HIN237CBZ

Overview

The HIN237CBZ is a high-speed RS-232 transmitter and receiver interface circuit manufactured by Intersil. It meets EIA RS-232E and V.28 specifications, designed for systems lacking ±12V supplies. The device operates from a single +5V power source using onboard charge pumps to generate required voltage levels. It features TTL/CMOS compatible inputs, low power consumption, and robust noise rejection capabilities through receiver hysteresis.

Feature Summary

• Single +5V power supply operation with integrated voltage conversion
• High-speed data transmission capability up to 230kbit/s
• TTL and CMOS input compatibility for broad logic integration
• Enhanced noise immunity via receiver input hysteresis

Applications

• Portable computers and laptop serial communication ports
• Industrial instrumentation requiring RS-232 connectivity
• Peripheral devices such as printers and terminals
• Uninterruptible Power Supply (UPS) control interfaces

Procurement Notes

Verify the manufacturer designation, as Intersil was acquired by Renesas Electronics. Confirm the package type matches the CBZ suffix requirements. Ensure compliance with current RoHS standards if applicable to the specific production batch. Cross-reference the part number with official Renesas or authorized distributor catalogs to confirm availability and authenticity.

Selection Notes

Select this component when a single +5V supply is available but standard RS-232 voltage levels are required. It is suitable for applications needing high data rates without external charge pump capacitors larger than 0.1µF. Consider its power-off source impedance and input voltage range for system protection requirements.

Part Context

Intersil was acquired by Renesas Electronics in February 2017. The HIN237 series belongs to the legacy high-speed RS-232 transceiver family. This component represents the analog semiconductor technology heritage of Intersil, now maintained within Renesas's product portfolio for industrial and computing applications.