4070 Quad XOR Gate DIP-14

CD4070 An IC with Four XOR Gates

The CD4070 is a CMOS chip with four XOR gates. Because each gate has two inputs and it has four gates inside, its usually called a
Quad 2-Input XOR Gate
.

XOR means
exclusive OR
, and will only give a HIGH output if one of the inputs is HIGH and the other is LOW. Or to say it in another way:
The output from an XOR gate will be HIGH only if the inputs are not equal.

Pin Overview

Pin Name

Pin #

Type

Description

VDD

14

Power

Supply Voltage (+3 to +15V)

GND

7

Power

Ground (0V)

A1 to A4

1, 5, 8, 12

Input

Inputs A of the four XOR gates

B1 to B4

2, 6, 9, 13

Input

Inputs B of the four XOR gates

Q1 to Q4

3, 4, 10, 11

Output

Outputs from the four XOR gates

Pin overview for the 4070 IC

What is an XOR gate?

XOR gate symbol

TheXOR gateoutputs HIGH if its two inputs are not equal. So if one of the inputs (both not both!) is HIGH, the output will be HIGH. Its one of thebasic logic gates.

Input A

Input B

Output Y

0

0

0

0

1

1

1

0

1

1

1

0

XOR Gate Truth Table

How To Use the CD4070?

Like with all ICs in the 4000 series, you need a power supply voltage of 3 to 15V. Some versions of the chip support up to 20V. Check the datasheet of your version of the chip for exact values.

To be able to use any of the XOR gates in the chip, you need to first connect the
VDD pin
to the positive supply terminal and the
GND pin
to the negative supply terminal.

The A and B pins
are the inputs to the four XOR gates in the IC.

The Q pins
are the outputs from the XOR gates.

Technical Specifications

Physical

Case/Package

PDIP

Contact Plating

Gold

Mount

Through Hole

Number of Pins

14

Technical

Ambient Temperature Range High

125 C

High Level Output Current

-4.2 mA

Input Capacitance

5 pF

Logic Function

XOR

Low Level Output Current

4.2 mA

Max Junction Temperature (Tj)

150 C

Max Operating Temperature

125 C

Max Output Current

6.8 mA

Max Supply Voltage

18 V

Min Operating Temperature

-55 C

Min Supply Voltage

3 V

Number of Bits

4

Number of Channels

4

Number of Circuits

4

Number of Elements

4

Number of Gates

4

Number of Input Lines

2

Number of Inputs

2

Number of Output Lines

1

Number of Outputs

1

Output Current

6.8 mA

Propagation Delay

100 ns

Quiescent Current

5 A

Schmitt Trigger Input

No

Termination

Through Hole

Turn-On Delay Time

100 ns

4070 Datasheet