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74ALS158 Datasheet(PDF) 3 Page - NXP Semiconductors

Part # 74ALS158
Description  Data selector/multiplexer
PDF  9 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74ALS158 Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74ALS157/74ALS158
Data selector/multiplexer
1991 Feb 08
3
IEC/IEEE SYMBOL – 74ALS157
SC00055
2
1
1
G1
15
EN
3
4
1
MUX
5
6
7
11
10
9
14
13
12
IEC/IEEE SYMBOL – 74ALS158
SC00056
2
1
1
G1
15
EN
3
4
1
MUX
5
6
7
11
10
9
14
13
12
LOGIC DIAGRAM – 74ALS157
VCC = Pin 16
GND = Pin 8
E
I0a
I1a
I0b
I1b
I0c
I1c
I0d
I0d
S
15
2
3
5
6
11
10
14
13
1
47
9
12
Ya
Yb
Yc
Yd
SC00057
LOGIC DIAGRAM – 74ALS158
VCC = Pin 16
GND = Pin 8
E
I0a
I1a
I0b
I1b
I0c
I1c
I0d
I0d
S
15
2
3
5
6
11
10
14
13
1
47
9
12
Ya
Yb
Yc
Yd
SC00058
FUNCTION TABLE – 74ALS157
INPUTS
OUTPUTS
E
S
I0n
I1n
Yn
H
X
X
X
L
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
H = High voltage level
L
= Low voltage level
X = Don’t care
FUNCTION TABLE – 74ALS158
INPUTS
OUTPUTS
E
S
I0n
I1n
Yn
H
X
X
X
H
L
L
L
X
H
L
L
H
X
L
L
H
X
L
H
L
H
X
H
L
H = High voltage level
L
= Low voltage level
X = Don’t care



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