Datasheet

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SGLS211A − OCTOBER 2003 − REVISED MAY 2008
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D Qualified for Automotive Applications
D Bidirectional Transceiver
D Meet or Exceed the Requirements of ANSI
Standard RS-485 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
Requirements . . . 200 µA Maximum
D Wide Positive and Negative Input/Output
Bus Voltage Ranges
D Driver Output Capacity . . . ±60 mA
D Thermal-Shutdown Protection
D Driver Positive-and Negative-Current
Limiting
D Open-Circuit Fail-Safe Receiver Design
D Receiver Input Sensitivity...±200 mV Max
D Receiver Input Hysteresis . . . 50 mV Typ
D Operate From a Single 5-V Supply
D Glitch-Free Power-Up and Power-Down
Protection
description/ordering information
The SN65LBC176 differential bus transceiver is a monolithic, integrated circuit designed for bidirectional data
communication on multipoint bus-transmission lines. It is designed for balanced transmission lines and meets
ANSI Standard RS-485 and ISO 8482:1987(E).
ORDERING INFORMATION
{
T
A
PACKAGE
‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40°C to 125°C SOIC − D Tape and reel SN65LBC176QDRQ1 L176Q1
†
For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI web site at http://www.ti.com.
‡
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
1
2
3
4
8
7
6
5
R
RE
DE
D
V
CC
B
A
GND
D PACKAGE
(TOP VIEW)
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Copyright  2008, Texas Instruments Incorporated
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 and LinASIC are trademarks of Texas Instruments Incorporated.
INPUT
D
H
L
X
ENABLE
DE
H
H
L
OUTPUTS
A B
H L
L H
Z Z
DRIVER
DIFFERENTIAL INPUTS
A−B
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