SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176
DIFFERENTIAL BUS TRANSCEIVERS
SLLS067F – AUGUST 1990 – REVISED JANUARY 2000
D, JG, OR P PACKAGE
(TOP VIEW)
Bidirectional Transceiver
Meet or Exceed the Requirements of ANSI
Standard RS-485 and
ISO 8482:1987(E)
R
RE
DE
D
V
B
A
1
2
3
4
8
7
6
5
CC
High-Speed Low-Power LinBiCMOS
Circuitry
GND
Designed for High-Speed Operation in Both
Serial and Parallel Applications
Low Skew
FK PACKAGE
(TOP VIEW)
Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
Very Low Disabled Supply-Current
Requirements . . . 200 µA Maximum
3
2
1
20 19
18
NC
NC
RE
NC
DE
NC
4
5
6
7
8
Wide Positive and Negative Input/Output
Bus Voltage Ranges
B
17
16
15
14
NC
A
Driver Output Capacity . . . ±60 mA
NC
Thermal-Shutdown Protection
9 10 11 12 13
Driver Positive-and Negative-Current
Limiting
Open-Circuit Fail-Safe Receiver Design
Receiver Input Sensitivity . . . ±200 mV Max
Receiver Input Hysteresis . . . 50 mV Typ
Operate From a Single 5-V Supply
NC–No internal connection
Function Tables
Glitch-Free Power-Up and Power-Down
Protection
DRIVER
Available in Q-Temp Automotive
HighRel Automotive Applications
Configuration Control / Print Support
Qualification to Automotive Standards
INPUT
ENABLE
OUTPUTS
D
H
L
DE
H
H
A
H
L
B
L
H
Z
X
L
Z
description
RECEIVER
The
SN55LBC176,
SN65LBC176,
DIFFERENTIAL INPUTS
A–B
ENABLE
OUTPUT
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 RS-485 and ISO
8482:1987(E).
RE
L
L
L
H
L
R
H
?
L
Z
H
V
≥ 0.2 V
ID
–0.2 V < V < 0.2 V
ID
≤ –0.2 V
X
Open
V
ID
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.
LinBiCMOS and LinASIC are trademarks of Texas Instruments Incorporated.
Copyright 2000, 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.
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.
1
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