HIN237CP

Overview

The HIN237CP is a low-power, dual RS-232 transceiver manufactured by Harris Corporation. It operates from a single +5V supply and incorporates internal charge pumps to generate the required positive and negative voltages for RS-232 communication. The device features receive inputs that are tolerant to ±30V overvoltage protection. It supports data rates up to 120 kbps and includes shutdown mode functionality to minimize power consumption during idle periods.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external voltage conversion components
• Receive input pins provide tolerance against high-voltage signals up to ±30V
• Shutdown capability allows for significant reduction in supply current during non-operational states

Applications

• Industrial equipment requiring serial communication interfaces
• Test and measurement instruments with RS-232 connectivity
• Embedded systems utilizing microcontroller-based serial data exchange

Procurement Notes

Verify the manufacturer origin carefully as Harris Corporation's semiconductor assets were acquired by Intersil and subsequently by Renesas. Ensure the component matches the specific package type and temperature grade indicated on the marking. Confirm datasheet revisions align with the production batch date code to guarantee electrical parameter compliance.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with minimal external bill of materials. It is suitable for applications where space constraints prevent the use of discrete charge pump circuits. Consider the operating temperature range and package availability when designing for long-term production runs.

Part Context

This part belongs to the family of standard RS-232 transceivers designed for reliable serial communication. Harris Corporation produced these devices before its semiconductor division was restructured. The HIN237CP specifically addresses the need for robust, low-cost serial interface solutions in commercial and industrial environments.

Replacement Considerations

Direct replacements include the MAX237 or MAX237A from Maxim Integrated (now Analog Devices). Other compatible alternatives may include the ST237 from STMicroelectronics. Verify pin compatibility and electrical specifications before substituting.