HIN237CB

Overview

The HIN237CB is a dual RS-232 line driver and receiver manufactured by Harris Corporation. It operates from a single +5V supply and includes two charge pumps to generate the required positive and negative voltages for RS-232 communication. The device features low supply current, Schmitt-trigger inputs on receivers for noise filtering, and drivers capable of driving standard loads up to 5000pF. It is housed in a 16-pin SSOP package.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external voltage conversion components
• Schmitt-trigger inputs provide enhanced noise immunity for reliable data reception
• Single +5V power supply operation simplifies system design and reduces component count

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered equipment with RS-232 interfaces
• Modem and fax machine interface circuits

Procurement Notes

Verify the manufacturer source carefully as Harris Corporation's semiconductor assets were acquired by Renesas Electronics. Confirm that the specific part number HIN237CB corresponds to the original Harris datasheet specifications rather than a modern equivalent or pin-compatible replacement from other manufacturers.

Selection Notes

Select this component when designing systems that require robust RS-232 communication over noisy environments. The Schmitt-trigger inputs are particularly beneficial for applications with long cable runs or high interference. Ensure the design supports the single +5V supply requirement and accommodates the 16-pin SSOP footprint.

Part Context

The HIN series represents Harris Corporation's lineup of RS-232 transceivers designed for compatibility with standard PC serial ports. The HIN237 variant specifically offers dual channels within a compact surface-mount package, catering to space-constrained designs while maintaining performance standards for industrial and commercial serial communications.

Replacement Considerations

Renesas Electronics acquired Harris Semiconductor. Verify if the RHIN237CB or similar Renesas-branded equivalents are available. Check pinout compatibility and electrical specifications against original Harris documentation before substitution.