ISL3179EIUZ

Overview

The ISL3179EIUZ is a single RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates on a single 3.3V power supply and supports data rates up to 40 Mb/s. The device features high ESD protection compliant with IEC61000 standards, ensuring robust performance in harsh environments. It presents a low bus current load of +220µA/-150µA, equivalent to a 1/5 unit load, allowing for extensive network configurations without repeaters. The receiver inputs incorporate a full fail-safe design to maintain a logic high output during floating or shorted conditions. Hot plug circuitry keeps outputs in a high impedance state during power-up.

Feature Summary

• High ESD protection on RS-485 I/O pins meeting IEC61000 standards
• Full fail-safe receiver design ensures defined logic states under fault conditions
• Hot plug functionality maintains high impedance outputs during power stabilization
• Low bus current consumption enables high node density on the communication bus

Applications

• Industrial automation networks requiring reliable half-duplex communication
• Building automation systems utilizing RS-485 protocols
• Meter reading infrastructure with multiple nodes on a shared bus
• Process control equipment operating in electrically noisy environments

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the component matches the required RoHS compliance status for your assembly process. Cross-reference the datasheet revision date to confirm technical accuracy before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high-speed data transmission up to 40 Mbps over balanced lines. It is suitable for designs needing integrated ESD protection and fail-safe capabilities without external components. Consider the MSOP-8 package constraints regarding thermal dissipation and board space availability when integrating into the system layout.

Part Context

This part belongs to the ISL317xE series of high ESD protected transceivers from Renesas. The series includes variants such as the ISL3170E and ISL3180E, offering different duplex modes and unit load characteristics. These devices are designed to meet RS-485 and RS-422 standards while providing enhanced reliability through integrated protection features.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.