Datasheet

SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176
DIFFERENTIAL BUS TRANSCEIVERS
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SLLS067H − AUGUST 1990 − REVISED DECEMBER 2010
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D Bidirectional Transceiver
D Meets or Exceeds the Requirements of
ANSI Standard TIA/EIA−485−A and
ISO 8482:1987(E)
D High-Speed Low-Power LinBiCMOS™
Circuitry
D Designed for High-Speed Operation in Both
Serial and Parallel Applications
D Low Skew
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Very Low Disabled Supply Current ...200
μA Maximum
D Wide Positive and Negative Input/Output
Bus Voltage Ranges
D Thermal-Shutdown Protection
D Driver Positive-and Negative-Current
Limiting
D Open-Circuit Failsafe Receiver Design
D Receiver Input Sensitivity . . . ±200 mV Max
D Receiver Input Hysteresis . . . 50 mV Typ
D Operates From a Single 5-V Supply
D Glitch-Free Power-Up and Power-Down
Protection
D Available in Q-Temp Automotive
HighRel Automotive Applications
Configuration Control / Print Support
Qualification to Automotive Standards
description
The SN55LBC176, SN65LBC176,
SN65LBC176Q, and SN75LBC176 differential
bus transceivers are monolithic, integrated
circuits designed for bidirectional data communi-
cation on multipoint bus-transmission lines. They
are designed for balanced transmission lines and
meet ANSI Standard TIA/EIA−485−A (RS-485)
and ISO 8482:1987(E).
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.
1
2
3
4
8
7
6
5
R
RE
DE
D
V
CC
B
A
GND
D, JG, OR P PACKAGE
(TOP VIEW)
3212019
910111213
4
5
6
7
8
18
17
16
15
14
NC
B
NC
A
NC
NC
RE
NC
DE
NC
FK PACKAGE
(TOP VIEW)
NC R NC
GND
NC
V NC
NC
D
NC
NC−No internal connection
CC
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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 © 2000−2006, Texas Instruments Incorporated
LinBiCMOS and LinASIC are trademarks of Texas Instruments Incorporated.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
INPUT
D
H
L
X
ENABLE
DE
H
H
L
OUTPUTS
A B
H L
L H
Z Z
DRIVER
DIFFERENTIAL INPUTS
V
ID
= V
IA
−V
IB
V
ID
≥ 0.2 V
−0.2 V < V
ID
< 0.2 V
V
ID
≤ − 0.2 V
X
Open
ENABLE
RE
L
L
L
H
L
OUTPUT
R
H
?
L
Z
H
RECEIVER
H = high level, L = low level, ? = indeterminate,
X = irrelevant, Z = high impedance (off)
Function Tables