Harman Kardon DVD 29/230 Service Manual page 25

harman/kardon
D
EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
D
Typical V
OLP
< 0.8 V at V
D
Typical V
OHV
> 2 V at V
CC
D
Inputs Accept Voltages to 5.5 V
D
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
D
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages
description
This quadruple 2-line to 1-line data selector/multiplexer is designed for 1.65-V to 3.6-V V
The SN74LVC157A features 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 device
provides true data.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
The SN74LVC157A is characterized for operation from –40 C to 85 C.
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.
EPIC is a trademark of Texas Instruments Incorporated.
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.
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
(Output Ground Bounce)
= 3.3 V, T = 25 C
CC A
(Output V Undershoot)
OH
= 3.3 V, T = 25 C
A
G
H
L
L
L
L
POST OFFICE BOX 655303
SCAS292G – JANUARY 1993 – REVISED OCTOBER 1998
FUNCTION TABLE
INPUTS
OUTPUT
Y
A/B A B
X X X L
L L X L
L H X H
H X L L
H X H H
DALLAS, TEXAS 75265
DVD 29/230 Service Manual
SN74LVC157A
D, DB, OR PW PACKAGE
(TOP VIEW)
A/B V
1 16
CC
1A G
2 15
1B 4A
3 14
1Y 4B
4 13
2A 4Y
5 12
2B 3A
6 11
2Y 3B
7 10
GND 8 9 3Y
operation.
CC
Copyright 1998, Texas Instruments Incorporated
1
Page 25 of 55