HIN237IP

Overview

The HIN237IP is a dual RS-232 driver and receiver manufactured by Harris Corporation. It operates from a single +5V supply and includes on-chip voltage pumps to generate the required positive and negative voltages for RS-232 communication. The device features low power consumption, with shutdown current typically less than 10µA. It supports data rates up to 120kbps and offers ESD protection exceeding 15kV according to the human body model. The IP package denotes an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge pump eliminates external capacitors for voltage generation
• Low power shutdown mode reduces standby current significantly
• High electrostatic discharge protection ensures robust signal integrity
• Single +5V supply operation simplifies system design

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered equipment due to low power consumption
• Modems and fax machines utilizing RS-232 interfaces
• Point-of-sale terminals and barcode scanners

Procurement Notes

Verify the manufacturer datasheet for the specific HIN237IP revision. Confirm that the IP suffix correctly indicates the industrial temperature range. Ensure compatibility with existing PCB footprints and voltage levels before procurement. Check for obsolescence status directly with Harris or authorized distributors.

Selection Notes

Select this component when a dual RS-232 transceiver is needed with minimal external components. The integrated charge pump reduces board space compared to solutions requiring external voltage inverters. Consider the industrial temperature rating if the application environment varies significantly. Verify ESD requirements match the specific deployment scenario.

Part Context

Harris Corporation was a prominent manufacturer of electronic components before its acquisition by Raytheon. The HIN series represents a line of interface ICs designed for reliable serial communication. This part belongs to the family of standard RS-232 drivers and receivers widely used in legacy and industrial systems.

Replacement Considerations

Common substitutes include the MAX232 and SP3232 families. Verify pin compatibility and electrical specifications such as drive strength and ESD ratings. Ensure the replacement supports the same single-supply operation and package type.