HIN202ECB

Overview

The Intersil HIN202ECB is a dual driver and dual receiver RS-232 transceiver designed for single +5V power supply operation. It integrates onboard charge pump voltage converters to generate the necessary positive and negative supplies from the 5V input, eliminating the need for external ±12V sources. The device supports data rates up to 230 kbits/s, meeting EIA high-speed RS-232E and V.28 specifications. It features true TTL/CMOS input compatibility and includes hysteresis in receivers to enhance noise rejection. The component provides ±15kV ESD protection on I/O pins and operates within a commercial temperature range.

Feature Summary

• Integrates onboard charge pump circuitry to generate internal ±10V supplies from a single +5V source
• Provides ±15kV electrostatic discharge (ESD) protection on RS-232 I/O pins per IEC61000 standards
• Features slew rate-limited outputs and hysteresis receivers for improved signal integrity and noise immunity

Applications

• ISDN terminal adapters and modems requiring high-speed serial communication
• Battery-powered equipment utilizing low power shutdown modes available in related family members
• Industrial control systems needing robust ESD protection without external high-voltage rails

Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the ordering part number matches the required RoHS compliance status and lead time requirements. Cross-reference the manufacturer designation with Renesas Electronics, as Intersil product lines are now managed under this entity. Confirm availability of the specific tape-and-reel or tube packaging option needed for the assembly process.

Selection Notes

Select this component when designing systems that require full-duplex RS-232 communication but lack access to negative voltage rails. The integrated charge pump simplifies board layout by reducing external capacitor count compared to older generations. Consider the 230 kbits/s speed limit for applications exceeding standard 9600 baud rates. Evaluate the ±15kV ESD rating for environments prone to static discharge events. Verify that the 15 mA operating current aligns with the system's power budget constraints.

Part Context

The HIN202ECB belongs to the HIN202E/HIN232E family of RS-232 transceivers manufactured by Intersil, now part of Renesas Electronics. This family was engineered to replace legacy components requiring complex external charge pumps or dual power supplies. The 'EC' suffix typically denotes a specific package variant and industrial/commercial temperature rating within the broader HIN series lineup.

Replacement Considerations

Direct replacements include the HIN232E for single-driver configurations or other devices within the HIN202E/HIN232E family. Check for equivalent parts from MaxLinear or Texas Instruments offering similar 5V-only operation and ESD ratings. Ensure pinout compatibility before substituting to avoid redesigning the PCB footprint.