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Implementing a Function Using Multiplexers

  1. Oct 21, 2014 #1
    1. The problem statement, all variables and given/known data

    OqmUGAE.png

    2. Relevant equations


    3. The attempt at a solution

    Here is my solution:

    dGbPzdw.jpg

    Is this the most efficient solution? I have to minimize the number of multiplexers I use so I think this is optimal, correct?
     
  2. jcsd
  3. Oct 23, 2014 #2
    Since you're allowed to use 4:1 multiplexers, there is a 3-gate solution. Your last gate (based on X3) is fine. Here's my final clue: How can a truth table be implemented with a multiplexer?
     
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