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ꢍ ꢎꢉꢏ ꢐ ꢎꢌꢄ ꢋ ꢑ ꢊꢄ ꢒꢁꢋ ꢓ ꢔ ꢇ ꢊꢄ ꢒꢁꢋ ꢏꢉꢓꢉ ꢀꢋ ꢄꢋ ꢆꢓꢔ ꢐꢕꢖ ꢎꢄꢓꢒ ꢌ ꢄꢋ ꢗꢋ ꢐ
SCAS735A − NOVEMBER 2003 − REVISED MAY 2004
D
Controlled Baseline
− One Assembly/Test Site, One Fabrication
Site
D
D
D
D
Operates From 2 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max t of 5.4 ns at 3.3 V
pd
D
D
D
D
D
Extended Temperature Performance of
−40°C to 125°C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Typical V
<0.8 V at V
(Output Ground Bounce)
OLP
CC
= 3.3 V, T = 25°C
A
D
Typical V
(Output V
Undershoot)
OHV
OH
>2 V at V
= 3.3 V, T = 25°C
CC
A
Enhanced Product-Change Notification
D OR PW PACKAGE
(TOP VIEW)
†
Qualification Pedigree
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
G
A/B
1A
1B
1Y
2A
2B
2Y
CC
†
4A
4B
4Y
3A
3B
3Y
Component qualification in accordance with JEDEC and industry
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification
testing should not be viewed as justifying use of this component
beyond specified performance and environmental limits.
GND
description/ordering information
The SN74LVC157A-EP quadruple 2-line to 1-line data selector/multiplexer is designed for 2.7-V to 3.6-V V
operation.
CC
This device features a common strobe (G) input. When G is high, all outputs are low. When G is low, a 4-bit word
is selected from one of two sources and is routed to the four outputs. The device provides true data.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator
in a mixed 3.3-V/5-V system environment.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
‡
PACKAGE
T
A
SOIC − D
Tape and reel
Tape and reel
SN74LVC157AQDREP
SN74LVC157AQPWREP
C157AEP
C157AEP
−40°C to 125°C
TSSOP − PW
‡
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
X
A
X
L
B
X
X
X
L
L
L
L
L
L
H
X
X
H
L
L
H
L
H
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.
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Copyright 2004, Texas Instruments Incorporated
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1
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