HIN232ACPZ

Overview

The HIN232ACPZ is a high-speed, +5V powered RS-232 transmitter/receiver interface circuit manufactured by Renesas Electronics. It meets EIA RS-232E and V.28 specifications, utilizing an onboard charge pump to generate ±10V supplies from a single +5V source. The device features two drivers and two receivers with true TTL/CMOS input compatibility. Key electrical parameters include a data rate of 230 kbit/s, typical supply current of 5 mA, and ±15kV ESD protection on bus pins. It operates within a temperature range of 0°C to +70°C and requires external 0.1µF capacitors for the voltage converter.

Feature Summary

• Onboard voltage doubler and inverter eliminates need for external ±12V power supplies
• High data rate capability up to 230 kbit/s suitable for ISDN and high-speed modems
• Integrated ±15kV electrostatic discharge (ESD) protection on transceiver lines
• Receiver inputs feature hysteresis to significantly improve noise rejection performance

Applications

• Portable computers, laptops, and mainframe systems requiring serial communication
• Peripheral connections including printers and terminals
• Instrumentation and Uninterruptible Power Supply (UPS) control interfaces
• Modems and ISDN terminal adaptors

Procurement Notes

Verify the specific suffix 'CPZ' against official Renesas documentation to confirm package type and RoHS compliance status. Ensure the ordering part number matches the required temperature grade and pin configuration. Cross-reference with authorized distributors to confirm availability of the exact variant, as suffixes often denote packaging or environmental certifications distinct from the base functional model.

Selection Notes

Select this component when a single +5V supply is available but RS-232 voltage levels are required without external negative voltage generation. It is appropriate for designs needing moderate speed (up to 230 kbit/s) and robust ESD protection. Compare against other HIN232 variants if different driver/receiver counts or shutdown modes are needed. Verify that the 0.1µF charge pump capacitor requirement fits the board space constraints.

Part Context

The HIN232ACPZ belongs to the HIN232E family of RS-232 transceivers designed for high-speed applications where traditional ±12V supplies are unavailable. This family integrates charge pumps to simplify power design. The HIN232 variant specifically provides two drivers and two receivers, balancing channel count with low power consumption. It serves as a direct replacement for older Harris Semiconductor versions under the Renesas portfolio.

Replacement Considerations

Official substitutes within the same family include HIN232ACBNZ and HIN232ACWZ, which share identical electrical characteristics but differ in package style (SOIC Narrow vs. SOIC Wide). Verify pinout compatibility before substitution. Other family members like HIN202E or HIN213E offer different driver/receiver configurations or additional shutdown features.