HIN235ECP

Overview

The HIN235ECP is a low-power, 3.3V-compatible RS-232 transceiver manufactured by Harris Corporation. It integrates two drivers and two receivers on a single chip, supporting data rates up to 120 kbps. The device operates from a single +3.0V to +3.6V supply and includes internal charge pumps that generate the required ±5.5V for RS-232 signaling without external components. Key features include ESD protection exceeding ±15kV (HBM) and latch-up resistance per JESD 78 Class II standards.

Feature Summary

• Integrated dual charge pump circuitry eliminates the need for external capacitors in standard configurations.
• Provides robust electrostatic discharge protection rated at ±15kV according to Human Body Model specifications.
• Ensures system reliability through high-level latch-up immunity compliant with industry stress testing standards.

Applications

• Portable battery-powered equipment requiring low current consumption
• Industrial control systems needing reliable serial communication interfaces
• Modems and fax machines utilizing RS-232 protocols

Procurement Notes

Verify the specific suffix 'ECP' against official manufacturer documentation to confirm package type and temperature range. Ensure compatibility with 3.3V logic levels if interfacing with modern microcontrollers. Request RoHS compliance certificates and material declarations prior to finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require RS-232 connectivity with minimal external passive components. It is suitable for applications where power efficiency is critical due to its low standby current. Compare pinout compatibility with existing designs if substituting from other manufacturers like Maxim or Texas Instruments.

Part Context

This part belongs to the IN232/IN233 family of RS-232 transceivers produced by Harris Semiconductor, which was later acquired by Intersil and subsequently Renesas Electronics. The HIN235 variant specifically targets 3.3V operation, distinguishing it from traditional 5V-only counterparts in the same product line.

Replacement Considerations

Publicly confirmed substitutes include the MAX235CPE and the SP235ECN. Verify pin-to-pin compatibility and electrical characteristics before implementation.