MUX problem question...

Discussion in 'Homework Help' started by blackcoatman, Jun 24, 2007.

  1. blackcoatman

    Thread Starter New Member

    Jun 24, 2007
    1
    0
    I am typing a question from a past exams paper in our school:

    "Choose the proper Multiplexer for solving the equation: F=Σ(1,3,5,7,9,11). Give the table of truth of the multiplexer, as well as a drawing of the circuit."

    I guess a 4bit MUX and consecutively selecting each of the 6 numbers above in their binary form to let the MUX give them as an output does the trick, but what then? How to I get the "Σ" of them? Should I use a circuit to store the numbers, then add them? I'm a bit confused, because I remember in these past exams some people tried something with a simple gate, which I don't recall. Sorry If I sound like a noob :p Any help appreciated!
     
  2. mrmeval

    Distinguished Member

    Jun 30, 2006
    833
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  3. recca02

    Senior Member

    Apr 2, 2007
    1,211
    0
    follow mrmeval's tip.
    the 'Σ' is for summation of minterms that wud give the output.
    try reading abt sop (sum of products).
     
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