Morris MAno[COA]

Question

Design a digital circuit that perform four logic operations of exclusive-OR, exclusive-NOR, NOR and NAND. Use two selection variables. Show logic diagram of one typical stage?

Answer 1

Just use a 4 X 1 MUX

To each input line connect the output of XOR, XNOR, NOR and NAND.

Now using selection variable select the appropriate gate output