4081 IC Quad 2-Input AND Gate

4081 An IC With Four AND Gates

The 4081 is a CMOS chip with four AND gates. An AND gate is a logic gate that gives a HIGH output only when all its inputs are HIGH.

This particularIntegrated Circuit (IC)has four AND gates and each gate has two inputs. Therefore its often called a
Quad 2-Input AND Gate
.

CD4081 IC Pinout Description

Pin Number

Pin Name

Pin Description

14

VDD

Supply voltage input, 5V to 15V

7

VSS

Ground reference

1, 2

INPUT

AND gate one inputs

3

OUTPUT

AND gate one output

5, 6

INPUT

AND gate two inputs

4

OUTPUT

AND gate two output

8, 9

INPUT

AND gate three inputs

10

OUTPUT

AND gate three output

12, 13

INPUT

AND gate four inputs

11

OUTPUT

AND gate four output

Features

Four two-input AND gates in one package

Wide supply range 5V to 15V typical

700mW power dissipation

Symmetrical output characteristics

Maximum input leakage 1 A at 15V over a full temperature range

Available in the DIP-14 package

Note:
Complete technical details about this IC can be found in the
CD4081 datasheet
, linked at the end of the page.

What is an AND gate?

AnAND gateis one of thebasic logic gates. It can have two or more inputs. It gives a HIGH output only when all of these inputs are HIGH. The basic AND gate has two inputs and you can see its symbol and truth table below.

AND gate symbol

Input A

Input B

Output Q

0

0

0

1

0

0

0

1

0

1

1

1

Truth Table for the AND gate

Applications

Logic buffers, inverters, and decoders

Implementing logic circuits

Signal conditioning

4081 Datasheet