Draw truth table and logical diagram of half adder

Mumbai University > Electronics Engineering > Sem 3 > Digital Circuits and Design

Marks: 5M

Year: Dec 2015

  • Half adder is a combinational logic circuit with two inputs and two outputs. It is the basic building block for addition of two “single” bit numbers. This circuit has two outputs namely “carry” and “sum”. Truth table of half adder is given below:
A B Sum Carry
0 0 0 0
0 1 1 0
1 0 1 0
1 1 0 1

Logical Equation:

Sum= A’B + AB’ Carry= AB

Logical diagram is as follows:

enter image description here

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