CD54AC157, CD74AC157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCHS335 – MARCH 2003
CD54AC157 . . . F PACKAGE
CD74AC157 . . . E OR M PACKAGE
(TOP VIEW)
AC Types Feature 1.5-V to 5.5-V Operation
and Balanced Noise Immunity at 30% of the
Supply Voltage
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Speed of Bipolar F, AS, and S, With
Significantly Reduced Power Consumption
V
G
A/B
1A
1B
1Y
2A
2B
2Y
GND
CC
4A
4B
4Y
3A
3B
3Y
Balanced Propagation Delays
±24-mA Output Drive Current
– Fanout to 15 F Devices
SCR-Latchup-Resistant CMOS Process and
Circuit Design
Exceeds 2-kV ESD Protection Per
MIL-STD-883, Method 3015
description/ordering information
These quadruple 2-line to 1-line data selectors/multiplexers are designed for 1.5-V to 5.5-V V
operation.
CC
The ’AC157 devices feature a common strobe (G) input. When the strobe is high, all outputs are low. When the
strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The devices
provide true data.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP – E
SOIC – M
CDIP – F
Tube
Tube
CD74AC157E
CD74AC157M
CD74AC157E
–55°C to 125°C
AC157M
Tape and reel CD74AC157M96
Tube CD54AC157F3A
CD54AC157F3A
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OUTPUT
Y
G
H
L
A/B
A
X
L
B
X
X
X
L
X
L
L
L
L
L
H
X
X
H
L
L
H
H
L
H
H
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
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