Electronics Chat' started by afiremain, Oct 31, 2008.

  1. afiremain

    Thread Starter New Member

    Oct 31, 2008
    4
    0
    Does anyone know how to make an up down counter using J-K flip flops, or if it is possible?
     
  2. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
  3. saltykarp

    New Member

    Nov 10, 2008
    2
    0
    I am trying to create an 4-bit up/down counter that can count from 0-9, with a carryover bit.

    I need to use master-slave d-flip-flops, and I made my truth table with my next state logic. But I do not know how to put it all together with the flip flops. Please help.
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,535
    You can get the function in a chip, check out the CD 4029
     
Loading...