HIN239IB

Overview

The HIN239IB is a full-duplex RS-232 transceiver manufactured by Harris Corporation. It integrates three drivers and five receivers, supporting data rates up to 120 Kbps. The device operates from a single 5V supply or dual supplies ranging from 7.5V to 13.2V. It features 500 mV receiver hysteresis for noise immunity and includes ESD protection on all pins. Packaged in a 24-pin SOIC, it is designed for industrial environments with an operating temperature range of 0°C to 70°C.

Feature Summary

• Integrates three independent drivers and five independent receivers for complex serial communication
• Provides enhanced noise immunity through built-in receiver hysteresis
• Supports flexible power configurations using either a single 5V source or dual voltage supplies
• Includes electrostatic discharge protection circuitry on all input and output pins

Applications

• Industrial control systems requiring reliable RS-232 connectivity
• Data acquisition equipment utilizing multiple serial ports
• Embedded systems needing robust signal transmission in electrically noisy environments

Procurement Notes

Verify the specific suffix 'IB' against official manufacturer documentation to confirm the exact temperature grade and package variant. Confirm current production status as older Harris components may be discontinued. Ensure compatibility with existing board layouts regarding the 24-SOIC footprint before procurement.

Selection Notes

Select this component when designing circuits requiring three transmit and five receive channels within a single integrated circuit. It is suitable for applications demanding high noise tolerance due to its internal hysteresis. Consider alternative parts if lower power consumption or higher data rates are required compared to standard RS-232 specifications.

Part Context

This part belongs to the HIN23x series of RS-232 transceivers originally developed by Harris Semiconductor. The series is known for providing complete interface solutions for personal computers and modems. Harris Corporation's semiconductor division was later acquired by Renesas Electronics, which continues to manage the legacy product line.

Replacement Considerations

Direct substitutes include the MAX239CWG+ from Analog Devices/Maxim Integrated. Verify pin-to-pin compatibility and electrical parameter alignment with the original datasheet before substitution.