ISL31498EIBZ

Overview

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

Feature Summary

• Fault protected RS-485 bus pins withstand up to ±60V.
• Extended common mode voltage tolerance of ±25V.
• Full fail-safe receiver design ensures logic high output when inputs are floating or shorted.
• Hot plug circuitry keeps outputs three-state during power-up and power-down.

Applications

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

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly. Ensure the selected variant matches the required duplex configuration and data rate for the target application.

Selection Notes

Select this component for applications requiring robust fault protection and wide common mode voltage tolerance. Verify that the 15Mbps data rate aligns with system timing requirements. Consider the 8-pin SOIC package dimensions for PCB layout constraints. Ensure thermal management meets the specified junction temperature limits under maximum load conditions.

Part Context

This part belongs to the ISL3149xE series of differential transceivers designed to exceed standard RS-485 and RS-422 requirements. The series offers various configurations including half-duplex and full-duplex options with different data rates. The ISL31498E specifically provides a half-duplex interface optimized for high-speed communication in noisy industrial environments.

Replacement Considerations

Consult the ISL32490E Series datasheet for exact replacement information as indicated in the product documentation. Verify pin compatibility and electrical specifications before substituting with other members of the ISL3149xE family.