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SN65LBC176 Datasheet Preview

SN65LBC176 Datasheet

Differential Bus-Transceivers

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SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176
DIFFERENTIAL BUS TRANSCEIVERS
D Bidirectional Transceiver
D Meets or Exceeds the Requirements of
ANSI Standard TIA/EIA485A 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/EIA485A (RS-485)
and ISO 8482:1987(E).
SLLS067H AUGUST 1990 REVISED DECEMBER 2010
D, JG, OR P PACKAGE
(TOP VIEW)
R1
RE 2
DE 3
D4
8 VCC
7B
6A
5 GND
FK PACKAGE
(TOP VIEW)
NC
3 2 1 20 19
4
18
NC
RE 5
17 B
NC 6
16 NC
DE 7
15 A
NC 8
14 NC
9 10 11 12 13
NC No internal connection
Function Tables
INPUT
D
H
L
X
DRIVER
ENABLE
DE
H
H
L
OUTPUTS
AB
HL
LH
ZZ
RECEIVER
DIFFERENTIAL INPUTS
VID = VIA VIB
VID 0.2 V
0.2 V < VID < 0.2 V
VID 0.2 V
X
Open
ENABLE
RE
L
L
L
H
L
H = high level, L = low level, ? = indeterminate,
X = irrelevant, Z = high impedance (off)
OUTPUT
R
H
?
L
Z
H
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.
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 © 20002006, 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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1




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SN65LBC176 Datasheet Preview

SN65LBC176 Datasheet

Differential Bus-Transceivers

No Preview Available !

SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176
DIFFERENTIAL BUS TRANSCEIVERS
SLLS067H AUGUST 1990 REVISED DECEMBER 2010
description (continued)
The SN55LBC176, SN65LBC176, SN65LBC176Q, and SN75LBC176 combine a 3-state, differential line driver
and a differential input line receiver, both of which operate from a single 5-V power supply. The driver and
receiver have active-high and active-low enables, respectively, which can externally connect together to
function as a direction control. The driver differential outputs and the receiver differential inputs connect
internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus
whenever the driver is disabled or VCC = 0. This port features wide positive and negative common-mode voltage
ranges, making the device suitable for party-line applications. Very low device supply current can be achieved
by disabling the driver and the receiver.
These transceivers are suitable for ANSI Standard TIA/EIA485 (RS-485) and ISO 8482 applications to the
extent that they are specified in the operating conditions and characteristics section of this data sheet. Certain
limits contained in TIA/EIA485A and ISO 8482:1987 (E) are not met or cannot be tested over the entire military
temperature range.
The SN55LBC176 is characterized for operation from 55°C to 125°C. The SN65LBC176 is characterized for
operation from 40°C to 85°C, and the SN65LBC176Q is characterized for operation from 40°C to 125°C.
The SN75LBC176 is characterized for operation from 0°C to 70°C.
logic symbol
logic diagram (positive logic)
DE 3
2
RE
EN1
EN2
4
D
6
1
A
1
7
B
3
DE
4
D
2
RE
1
R
6
A
7B
Bus
R1
2
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
TA
0°C to 70°C
40°C to 85°C
40°C to 125°C
55°C to 125°C
AVAILABLE OPTIONS
PACKAGE
PART NUMBER
SOP
SN75LBC176D
PDIP
SN75LBC176P
SOP
SN65LBC176D
PDIP
SN65LBC176P
SOP
SN65LBC176QD
SOP
SN65LBC176QDR
LCCC
SNJ55LBC176FK
CDIP
SNJ55LBC176JG
PART MARKING
7LB176
75LBC176
6LB176
65LBC176
LB176Q
LB176Q
SNJ55LBC176FK
SNJ55LBC176
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN65LBC176
Description Differential Bus-Transceivers
Maker etcTI
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SN65LBC176 Datasheet PDF






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