Description
CD4073 – An IC with Three AND Gates (3-input)
The CD4073 is a CMOS chip with three 3-input AND gates. Because each gate has three inputs and it has three gates inside, it’s usually called a
Triple 3-Input AND Gate
.
An AND gate is a basic logic gate that checks if all its inputs are HIGH. So the output from a 3-input AND gate will only be HIGH if all three inputs are HIGH.
Pin Overview
Pin Name
Pin #
Type
Description
VDD
14
Power
Supply Voltage (+3 to +15V)
GND
7
Power
Ground (0V)
A1 to A3
1, 3, 13
Input
Inputs A of the three AND gates
B1 to B3
2, 4, 12
Input
Inputs B of the three AND gates
C1 to C3
5, 8, 11
Input
Inputs C of the three AND gates
Q1 to Q3
6, 9, 10
Output
Outputs from the three AND gates
Pin overview for the 4073 IC
What is a 3-input AND gate?
An AND gate with three inputs will only give out HIGH if all inputs are HIGH (input 1 AND input 2 AND input 3). You can see the truth table below.
3-input AND gate symbol
Input A
Input B
Input C
Output Q
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
Truth Table for the 3-input AND gate
Product Attributes
TYPE
DESCRIPTION
Logic Type
AND Gate
Number of Circuits
3
Number of Inputs
3
Voltage – Supply
3V ~ 18V
Current – Quiescent (Max)
1 µA
Current – Output High, Low
3.4mA, 3.4mA
Input Logic Level – Low
1.5V ~ 4V
Input Logic Level – High
3.5V ~ 11V
Max Propagation Delay @ V, Max CL
90ns @ 15V, 50pF
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Package / Case
14-DIP
4073 Datasheet
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