dm74154 National Semiconductor Corporation, dm74154 Datasheet - Page 3

• Manufacturer Part Number: dm74154
• Description: 4-line To 16-line Decoders/demultiplexers
• Manufacturer: National Semiconductor Corporation

Function Table
H
Logic Diagram
G1
e
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
High Level L
G2
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Inputs
D
H
H
H
H
H
H
H
H
X
X
X
e
L
L
L
L
L
L
L
L
Low Level X
C
H
H
H
H
H
H
H
H
X
X
X
L
L
L
L
L
L
L
L
B
H
H
H
H
H
H
H
H
X
X
X
L
L
L
L
L
L
L
L
e
Don’t Care
A
H
H
H
H
H
H
H
H
X
X
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
0
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
1
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
2
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
3
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
4
L
3
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
5
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
6
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
7
L
Outputs
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
8
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
9
L
10
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
11
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
12
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
TL F 6548 – 2
13
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
14
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
15
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L