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RS-422/RS-485 Interface IC Quad Diff Line

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SN75173N General Description

The SN55173, SN65173, and SN75173 are monolithic quadruple differential line receivers with 3-state outputs. They are designed to meet the requirements of TIA/EIA-422-B, TIA/EIA-423-B, TIA/EIA-485-A, and several ITU recommendations. The standards are for balanced multipoint bus transmission at rates up to 10 megabits per second. The four receivers share two OR enable inputs, one active when high, the other active when low. These devices feature high input impedance, input hysteresis for increased noise immunity, and input sensitivity of ±200 mV over a common-mode input voltage range of \x9612 V to 12 V. Fail-safe design specifies that if the inputs are open circuited, the outputs are always high. The SN65173 and SN75173 are designed for optimum performance when used with the SN75172 or SN75174 quad differential line drivers.

The SN55173 is characterized over the full military temperature range of \x9655°C to 125°C. The SN65173 is characterized for operation from \x9640°C to 85°C. The SN75173 is characterized for operation from 0°C to 70°C.


Key Features

  • Meet or Exceed the Requirements of TIA/EIA-422-B, TIA/EIA-423-B, and TIA/EIA-485-A and ITU Recommendations V.10, V.11, X.26, and X.27
  • Designed for Multipoint Bus Transmission on Long Bus Lines in Noisy Environments
  • 3-State Outputs
  • Common-Mode Input Voltage Range of \x9612 V to 12 V
  • Input Sensitivity . ±200 mV
  • Input Hysteresis . . . 50 mV Typ
  • High Input Impedance . . . 12 k Min
  • Operate From Single 5-V Supply
  • Low Power Requirements
  • Pin-to-Pin Replacement for AM26LS32


Category Integrated Circuits (ICs)InterfaceDrivers, Receivers, Transceivers Mfr Texas Instruments
Series - Package Tube
Product Status Active Type Receiver
Protocol RS422, RS423, RS485 Number of Drivers/Receivers 0/4
Duplex - Receiver Hysteresis 50 mV
Data Rate - Voltage - Supply 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C Mounting Type Through Hole
Package / Case 16-DIP (0.300", 7.62mm) Supplier Device Package 16-PDIP
Base Product Number SN75173

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Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

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If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

L**e Jul 04, 2023

Plates nāca vairāk pair mēnesi.Pašas plates ir labas.Ladē ar 1 ampēru jaudu.

M**n Jul 04, 2022

I got only 99 instead of 100 pieces but no problem...tested, ok

A**n Nov 04, 2021

Delivery to kiev 24 days, goods of normal quality, you can safely buy.

B**n May 29, 2021

The goods came. Kind of quality. I did not communicate with the seller. Laser engraving. In the fee has not yet soldered and did not check



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