Question #7146d

Feb 12, 2016

It is an output of XOR (Exclusive OR) gate

Explanation:

Truth table for 2 input NAND gate.

Applying to each of the NAND gates of the given figure we obtain the following table:

A = 0, B = 0, Y = 0
A = 0, B = 1, Y = 1
A = 1, B = 0, Y = 1
A = 1, B = 1, Y = 0

This is the truth table for XOR (Exclusive OR) gate.

$\text{Y"="A"o+"B"=bar"A""B"+"A"bar"B}$