Datasheet

2
Pinout
CD54HC02, CD54HCT02
(CERDIP)
CD74HC02, CD74HCT02
(PDIP, SOIC)
TOP VIEW
Functional Diagram
Logic Diagram
TRUTH TABLE
INPUTS OUTPUT
nA nB nY
LLH
LHL
HLL
HHL
H = High Voltage Level, L = Low Voltage Level
1Y
1A
1B
2Y
2A
2B
GND
V
CC
4Y
4B
4A
3Y
3B
3A
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1Y
1A
2Y
2A
2B
GND
1
2
3
4
5
6
14
13
12
11
V
CC
4Y
3A
3Y
4B
4A
10
8
7
9
3B
1B
nA
nB
CD54HC02, CD74HC02, CD54HCT02, CD74HCT02