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Turning expression into circuit help?

  1. Sep 21, 2015 #1
    1. The problem statement, all variables and given/known data
    AC'D+ AB'D + BCD' + A'BC

    2. Relevant equations

    3. The attempt at a solution
    Would I start by inverting all the inputs? Would there be 3 Or's to this?
    I get from the truth table, to simplifying expressions with k-map, but I don't know how to turn it into a circuit.
    Can someone please help me?
  2. jcsd
  3. Sep 22, 2015 #2


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    Staff: Mentor

    It is likely that the problem specification has given you more requirements than you have mentioned here, and probably assumes you will simplify the Boolean expression before implementing it as logic gates. But to answer your question ....

    you could start with an OR gate that takes 4 inputs.
  4. Sep 30, 2015 #3


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    Science Advisor
    Homework Helper
    Gold Member

    Perhaps read up on the priority of logical operators? That might help you work out if you need AND gates followed by OR gates or the other way around. Starting with a few inverters is also reasonable.
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