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SN75LBC173A Datasheet Preview

SN75LBC173A Datasheet

Quadruple RS-485 Differential Line Receivers

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SN65LBC173A, SN75LBC173A
QUADRUPLE RSĆ485 DIFFERENTIAL LINE RECEIVERS
SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005
D Designed for TIA/EIA-485, TIA/EIA-422, and
ISO 8482 Applications
D Signaling RateExceeding 50 Mbps
D Fail-Safe in Bus Short-Circuit, Open-Circuit,
and Idle-Bus Conditions
D ESD Protection on Bus Inputs
Exceeds 6 kV
D Common-Mode Bus Input Range
–7 V to 12 V
D Propagation Delay Times <16 ns
D Low Standby Power Consumption <20 µA
D Pin-Compatible Upgrade for AM26LS32,
DS96F173, LTC488, and SN75173
description
The SN65LBC173A and SN75LBC173A are
quadruple differential line receivers with 3-state
outputs, designed for TIA/EIA-485 (RS-485),
TIA/EIA-422 (RS-422), and ISO 8482 (Euro
RS-485) applications.
These devices are optimized for balanced
multipoint bus communication at data rates up to
and exceeding 50 million bits per second. The
transmission media may be twisted-pair cables,
printed-circuit board traces, or backplanes. The
ultimate rate and distance of data transfer is
dependent upon the attenuation characteristics of
the media and the noise coupling to the
environment.
SN65LBC173A (Marked as 65LBC173A)
SN75LBC173A (Marked as 75LBC173A)
D or N PACKAGE
(TOP VIEW)
1B 1
1A 2
1Y 3
G4
2Y 5
2A 6
2B 7
GND 8
logic diagram
16 VCC
15 4B
14 4A
13 4Y
12 G
11 3Y
10 3A
9 3B
G
G
1A
1Y
1B
2A
2Y
2B
3A
3Y
3B
4A
4Y
4B
Each receiver operates over a wide range of positive and negative common-mode input voltages, and features
ESD protection to 6 kV, making it suitable for high-speed multipoint data transmission applications in harsh
environments. These devices are designed using LinBiCMOSt, facilitating low power consumption and
robustness.
The G and G inputs provide enable control logic for either positive- or negative-logic enabling all four drivers.
When disabled or powered off, the receiver inputs present a high-impedance to the bus for reduced system
loading.
The SN75LBC173A is characterized for operation over the temperature range of 0°C to 70°C. The
SN65LBC173A is characterized over the temperature range 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.
LinBiCMOS is a trademark of Texas Instruments.
†The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
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.
Copyright 2001, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1




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SN75LBC173A Datasheet Preview

SN75LBC173A Datasheet

Quadruple RS-485 Differential Line Receivers

No Preview Available !

SN65LBC173A, SN75LBC173A
QUADRUPLE RSĆ485 DIFFERENTIAL LINE RECEIVERS
SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005
FUNCTION TABLE
(each receiver)
DIFFERENTIAL INPUTS
A – B (VID)
ENABLES
G
G
OUTPUT
Y
VID −0.2 V
H
X
L
X
L
H
X
−0.2 V < VID < −0.01 V
X
L
?
−0.01 V VID
H
X
H
X
L
L
H
X
Z
OPEN
OPEN
Short circuit
H
X
H
X
L
Open circuit
H
X
H
H = high level, L = low level, X = irrelevant, Z = high impedance (off),
? = indeterminate
AVAILABLE OPTIONS
PACKAGE
TA
PLASTIC
SMALL OUTLINE†
PLASTIC
DUAL-IN-LINE
(JEDEC MS-012)
(JEDEC MS-001)
0°C to 70°C
SN75LBC173AD
SN75LBC173AN
−40°C to 85°C
SN65LBC173AD
Add an R suffix for taped and reeled
SN65LBC173AN
equivalent input and output schematic diagrams
Input
A Input
16 V
100 k
18 k
4 k
16 V
4 k
VCC
Input
B Input
16 V
18 k
16 V
100 k
4 k
4 k
VCC
G Input
Input
8V
1 k
100 k
VCC
G Input
Input
8V
100 k
1 k
8V
VCC
VCC
Y Output
5
Output
8V
8V
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN75LBC173A
Description Quadruple RS-485 Differential Line Receivers
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