SN75176A_07 Datasheet, PDF (1/19 Pages) Texas Instruments – DIFFERENTIAL BUS TRANSCEIVER

SN75176A
DIFFERENTIAL BUS TRANSCEIVER
D Bidirectional Transceiver
D Meets or Exceeds the Requirements of
ANSI Standards EIA/TIA-422-B and ITU
Recommendation V.11
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D 3-State Driver and Receiver Outputs
D Individual Driver and Receiver Enables
D Wide Positive and Negative Input /Output
Bus Voltage Ranges
D Driver Output Capability . . . ± 60 mA Max
D Thermal-Shutdown Protection
D Driver Positive- and Negative-Current
Limiting
D Receiver Input Impedance . . . 12 kΩ Min
D Receiver Input Sensitivity . . . ± 200 mV
D Receiver Input Hysteresis . . . 50 mV Typ
D Operates From Single 5-V Supply
D Low Power Requirements
SLLS100A – JUNE 1984 – REVISED MAY 1995
D OR P PACKAGE
(TOP VIEW)
R1
RE 2
DE 3
D4
8 V_CC
7B
6A
5 GND
description
The SN75176A 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 EIA/TIA-422-B and ITU Recommendation V.11.
The SN75176A combines 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 externally connected together 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 whenever 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.
The driver is designed to handle loads up to 60 mA of sink or source current. The driver features positive- and
negative-current limiting and thermal shutdown for protection from line fault conditions. Thermal shutdown is
designed to occur at a junction temperature of approximately 150°C. The receiver features a minimum input
impedance of 12 kΩ, an input sensitivity of ± 200 mV, and a typical input hysteresis of 50 mV.
The SN75176A can be used in transmission-line applications employing the SN75172 and SN75174 quadruple
differential line drivers and SN75173 and SN75175 quadruple differential line receivers.
The SN75176A is characterized for operation from 0°C to 70°C.
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.
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.
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Copyright © 1995, Texas Instruments Incorporated
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