HIN237CBZ-T

Overview

The HIN237CBZ-T is an RS-232 interface integrated circuit manufactured by Renesas Electronics. It operates on a single +5V power supply and features onboard voltage converters to generate the required ±10V levels for RS-232 communication. The device includes three drivers and two receivers, supporting data rates up to 120 kb/s. It functions within a supply voltage range of 4.5 V to 5.5 V with a typical operating current of 15 mA. Designed for surface-mount applications, it is housed in a 16-pin SOIC-Wide package and operates reliably across a temperature range of 0°C to +70°C.

Feature Summary

• Integrates onboard charge pump circuitry to eliminate the need for external dual-voltage power supplies
• Provides true TTL/CMOS input compatibility for direct interfacing with digital logic
• Features low output impedance drivers to ensure reliable signal transmission over standard cables

Applications

• Portable computers and laptop serial ports
• Industrial instrumentation and control systems
• Modems and peripheral terminals

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing from distributors. Confirm RoHS compliance status through official datasheets or manufacturer declarations. Ensure the supplier provides valid traceability documentation for the Renesas / Intersil brand origin. Cross-reference the Mouser part number 968-HIN237CBZ-T for accurate catalog identification.

Selection Notes

Select this component when a design requires three transmit channels and two receive channels within a compact footprint. It is suitable for systems constrained to a single +5V rail without available negative voltage rails. Compare against similar HIN202 variants if fewer drivers are sufficient to reduce cost. Verify that the 120 kb/s data rate meets the specific baud requirements of the target application.

Part Context

This part belongs to the HIN202/HIN232/HIN237 family of high-speed RS-232 transceivers. These devices share common architecture but differ in driver and receiver counts. The HIN237 specifically offers a 3x2 configuration, bridging the gap between the 2x2 HIN202 and higher-channel options. This family is widely used in legacy serial communication interfaces requiring robust noise immunity.

Replacement Considerations

Direct pin-compatible alternatives include the MAX237 and SP3237 series. Verify that substitute components maintain the same 3-driver, 2-receiver topology and single-supply operation. Check for equivalent data rate specifications and package dimensions to ensure mechanical fit.