ISL32277EIRZ-T

Overview

The ISL32277EIRZ-T is a quad receiver integrated circuit designed for RS-422 and RS-485 communication standards. Manufactured by Renesas Electronics, it operates within a supply voltage range of 3 V to 5.5 V and supports data transmission rates up to 20 Mb/s. The device features four independent receivers housed in a QFN-EP-24 package suitable for surface mount technology. It provides robust protection against electrostatic discharge with ratings of ±15 kV. The component functions reliably across an industrial temperature range from -40 °C to +85 °C, drawing a typical operating current of 5.5 mA.

Feature Summary

• Quad receiver architecture supporting RS-422/RS-485 protocols
• High-speed data transmission capability up to 20 Mb/s
• Integrated ±15 kV electrostatic discharge protection on all pins
• Wide operating supply voltage range from 3 V to 5.5 V

Applications

• Industrial automation control systems
• Building automation networks
• Data communication equipment
• Process control instrumentation

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Ensure the QFN-EP-24 package footprint matches the design layout. Check moisture sensitivity levels for proper storage and handling requirements prior to assembly.

Selection Notes

Select this component when a quad receiver solution is required for RS-422 or RS-485 buses. It is appropriate for designs needing high ESD immunity without external protection components. Consider the 20 Mb/s speed limit and 3 V to 5.5 V supply range compatibility. Evaluate the QFN-EP-24 thermal performance for the specific application environment.

Part Context

This part belongs to the ISL32277E series of interface ICs from Renesas. It serves as a specialized receiver-only variant within the broader RS-422/RS-485 product family. The series is engineered for reliable serial communication in noisy industrial environments. It complements other interface solutions by providing dedicated high-speed reception capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pin-to-pin compatibility and electrical specifications before considering alternative manufacturers. Consult Renesas technical support for validated cross-reference options.