74ahct157bq NXP Semiconductors, 74ahct157bq Datasheet - Page 4

• Manufacturer Part Number: 74ahct157bq
• Description: 74ahc157; 74ahct157 Quad 2-input Multiplexer
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 2.
6. Functional description
Table 3.
[1]
74AHC_AHCT157_2
Product data sheet
Symbol
S
1I0 to 4I0
1I1 to 4I1
1Y to 4Y
GND
E
V
Input
E
H
L
L
L
L
CC
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care.
Pin description
Function table
Pin
1
2, 5, 11, 14
3, 6, 10, 13
4, 7, 9, 12
8
15
16
5.2 Pin description
S
X
L
L
H
H
[1]
Description
common data select input
data inputs from source 0
data inputs from source 1
multiplexer outputs
ground (0 V)
enable input (active LOW)
supply voltage
Rev. 02 — 9 November 2007
nI0
X
L
H
X
X
74AHC157; 74AHCT157
nI1
X
X
X
L
H
Quad 2-input multiplexer
Output
nY
L
L
H
L
H
© NXP B.V. 2007. All rights reserved.
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