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SN74LV157A Datasheet Preview

SN74LV157A Datasheet

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXER

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SN54LV157A, SN74LV157A
QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS
D 2-V to 5.5-V VCC Operation
D Max tpd of 7.5 ns at 5 V
D Typical VOLP (Output Ground Bounce)
<0.8 V at VCC, TA = 25°C
D Typical VOHV (Output VOH Undershoot)
>2.3 V at VCC, TA = 25°C
D Ioff Supports Partial-Power-Down-Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
SCLS397F − APRIL 1998 − REVISED APRIL 2005
SN54LV157A . . . J OR W PACKAGE
SN74LV157A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
A/B 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
16 VCC
15 G
14 4A
13 4B
12 4Y
11 3A
10 3B
9 3Y
SN54LV157A . . . FK PACKAGE
(TOP VIEW)
description/ordering information
The ’LV157A devices are quadruple 2-line to
1-line data selectors/multiplexers designed for
2-V to 5.5-V VCC operation.
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.
3 2 1 20 19
1B 4
18 4A
1Y 5
17 4B
NC 6
16 NC
2A 7
15 4Y
2B 8
14 3A
9 10 11 12 13
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − D
Tube of 40
Reel of 2500
SN74LV157AD
SN74LV157ADR
LV157A
SOP − NS
Reel of 2000 SN74LV157ANSR
74LV157A
SSOP − DB
−40°C to 85°C
Reel of 2000
Tube of 90
SN74LV157ADBR
SN74LV157APW
LV157A
TSSOP − PW
Reel of 2000 SN74LV157APWR
LV157A
Reel of 250 SN74LV157APWT
TVSOP − DGV Reel of 2000 SN74LV157ADGVR
LV157A
CDIP − J
Tube of 25
SNJ54LV157AJ
SNJ54LV157AJ
−55°C to 125°C CFP − W
Tube of 150 SNJ54LV157AW
SNJ54LV157AW
LCCC − FK
Tube of 55
SNJ54LV157AFK
SNJ54LV157AFK
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.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2005, Texas Instruments Incorporated
1




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SN74LV157A Datasheet Preview

SN74LV157A Datasheet

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXER

No Preview Available !

SN54LV157A, SN74LV157A
QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS
SCLS397F − APRIL 1998 − REVISED APRIL 2005
description/ordering information (continued)
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the
outputs, preventing damaging current backflow through the devices when they are powered down.
FUNCTION TABLE
INPUTS
SELECT
DATA
G
A/B
A
B
OUTPUT
Y
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
logic diagram (positive logic)
1A 2
3
1B
4 1Y
5
2A
2B 6
3A 11
10
3B
7
2Y
9 3Y
4A 14
4B 13
12 4Y
G 15
A/B 1
Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN74LV157A
Description QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXER
Maker etcTI
Total Page 3 Pages
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