4 to 3 encoder

Discussion in 'Homework Help' started by yzc717, Nov 23, 2010.

  1. yzc717

    Thread Starter New Member

    Nov 5, 2010
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    0
    I am pretty new to the circuit and I am trying to design a 4 (decimal 3,2,1,0) to 3 (base2 00, 01, 10, 11) encoder. I know how the internal, but I have no idea to represent those constant in Logisim, and I dont want user to choose more than one input.

    Help appreciated!
     
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    3,795
    951
    try two OR gates

    each has two connections

    one to input "1" and "3" the other to input "2" and "3".

    (input zero would not be used in this configuration - ala idiot switch)
     
  3. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
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