HIN231CB

Overview

The HIN231CB is a high-speed RS-232 transmitter/receiver interface circuit manufactured by Harris Corporation. It meets EIA-232E and V.28 specifications, requiring only a single +5V power supply due to onboard charge pump voltage converters that generate +10V and -10V supplies. The device features one driver with true TTL/CMOS input compatibility and one receiver with hysteresis for improved noise rejection. It operates within a temperature range of 0°C to +70°C and utilizes a 16-pin SOICN package.

Feature Summary

• Single +5V power supply operation with integrated onboard charge pump voltage converters
• High data rate capability up to 230kbit/s
• TTL/CMOS compatible inputs with slew-rate-limited outputs
• Receiver hysteresis designed to significantly improve noise rejection

Applications

• Portable computers and laptops
• Mainframe computer systems
• Printers and terminals
• Instrumentation equipment
• Modems

Procurement Notes

Verify the specific suffix 'CB' against official Harris or Intersil documentation to confirm exact package type and temperature grade. Ensure compliance requirements match project needs, as standard versions may not be RoHS compliant while 'Z' suffix variants are. Confirm availability status directly with authorized distributors.

Selection Notes

Select this component when a single +5V supply is available but ±12V rails are absent. It is suitable for applications requiring moderate data rates up to 230kbit/s. Consider the HIN232A if multiple drivers or receivers are needed, or the HIN231ACBNZ for lead-free RoHS compliance in the same package.

Part Context

The HIN231CB belongs to the HIN23x series of high-speed RS-232 transceivers from Harris Corporation. This family is characterized by low power consumption and the elimination of external dual-voltage supplies through internal charge pumps. The series includes variants like the HIN231 (single driver/receiver) and HIN232 (dual driver/receiver).

Replacement Considerations

The HIN231ACBNZ is a verified lead-free, RoHS-compliant alternative in the same SOIC-16 package. Other functional equivalents include the MAX232 or SP3232 families, though pinouts and capacitor requirements should be verified.