DS89C21TM - Texas Instruments

Manufacturer Part Number

DS89C21TM

Manufacturer

Texas Instruments

Introduction

The DS89C21TM is a high-speed transceiver designed for RS422 and RS485 communication protocols, enabling full-duplex data exchange.

Product Features and Performance

Supports RS422 and RS485 protocols

Full duplex communication

Data Rate up to 20Mbps

Operating Voltage range of 4.5V to 5.5V

Receiver Hysteresis: 50 mV

Operational Temperature range: -40°C to 85°C

Surface Mount 8-SOIC Package

Product Advantages

High data rate support enhances system performance

Wide operating voltage and temperature range suitable for harsh environments

Receiver hysteresis improves noise immunity

Compact 8-SOIC package saves board space

Key Technical Parameters

Protocol: RS422, RS485

Number of Drivers/Receivers: 1/1

Duplex: Full

Data Rate: 20Mbps

Voltage Supply: 4.5V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package/Case: 8-SOIC

Quality and Safety Features

Manufactured by Texas Instruments, ensuring high reliability and performance

Meets stringent industry standards for quality and safety

Compatibility

Compatible with RS422 and RS485 communication standards

Application Areas

Industrial Control

Networking Equipment

Data Acquisition Systems

Point of Sale Systems

Product Lifecycle

The DS89C21TM is marked as Obsolete, indicating that it is nearing discontinuation

Customers should seek replacements or upgrades for future designs

Several Key Reasons to Choose This Product

High-speed data transmission capability improves system performance

Supports popular RS422 and RS485 communication standards for broad application compatibility

Designed by Texas Instruments, a trusted name in the semiconductor industry

Its wide operating conditions make it suitable for a variety of challenging environments

Obsolescence status encourages looking into next-generation solutions for long-term projects