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SN75176BP

TISN75176BP

Texas Instruments
1/1 Transceiver Half RS422, RS485 8-PDIP
Active10,467 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The SN75176BP is a differential bus transceiver designed for bidirectional data communication on multipoint bus transmission lines. It combines a 3-state differential line driver and a differential input line receiver, both of which operate from a single 5V power supply. This specific variant comes in a 8-pin through-hole PDIP package, making it a staple for industrial prototyping and robust serial communication.

Why Choose This Part

The device features a high 12k ohm minimum receiver input impedance and typical receiver input hysteresis of 50mV for improved noise immunity. It includes thermal shutdown protection and current limiting for both positive and negative driver outputs, ensuring reliability under fault conditions.

Applications

RS-485 Multi-point Networks
Connecting multiple nodes over long distances in industrial environments using differential signaling.
RS-422 Point-to-Point Communication
Implementing high-speed, balanced voltage digital interface circuits.
Industrial Control Systems
Facilitating communication between PLCs, sensors, and actuators in electrically noisy environments.
Breadboard Prototyping
Evaluating serial communication protocols on a breadboard without the need for surface-mount soldering.

Key Specifications

Type Transceiver
Duplex Half
Protocol RS422, RS485
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Voltage - Supply 4.75V ~ 5.25V
Receiver Hysteresis 50 mV
Operating Temperature 0degC ~ 70degC
Supplier Device Package 8-PDIP
Number of Drivers/Receivers 1/1

Getting Started

To use this transceiver, connect the A and B lines to the RS-485 bus and the RO/DI pins to your microcontroller UART. Ensure the RE (Receiver Enable) and DE (Driver Enable) pins are managed by your firmware to control the half-duplex direction. A 120-ohm termination resistor should be placed at the physical ends of the bus for signal integrity.

Part of RS-485 Transceivers family » SN75176

SN75176 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
SN75176BP (this part) DIP-8 10,467
SN75176BDR SOIC-8 32,020
Also available as: SN75176BDRE4

Also Consider

MAX485EPA+ Maxim Integrated / Analog Devices - A widely used equivalent in an 8-PDIP package with lower power consumption.
SN65HVD3082EP TITexas Instruments - An upgraded version offering lower power and 1/8 unit load for connecting up to 256 nodes on a single bus.
SN75176BDR TITexas Instruments - The SOIC-8 surface-mount version of the same transceiver for compact production PCB designs.

Categories

Interface ICs > UART / RS-232 / RS-485 Industrial & Automation > Industrial Communication