Decade Counter

Discussion in 'Homework Help' started by schaab18, Nov 1, 2012.

  1. schaab18

    Thread Starter New Member

    Nov 1, 2012
    2
    0
    So I'm working on Designing a decade counter. I saw a previous post made about this same problem and thanks to Mr. Chips got started headed in the right direction.

    So here's where I am at.

    Truth table for Decade Counter

    D C B A D+ C+ B+ A+ (D+ indicates the next state of D)
    0 0 0 0 0 0 0 1
    0 0 0 1 0 0 1 0
    ......
    .....
    1001- 0000
    1010-xxxx
    ....

    Then simplifying the K maps for A+, B+, C+, and D+ you get:

    A+=A'
    B+=BA' + D'B'A
    C+ = CB' + CA' + C'BA
    D+ = DA' + CBA

    Now it's time to put this into a circuit. I'm not really sure how to even start going about this. Besides the fact that it will require 4 Flipflops. Any help would be greatly appreciated
     
  2. schaab18

    Thread Starter New Member

    Nov 1, 2012
    2
    0
    Fed the logic of each into a D flip flop. Works well. Guess I didn't need help. Just had to think a little.
     
  3. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,367
    Glad we were able to help. Good luck on your studies.
     
  4. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    Good job on figuring it out and good job of searching the forum to get started on your work.
     
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