HIN232CBZ

Overview

The HIN232CBZ is a high-speed RS-232 transmitter/receiver interface circuit manufactured by Renesas Electronics Corporation. It meets all EIA RS-232E and V.28 specifications, designed for applications lacking ±12V power supplies. The device operates on a single +5V supply, utilizing onboard charge pump voltage converters to generate the necessary internal voltages. Key electrical parameters include a data rate of 230 kbit/s, a typical operating supply current of 5 mA, and an operating temperature range from 0°C to +70°C. It features true TTL/CMOS input compatibility, ±10V output swing, and receivers with ±30V input voltage range capability.

Feature Summary

• Onboard charge pump voltage converters eliminate the need for external ±12V power supplies
• High data rate performance up to 230 kbit/s for efficient communication
• True TTL/CMOS input compatibility ensures seamless integration with logic circuits
• Receivers feature hysteresis to significantly improve noise rejection

Applications

• Portable computers, mainframes, and laptops requiring high-speed serial ports
• Peripheral devices such as printers and terminals
• Instrumentation systems and uninterruptible power supplies (UPS)
• Modems and ISDN terminal adaptors

Procurement Notes

Verify the specific suffix 'CBZ' against the manufacturer's official datasheet to confirm package type and RoHS compliance status. Ensure the ordering documentation matches the exact part number to avoid confusion with similar variants in the HIN232 series that may have different pinouts or electrical characteristics.

Selection Notes

Select this component when a single +5V supply is available but ±12V rails are absent. It is suitable for designs requiring 2 drivers and 2 receivers with high-speed data transmission needs. Verify that the system environment stays within the 0°C to +70°C commercial temperature range and that external 0.1µF capacitors can be accommodated for the charge pump circuit.

Part Context

This part belongs to the HIN232-HIN241 series of RS-232 transceivers. These devices are engineered to replace traditional dual-supply solutions, simplifying board design by integrating voltage conversion directly onto the chip. The series is widely used in legacy and modern serial communication interfaces where reliability and low power consumption are prioritized.

Replacement Considerations

Direct replacements within the same family include HIN232ACBNZ and HIN232ECBZ. Verify pin compatibility and electrical specifications before substitution, as variations in driver strength or receiver sensitivity may exist between specific suffixes.