ISL31498EIBZ-T

Overview

The ISL31498EIBZ-T is a half-duplex, fault-protected RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It supports data rates up to 15Mbps with an extended common mode range of ±25V and bus pin protection up to ±60V. The device operates on a single 4.5V to 5.5V supply, drawing 2.3mA quiescent current and 10µA in shutdown mode. It features full fail-safe receiver inputs and hot-plug capability. Packaged in an 8-lead SOIC (M8.15) for industrial temperatures ranging from -40°C to +85°C.

Feature Summary

• Fault protection for RS-485 bus pins up to ±60V with high transient overvoltage tolerance
• Extended common mode voltage range supporting operation up to ±25V
• Full fail-safe receiver design ensuring logic high output during open, shorted, or idle bus conditions
• Hot-plug circuitry maintaining three-state outputs during power-up and power-down

Applications

• Utility meters and automated meter reading systems
• PROFIBUS and field bus networks
• Security camera networks
• Industrial and process control networks

Procurement Notes

Verify the specific ordering suffix '-T' corresponds to tape and reel packaging as defined in manufacturer tech briefs. Confirm the 'IBZ' designation indicates the 8-lead SOIC package variant. Ensure compliance with RoHS standards and check for any product change notices regarding label updates or manufacturing site changes before finalizing procurement.

Selection Notes

Select this component for applications requiring high-speed 15Mbps communication over RS-485 buses with robust fault protection. The half-duplex configuration is suitable for multiplexed driver and receiver lines. Verify that the 8-pin SOIC footprint meets board space requirements and that the ±60V fault tolerance aligns with the system's electrical environment specifications.

Part Context

This part belongs to the ISL3149xE family of differential transceivers designed to exceed standard RS-485 and RS-422 requirements. The family includes variants with different data rates and duplex configurations. The ISL31498E specifically provides high-speed half-duplex performance within a compact 8-lead package, distinguishing it from the full-duplex counterparts in the series.

Replacement Considerations

Public confirmed substitute: ISL32498E Series.