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

    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
    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


    Nov 25, 2009
    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?