ISL31495EIUZ-T7A

Overview

The ISL31495EIUZ-T7A is a half-duplex RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 1Mbps. The device features ±60V fault protection on bus pins and an extended common mode range of ±25V. It utilizes an 8-pin MSOP package with tape-and-reel packaging indicated by the -T7A suffix. Key electrical parameters include a typical quiescent current of 2.3mA, shutdown current of 10µA, and a differential output voltage of 2.5V into a 54Ω load.

Feature Summary

• Fault protected RS-485 bus pins withstand up to ±60V
• Extended common mode range of ±25V exceeds standard requirements
• Full fail-safe receiver design ensures logic high output during open or shorted conditions
• Hot plug circuitry maintains three-state outputs during power-up and power-down

Applications

• Utility meters and automated meter reading systems
• High node count communication networks
• PROFIBUS and field bus networks in factory automation
• Security camera networks
• Industrial process control systems

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging format. The -T7A suffix indicates tape and reel configuration. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Cross-reference the datasheet revision number to ensure alignment with current manufacturing specifications and pinout definitions.

Selection Notes

Select this component for applications requiring robust fault protection and extended common mode voltage tolerance. The half-duplex architecture suits bidirectional communication needs. Ensure the system operates within the specified 4.5V to 5.5V supply range. Consider the 1Mbps data rate capability when designing network timing constraints. Verify thermal management requirements for the MSOP package in enclosed environments.

Part Context

This part belongs to the ISL3149xE series of fault-protected, 5V powered differential transceivers. The series includes variants supporting different duplex modes and data rates. The ISL31495E specifically provides half-duplex operation at 1Mbps. The family shares common features such as ±60V fault protection and full fail-safe receivers, differing primarily in speed and duplex configuration.

Replacement Considerations

Consult the ISL32490E series datasheet for exact replacements if new designs are required. Verify pin compatibility and electrical specifications before substituting other RS-485 transceivers. Ensure alternative components support the same ±60V fault protection and ±25V common mode range.