Realizing subtractor difference using MUXs

Discussion in 'Homework Help' started by Mahesh Abnave, Oct 16, 2016.

  1. Mahesh Abnave

    Thread Starter New Member

    Jan 12, 2016
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    Which of the following combinational circuit gives the Boolean expression for DIFFERENCE of a full subtractor?
    [​IMG]
     
  2. crutschow

    Expert

    Mar 14, 2008
    12,977
    3,220
    I give up. :confused:
    Which is it?

    Is this homework?
     
  3. WBahn

    Moderator

    Mar 31, 2012
    17,715
    4,788
    Not only do you want someone to answer your homework question for you, but you don't even want to be bothered with indicating what the various signals -- {x, y, z} -- represent?

    How about starting with the Truth Table for a full subtractor? Or are we supposed to provide that, too?
     
  4. MrAl

    Well-Known Member

    Jun 17, 2014
    2,418
    488
    Hi,

    The answer is simple. The answer is: it is either A, B, C, or D.
    Once we get more info we might be able to narrow it down :)
     
  5. WBahn

    Moderator

    Mar 31, 2012
    17,715
    4,788
    It would also help if you indicated which input to the MUX corresponds to which state of the select signal.

    We are NOT mind readers!
     
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