INTEGRATED CIRCUITS
74F157A, 74F158A
Data selectors/multiplexers
Product specification
Supersedes data of 1996 Mar 12
IC15 Data Handbook
Philips
Semiconductors
2000 Jun 30
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
IEEE/IEC SYMBOLS, 74F157A
1
74F158A
G1
2
1
EN
15
15
MUX
1
3
G1
EN
2
4
1
5
MUX
1
3
4
1
5
7
7
6
6
11
11
9
10
9
10
14
14
12
12
13
13
SF00219
SF00220
LOGIC DIAGRAM, 74F157A
I0a
I1a
2
I0b
3
I1b
5
I0c
6
4
I1c
11
10
7
Ya
74F158A
I0d
I1d
14
9
Yb
Yc
13
E
S
15
I0a
1
I1a
2
12
I1b
5
I0c
6
4
Yd
VCC = Pin 16
GND = Pin 8
I0b
3
I1c
11
10
7
Ya
I0d
I1d
14
9
Yb
Yc
13
S
15
1
12
Yd
VCC = Pin 16
GND = Pin 8
SF00225
E
SF00226
FUNCTION TABLE, 74F157A
74F158A
INPUTS
OUTPUT
INPUTS
OUTPUT
E
S
I0n
I1n
Yn
E
S
I0n
I1n
Yn
H
X
X
X
L
H
X
X
X
H
L
H
X
L
L
L
L
L
X
H
L
H
X
H
H
L
L
H
X
L
L
L
L
X
L
L
H
X
L
H
L
L
H
X
H
L
H
X
H
L
H = High voltage level
L = Low voltage level
X = Don’t care
2000 Jun 30
H = High voltage level
L = Low voltage level
X = Don’t care
3
