DS89C21TMX - Texas Instruments

Manufacturer Part Number

DS89C21TMX

Manufacturer

Texas Instruments

Introduction

The DS89C21TMX is an RS422/RS485 full-duplex transceiver from Texas Instruments designed for bidirectional data communication.

Product Features and Performance

Transceiver type for bidirectional communication

Supports RS422 and RS485 protocols

Operates with a single driver and single receiver (1/1 configuration)

Full Duplex allowing simultaneous transmission and reception of data

Receiver Hysteresis of 50 mV provides improved noise immunity

Data Rate of up to 20Mbps for high-speed communication

Designed for supply voltages between 4.5V and 5.5V

Suitable for operating temperatures ranging from -40°C to 85°C

Surface Mount device, fitting for compact PCB layouts

Product Advantages

High-speed operation at 20Mbps ideal for robust data communication

Suitable for harsh industrial environments with a wide operating temperature range

Hysteresis feature enhances data signal reliability in noisy conditions

Key Technical Parameters

Number of Drivers/Receivers: 1/1

Duplex: Full

Receiver Hysteresis: 50 mV

Data Rate: 20Mbps

Voltage - Supply: 4.5V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Package / Case: 8-SOIC

Quality and Safety Features

Built-in protection circuits

Compliant with industry safety standards for interfaces

Compatibility

Compatible with RS422 and RS485 communication protocols

Usable with microcontrollers and processors that accommodate the voltage range and data rates

Application Areas

Industrial Automation

Motor Control

Data Acquisition Systems

Networked Control Systems

Product Lifecycle

Obsolete - no longer in production, replacements or upgrades may be limited

It is important to consider future support and availability

Key Reasons to Choose This Product

Reliability in industrial temperature ranges

High data rate capability for fast communication

Texas Instruments known for quality and robustness in semiconductor products

Versatility in supporting both RS422 and RS485 communication standards

Ease of integration due to surface mount form factor and availability of documentation