SN75ALS173NSR Datasheet, PDF (1/12 Pages) Texas Instruments – Meets or Exceeds the Requirements of ITU Recommendations V.10, V.11, X.26, and X.27

SN75ALS173
QUADRUPLE DIFFERENTIAL LINE RECEIVER
D Meets or Exceeds the Requirements of
ANSI EIA/TIA-422-B, EIA/TIA-423-B, and
RS-485
D Meets or Exceeds the Requirements of ITU
Recommendations V.10, V.11, X.26, and
X.27
D Designed for Multipoint Bus Transmission
on Long Bus Lines in Noisy Environments
D 3-State Outputs
D Common-Mode Input Voltage Range of
– 12 V to 12 V
D Input Sensitivity . . . ± 200 mV
D Input Hysteresis . . . 50 mV Typ
D High Input Impedance . . . 12 kΩ Min
D Operates From Single 5-V Supply
D Low Supply-Current Requirement
27 mA Max
SLLS132C – SEPTEMBER 1991 – REVISED MAY 1995
N OR NS† PACKAGE
(TOP VIEW)
1B 1
1A ²
1Y ³
G⁴
2Y ⁵
2A ⁶
2B ⁷
GND ⁸
16 V_CC
15 4B
14 4A
13 4Y
12 _G
11 _3Y
10 _3A
9 _3B
† _{The NS package is only available left-end taped and}
reeled (order device SN75ALS173 NSLE).
description
The SN75ALS173 is a monolithic quadruple differential line receiver with 3-state outputs. It is designed to meet
the requirements of ANSI Standards EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and several ITU
recommendations. Advanced low-power Schottky technology provides high speed without the usual power
penalty. The four receivers have an ORed pair of enables in common. Either G high or G low enables all of the
receivers. The device features high input impedance, input hysteresis for increased noise immunity, and input
sensitivity of ± 200 mV over a common-mode input voltage range of – 12 V to 12 V.
The SN75ALS173 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each receiver)
DIFFERENTIAL
A–B
ENABLES
G
G
OUTPUT
Y
VID ≥ 0.2 V
H
X
H
X
L
H
H
X
?
– 0.2 V < VID < 0.2 V
X
L
?
VID ≤ – 0.2 V
H
X
L
X
L
L
X
L
H
Z
Open Circuit
H
X
H
X
L
H
H = high level, L = low level, ? = indeterminate,
X = irrelevant, Z = high impedance (off)
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.
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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