AND Gate and NAND gate in DLD Digital Logic Design

By Prof. Fazal Rehman Shamil
Last modified on May 27th, 2019

What is AND Gate?

The AND Gate performs logical multiplication function. AND Gate can have many  inputs and a single output.  AND Gate can be represented by the figures shown below;

and gate in logics
Figure: AND Logic Gate


Inputs Output
0 0 0
0 1 0
1 0 0
1 1 1

What is NAND Gate?

The NAND Gate performs a combination of an AND gate and a NOT gate.

A NAND Gate can have multiple inputs and a single output.

NAND logic gate
Figure: NAND Gate
Input Output
0 0 1
0 1 1
1 0 1
1 1 0

Figure: Representation of NAND Gate

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