SN75ALS191 Datasheet, PDF (1/5 Pages) Texas Instruments – DUAL DIFFERENTIAL LINE DRIVER

SN75ALS191
DUAL DIFFERENTIAL LINE DRIVER
D Meets or Exceeds the Requirements of
ANSI Standard EIA/TIA-422-B and ITU
Recommendation V.11
D Designed to Operate at 20 Mbaud or Higher
D TTL-and CMOS-Input Compatibility
D Single 5-V Supply Operation
D Output Short-Circuit Protection
D Improved Replacement for the µA9638
SLLS032B – DECEMBER 1987 – REVISED MAY 1995
D OR P PACKAGE
(TOP VIEW)
V_CC 1
1A 2
2A 3
GND 4
8 1Y
7 1Z
6 2Y
5 2Z
description
The SN75ALS191 is a dual, high-speed, differential line driver designed to meet ANSI Standard EIA/TIA-422-B
and ITU Recommendation V.11. The inputs are TTL- and CMOS-compatible and have input clamp diodes.
Schottky-diode-clamped transistors minimize propagation delay time. This device operates from a single 5-V
power supply and is supplied in eight-pin packages.
The SN75ALS191 is characterized for operation from 0°C to 70°C.
logic symbol^†
FUNCTION TABLE
(each driver)
INPUTS
A
OUTPUTS
Y
Z
H
H
L
L
L
H
H = high level, L = low level,
Z = high impedance
logic diagram (positive logic)
1A ²
2A ³
8 _1Y
7 _1Z
6 _2Y
5 _2Z
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC Publication 617-12.
2
1A
3
2A
8
1Y
7
1Z
6
2Y
5
2Z
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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.
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Copyright © 1995, Texas Instruments Incorporated
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