HIN230CB

Overview

The HIN230CB is a high-speed RS-232 transmitter/receiver interface circuit manufactured by Harris Corporation. It meets EIA RS-232E and V.28 specifications, designed for applications where ±12V supplies are unavailable. The device operates from a single +5V power supply using onboard charge pump voltage converters to generate internal +10V and -10V rails. Key electrical parameters include a data rate of 120kbit/s, typical supply current of 5mA, and output swing of ±10V. It features TTL/CMOS compatible inputs, ±30V input protection on receivers, and requires external 0.1µF capacitors for the charge pump.

Feature Summary

• Onboard charge pump voltage converter eliminates need for external ±12V power supplies
• TTL and CMOS logic input compatibility with slew-rate limited outputs
• High noise immunity through receiver hysteresis and ±30V input tolerance

Applications

• Portable computer systems requiring serial communication ports
• Laptop computers and mainframe peripherals
• Industrial instrumentation and UPS systems
• Modem interfaces in space-constrained designs

Procurement Notes

Verify component authenticity against original Harris Semiconductor documentation. Confirm package type matches SSOP or SOIC requirements. Check RoHS compliance status as variants exist. Ensure ordering suffixes align with temperature range and packaging specifications. Validate supplier authorization for legacy semiconductor components.

Selection Notes

Select this component when single-supply operation is required for RS-232 interfaces. Compare data rates against higher-speed alternatives if throughput exceeds 120kbit/s. Evaluate capacitor footprint constraints as external 0.1µF capacitors are mandatory. Consider power consumption limits for battery-operated devices given the 5mA typical draw.

Part Context

Part of the HIN200-HIN213 family of +5V powered RS-232 transceivers. This series was designed to simplify serial interface design by integrating voltage conversion. Harris Corporation developed these circuits to replace traditional dual-supply solutions. The family offers various driver/receiver combinations for different application needs.

Replacement Considerations

Check for direct pin-compatible successors from Maxim Integrated or Analog Devices. Verify that alternative RS-232 transceivers support 120kbit/s speeds. Ensure replacement parts maintain single +5V supply operation without requiring additional negative voltage rails.