2
Functional Diagram
Logic Symbol
TRUTH TABLE
INPUTS OUTPUT
nA nB nC nD nY
LLLLH
HXXXL
XHXXL
XXHXL
XXXHL
H = High Voltage Level, L = Low Voltage Level, X = Irrelevant
1A
1C
2A
2B
2D
2
4
5
9
11
12
1
2Y
1Y
13
1D
GND = 7
V
CC
= 14
NC = 6, 8
2C
1B
3
10
nA
nB
nY
nC
nD
CD54HC4002, CD74HC4002
