implementing functions with multiplexers

Discussion in 'General Electronics Chat' started by Xufyan, May 27, 2011.

  1. Xufyan

    Thread Starter Member

    Aug 3, 2010
    114
    0
    Please look at the image below,
    is it the correct way to implement an equation ??
    i have just implemented the required numbers, (1,2,6,7) and ignored Do , D3, D4, D5, is it the correct way ?

    Truth table and equation is also attached

    [​IMG]


    The second question is,

    i have implemented the same equation in more easiest way but i don't know how to draw its internal circuit because 3 selection lines are now reduced to just two, so where to connect the third selection line (z) ??

    look at this ??

    [​IMG]

    when designing this circuit what should be the input to each AND gate ??
     
    Last edited: May 28, 2011
  2. Xufyan

    Thread Starter Member

    Aug 3, 2010
    114
    0
    somebody please reply here
     
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