ISL31495EIUZ

Overview

The ISL31495EIUZ is a half-duplex, fault-protected RS-485 transceiver manufactured by Renesas Electronics Corporation. It operates on a single 5V supply and supports data rates up to 1 Mbps with slew-rate limiting enabled. The device features ±60V fault protection on bus pins and an extended common-mode voltage range of ±25V. It includes hot-plug circuitry that maintains three-state outputs during power-up or power-down events. The component is housed in an 8-lead MSOP package and is rated for operation from -40°C to +85°C.

Feature Summary

• Half-duplex architecture with integrated driver and receiver multiplexing
• Robust fault protection handling up to ±60V on differential bus lines
• Extended common-mode voltage tolerance exceeding standard RS-485 requirements
• Hot-plug capability ensuring safe insertion without bus disruption

Applications

• Utility meters and automated meter reading systems
• PROFIBUS and fieldbus networks in factory automation
• Security camera networks
• Building lighting and environmental control systems
• Industrial process control networks

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature range. Ensure the procurement channel provides RoHS-compliant components. Cross-reference the part marking with official documentation to authenticate the source before integration into production designs.

Selection Notes

Select this model when a half-duplex interface is required alongside high noise immunity and robust fault tolerance. The 1 Mbps data rate suits moderate-speed applications where slew-rate limiting reduces electromagnetic interference. Verify that the system environment requires the extended ±25V common-mode range provided by this specific series.

Part Context

This component belongs to the ISL3149xE family of fault-protected RS-485 transceivers designed for harsh industrial environments. The 'E' suffix indicates enhanced performance characteristics compared to earlier generations. The 'U' designation specifically identifies the compact 8-lead MSOP surface-mount package variant within the broader product line.

Replacement Considerations

For direct replacements, consult the ISL32490E Series datasheet as recommended by the manufacturer. Verify pin compatibility and electrical specifications before substituting other RS-485 transceivers to ensure system integrity and proper fault protection levels.