ꢀꢁ ꢂꢃ ꢄꢅꢆ ꢂ ꢇ ꢈꢉ ꢀꢁꢇ ꢃꢄꢅ ꢆꢂ ꢇꢈ
ꢊ ꢋꢈꢌ ꢍꢋꢎ ꢄ ꢏ ꢐ ꢑꢄ ꢒꢁꢏ ꢓ ꢔ ꢆ ꢑꢄ ꢒꢁꢏ ꢌꢈꢓꢈ ꢀꢏ ꢄꢏ ꢕꢓꢔ ꢍꢀꢖ ꢗꢋ ꢄꢓ ꢒ ꢎꢄ ꢏꢘ ꢏ ꢍꢀ
SCLS397F − APRIL 1998 − REVISED APRIL 2005
SN54LV157A . . . J OR W PACKAGE
SN74LV157A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
D
D
D
D
D
D
D
2-V to 5.5-V V
Operation
CC
Max t of 7.5 ns at 5 V
pd
Typical V
(Output Ground Bounce)
OLP
<0.8 V at V , T = 25°C
A/B
1A
V
CC
G
1
2
3
4
5
6
7
8
16
15
14
13
CC
A
Typical V
(Output V
Undershoot)
OHV
OH
1B
4A
4B
>2.3 V at V , T = 25°C
CC
A
1Y
I
Supports Partial-Power-Down-Mode
off
2A
12 4Y
Operation
11
10
9
2B
3A
3B
3Y
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
2Y
GND
ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
SN54LV157A . . . FK PACKAGE
(TOP VIEW)
− 1000-V Charged-Device Model (C101)
description/ordering information
3
2
1 20 19
18
4A
4B
NC
The ’LV157A devices are quadruple 2-line to
1-line data selectors/multiplexers designed for
1B
1Y
NC
2A
2B
4
5
6
7
8
17
16
2-V to 5.5-V V
operation.
CC
15 4Y
14
9 10 11 12 13
These devices contain inverters and drivers to
supply full data selection to the four output gates.
A separate strobe (G) input is provided. A 4-bit
word is selected from one of two sources and is
routed to the four outputs. The ’LV157A devices
present true data.
3A
NC − No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube of 40
SN74LV157AD
SOIC − D
LV157A
Reel of 2500
Reel of 2000
Reel of 2000
Tube of 90
SN74LV157ADR
SN74LV157ANSR
SN74LV157ADBR
SN74LV157APW
SN74LV157APWR
SN74LV157APWT
SN74LV157ADGVR
SNJ54LV157AJ
SOP − NS
74LV157A
LV157A
SSOP − DB
−40°C to 85°C
Reel of 2000
Reel of 250
Reel of 2000
Tube of 25
TSSOP − PW
LV157A
TVSOP − DGV
CDIP − J
LV157A
SNJ54LV157AJ
SNJ54LV157AW
SNJ54LV157AFK
−55°C to 125°C CFP − W
Tube of 150
Tube of 55
SNJ54LV157AW
SNJ54LV157AFK
LCCC − FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
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 2005, Texas Instruments Incorporated
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1
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