ISL31492EIUZ-T7A

Overview

The ISL31492EIUZ-T7A 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 250kbps. The device features ±60V bus pin fault protection and an extended common mode range of ±25V. It includes hot plug circuitry, full fail-safe receiver design, and low power shutdown capability. The component is housed in an 8-lead MSOP package and is supplied in tape and reel format.

Feature Summary

• Bus pins protected against faults up to ±60V
• Extended common mode voltage tolerance of ±25V
• Full fail-safe receiver operation for open, shorted, or idle bus conditions
• Hot plug functionality maintains three-state outputs during power transitions

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 T7A corresponds to the tape and reel packaging configuration as defined in the manufacturer's documentation. Confirm that the 8-lead MSOP package variant meets the required thermal and mechanical constraints for the target assembly process. Ensure compliance with RoHS standards and check for any relevant product change notices affecting the manufacturing source.

Selection Notes

Select this component when a half-duplex interface with robust fault protection is required. The ISL31492E provides superior noise immunity through high differential output voltage. Verify that the 250kbps data rate aligns with system timing requirements. Consider the 8-lead MSOP package dimensions if board space is limited compared to standard SOIC options.

Part Context

This part belongs to the ISL3149xE series of fault-protected, 5V powered differential transceivers designed to exceed RS-485 and RS-422 standards. The family includes both half-duplex and full-duplex variants with varying data rates. The ISL31492E specifically offers half-duplex communication with integrated driver enable and receiver output enable controls.

Replacement Considerations

Consult the ISL32490E Series datasheet for exact replacement options. Other compatible parts within the same family include the ISL31490E, ISL31491E, ISL31493E, ISL31495E, ISL31496E, and ISL31498E.