HIN202CA

Overview

The HIN202CA 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. It features two drivers and two receivers with TTL/CMOS input compatibility. Key electrical parameters include a data rate of 120 kbit/s, an operating temperature range of 0°C to +70°C, and the requirement for external 0.1µF capacitors for the charge pump.

Feature Summary

• Onboard charge pump voltage converters eliminate the need for external ±12V power supplies
• TTL and CMOS compatible inputs ensure direct interfacing with standard logic families
• High noise rejection capability provided by receiver hysteresis

Applications

• Portable computers and laptop systems requiring compact serial interfaces
• Industrial instrumentation and UPS communication ports
• Peripheral connections such as printers and terminals

Procurement Notes

Verify the specific suffix 'CA' against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status as older Harris batches may differ. Check current availability through authorized distributors or Renesas Electronics, which acquired the product line. Ensure ordering documentation matches the exact part number to avoid functional mismatches in production.

Selection Notes

Select this component when a single +5V supply is available but ±12V generation is impractical due to space constraints. Compare against the HIN232 series if higher data rates or additional drivers are required. Verify that the 120 kbit/s speed meets system requirements. Consider the HIN203 variant if external capacitors must be eliminated entirely.

Part Context

The HIN202CA belongs to the HIN200-HIN213 family of RS-232 transceivers originally developed by Harris Semiconductor. This family established the standard for low-voltage RS-232 operation. The product line was later integrated into Intersil and subsequently Renesas Electronics. The CA suffix typically denotes a commercial temperature range and specific packaging configuration within this legacy portfolio.

Replacement Considerations

The HIN202CPZ (Intersil/Renesas) serves as a direct pin-compatible replacement. The HIN232ACBNZ offers similar functionality with potentially updated manufacturing processes. Verify pinout compatibility before substitution.