74HC154 Philips, 74HC154 Datasheet - Page 4

• Manufacturer Part Number: 74HC154
• Description: 4-to-16 line decoder/demultiplexer
• Manufacturer: Philips

Philips Semiconductors
FUNCTION TABLE
Note
1. H = HIGH voltage level
September 1993
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
E
4-to-16 line decoder/demultiplexer
0
L = LOW voltage level
X = don’t care
H
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
E
1
X
X
X
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
A
0
INPUTS
X
X
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
A
1
X
X
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
A
2
X
X
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
A
3
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Y
0
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Y
1
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
Y
2
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
Y
Fig.5 Logic diagram.
3
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
Y
4
4
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
Y
5
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
Y
6
OUTPUTS
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
Y
7
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
Y
8
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
Y
9
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
Y
10
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
Y
74HC/HCT154
11
Product specification
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
Y
12
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
Y
13
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
Y
14
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
Y
15