Wednesday, February 25, 2009

Building XOR with alien gates only

There is a shortage of XOR gates. The only logic gates available are “X” and “Y”. The truth table of both components is presented below.


Build an XOR gate using these gates?

4 comments:

  1. 1) Create compliments of inputs, P and Q by sending through X and Y simultaneously and tie the output onto single wire.
    2) Next, to get the truth table of XOR, connect them so that when inputs are 0, 0 and 1,1 you get output 0 and when 0,1 and 1,0 you get the output 1. Tie them all to one wire, because Z doesnot effect the output signal.

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  2. Create compliments of inputs, P and Q by sending through X and Y simultaneously and tie the output onto single wire.
    2) Next, to get the truth table of XOR, connect them so that when inputs are 0, 0 and 1,1 you get output 0 and when 0,1 and 1,0 you get the output 1. Tie them all to one wire, because Z doesnot effect the output signal.

    ReplyDelete
  3. it is a shame you don't give credit to where you 'borrowed' those from...
    asucdigitaldesign.wordpress.com

    ReplyDelete