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SN65LBC171 Datasheet(PDF) 1 Page - Texas Instruments

Part # SN65LBC171
Description  TRIPLE DIFFERENTIAL TRANSCEIVERS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SN65LBC171 Datasheet(HTML) 1 Page - Texas Instruments

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SN65LBC171, SN75LBC171
TRIPLE DIFFERENTIAL TRANSCEIVERS
SLLS460A – NOVEMBER 2000 – REVISED FEBRUARY 2001
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Three Differential Transceivers in One
Package
D Signaling Rates1 Up to 30 Mbps
D Low Power and High Speed
D Designed for TIA/EIA-485, TIA/EIA-422, ISO
8482, and ANSI X3.277 (HVD SCSI Fast–20)
Applications
D Common-Mode Bus Voltage Range
–7 V to 12 V
D ESD Protection on Bus Terminals
Exceeds 12 kV
D Driver Output Current up to ±60 mA
D Thermal Shutdown Protection
D Driver Positive and Negative Current
Limiting
D Power-Up, Power-Down Glitch-Free
Operation
D Pin-Compatible With the SN75ALS171
D Available in Shrink Small-Outline Package
description
The
SN65LBC171
and
SN75LBC171
are
monolithic
integrated
circuits
designed
for
bidirectional data communication on multipoint
bus-transmission lines. Potential applications
include serial or parallel data transmission, cabled
peripheral buses with twin axial, ribbon, or
twisted-pair cabling. These devices are suitable
for FAST–20 SCSI and can transmit or receive
data pulses as short as 25 ns, with skew less than
3 ns.
These devices combine three 3-state differential
line drivers and three differential input line
receivers, all of which operate from a single 5-V
power supply.
The driver differential outputs and the receiver differential inputs are connected internally to form three
differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus whenever the driver
is disabled or VCC = 0. These ports feature a wide common-mode voltage range making the device suitable for
party-line applications over long cable runs.
The SN75LBC171 is characterized for operation over the temperature range of 0
°C to 70°C. The SN65LBC171
is characterized for operation over the temperature range of –40
°C to 85°C.
Copyright
 2001, 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.
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.
1The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
logic diagram
1R
1DE
1D
GND
GND
2R
2DE
2D
3R
3DE
1B
1A
RE
CDE
VCC
2B
2A
3B
3A
3D
SN65LBC171DB (Marked as BL171)
SN75LBC171DB (Marked as LB171)
SN65LBC171DW (Marked as 65LBC171)
SN75LBC171DW (Marked as 75LBC171)
(TOP VIEW)
CDE
1A
1DE
1D
RE
1R
2DE
2D
3DE
2R
3D
3R
1B
2A
2B
3A
3B
1
2
3
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5
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