DLD

Discussion in 'Homework Help' started by Zoro, Oct 8, 2013.

  1. Zoro

    Thread Starter New Member

    Oct 8, 2013
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    0
    Hi... i need your help urgently... can anyone tell me how to implement full adder circuit using two (4x1) multiplexer???? :(
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,144
    1,791
    You start by writing the Boolean Equations for a full adder. There are three inputs and two outputs.
     
  3. Zoro

    Thread Starter New Member

    Oct 8, 2013
    2
    0
    I know how to implement it using boolean algebra but i want to know how am i supposed to make full adder circuit using two (4x1) multiplexer....
    i want to know how to make two (4x1) multiplexer circuit...
     
  4. WBahn

    Moderator

    Mar 31, 2012
    17,748
    4,796
    Since you haven't shown any attempt to work YOUR homework problem, we have to start with basics. So,

    Start by writing the Boolean equations for a full adder.

    Then write the Boolean equation for a 4:1 multiplexer.
     
  5. Papabravo

    Expert

    Feb 24, 2006
    10,144
    1,791
    Once you have the Boolean equations for the full adder you can wire the inputs to produce a 1 or a 0. Now what should you do with the select lines?
     
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