Question

Write the truth table and Boolean expression for an AND gate.

Write the Boolean expression for an AND gate.

Answer 1

An AND gate has two or more inputs and one output in which the output signal is HIGH if and only if all the inputs are HIGH simultaneously.

The AND operation represents a logical multiplication.

The following figure shows the 2-input AND gate logic symbol and the Boolean expression and the truth table for the AND function.

Logic symbol:

Boolean expression: Y = A*B

Truth table:

Inputs		Output Y
A	B
0	0	0
0	1	0
1	0	0
1	1	1