16 x 1 multiplexer by using full adder

Discussion in 'Homework Help' started by sheen5, Oct 16, 2010.

  1. sheen5

    Thread Starter New Member

    Oct 16, 2010
    1
    0
    Hello

    please tell me how to make 16 x 1 multiplexer by using full adder in such a way that function for multiplexer depends on first bit of full adder i.e x out of x, y, z. and similarly make it for y and z bits of full adder for 16 x 1 multiplexer.Actually here i have to find out such implementation that first multiplexer depend only on x then only on y and then only on z.means by using x, y, z of FA independently i have to implement multiplexer.

    x y z s c
    0 0 0 0 0
    0 0 1 1 0
    . . . . .
    . . . . .
    1 1 1 1 1

    please reply soon.
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    This sounds like an assignment. The odd thing is that it is usually set up as making a full adder with a multiplexer.

    Try making up a truth table.
     
  3. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    I 'm afraid I don't quite understand what you try to do.

    What I get is that you want to build a 16-to-1 Multiplexer, which has 4 control inputs, with an adder.
    Do you know how many bits the adder should have? Can you give us an example of how this contraption would work?
     
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