ISL31498EIUZ-T

Overview

The ISL31498EIUZ-T is a half-duplex, fault-protected RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates on a single 4.5V to 5.5V supply with a typical quiescent current of 2.3mA and supports data rates up to 15Mbps. The device features ±60V bus pin fault protection and an extended common mode range of ±25V. It utilizes an 8-lead MSOP package and includes hot-plug circuitry that maintains three-state outputs during power-up or power-down.

Feature Summary

• Extended common mode voltage tolerance exceeding standard RS-485 requirements
• Integrated fault protection for driver outputs and receiver inputs against high voltages
• Hot-plug capability ensuring safe insertion without disrupting the bus state

Applications

• Utility meters and automated meter reading systems
• PROFIBUS and field bus networks in factory automation
• Security camera networks
• Building lighting and environmental control systems

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging configuration required for automated assembly processes. Ensure the component meets RoHS compliance standards and matches the specified temperature range for your intended operational environment before finalizing procurement orders.

Selection Notes

Select this model when a half-duplex interface is required alongside high-speed data transmission capabilities. The integrated fault protection makes it suitable for industrial environments where bus line faults are likely. Verify that the 8-lead MSOP package dimensions align with the available PCB footprint constraints.

Part Context

This component belongs to the ISL3149xE series of differential transceivers designed to exceed RS-485 and RS-422 standards. The family offers various configurations including full-duplex options and different data rate limits. This specific part provides a balance between high speed and robust fault protection within a compact surface-mount package.

Replacement Considerations

Consult the ISL32490E datasheet for exact replacement options if newer design guidelines are required. Verify pin compatibility and electrical specifications against existing designs to ensure seamless integration without modifying the surrounding circuitry.