Datasheet

SN65176B, SN75176B
DIFFERENTIAL BUS TRANSCEIVERS
SLLS101D – JULY 1985 – REVISED APRIL 2003
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Bidirectional Transceivers
Meet or Exceed the Requirements of ANSI
Standards TIA/EIA-422-B and TIA/EIA-485-A
and ITU Recommendations V.11 and X.27
Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
3-State Driver and Receiver Outputs
Individual Driver and Receiver Enables
Wide Positive and Negative Input/Output
Bus Voltage Ranges
Driver Output Capability . . . ±60 mA Max
Thermal Shutdown Protection
Driver Positive and Negative Current
Limiting
Receiver Input Impedance . . . 12 k Min
Receiver Input Sensitivity . . . ±200 mV
Receiver Input Hysteresis . . . 50 mV Typ
Operate From Single 5-V Supply
description/ordering information
The SN65176B and SN75176B differential bus transceivers are integrated circuits designed for bidirectional
data communication on multipoint bus transmission lines. They are designed for balanced transmission lines
and meet ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.11 and X.27.
The SN65176B and SN75176B 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, that can be connected together externally to function as a direction control. The driver
differential outputs and the receiver differential inputs are connected internally to form differential input/output
(I/O) bus ports that are designed to offer minimum loading to the bus when the driver is disabled or V
CC
= 0.
These ports feature wide positive and negative common-mode voltage ranges, making the device suitable for
party-line applications.
ORDERING INFORMATION
T
A
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP (P) Tube of 50 SN75176BP SN75176BP
0
°
Cto70
°
C
SOIC (D)
Tube of 75 SN75176BD
75176B
0°C
to
70°C
SOIC
(D)
Reel of 2500 SN75176BDR
75176B
SOP (PS) Reel of 2000 SN75176BPSR A176B
PDIP (P) Tube of 50 SN65176BP SN65176BP
–40°C to 105°C
SOIC (D)
Tube of 75 SN65176BD
65176B
SOIC
(D)
Reel of 2500 SN65176BDR
65176B
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright 2003, 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.
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2
3
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8
7
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5
R
RE
DE
D
V
CC
B
A
GND
SN65176B ...D OR P PACKAGE
SN75176B . . . D, P, OR PS PACKAGE
(TOP VIEW)
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.

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