ISL32453EIBZ-T7A

Overview

The ISL32453EIBZ-T7A is a full-duplex RS-422 and RS-485 transceiver manufactured by Renesas Electronics Corporation. It integrates one driver and one receiver within a 14-SOIC surface-mount package. The device supports data transmission rates up to 1 Mbps and operates on a supply voltage range of 3 V to 5.5 V. It functions reliably across an extended industrial temperature range from -40°C to +85°C. The component includes ESD protection features and utilizes a standard SOIC footprint for board integration.

Feature Summary

• Supports full-duplex communication protocols including RS-422 and RS-485 standards
• Integrates high-performance differential drivers and receivers in a compact package
• Provides electrostatic discharge (ESD) protection for signal lines

Applications

• Industrial automation control systems requiring robust serial communication
• Building automation networks utilizing RS-485 bus topologies
• Data acquisition modules operating in electrically noisy environments

Procurement Notes

Verify the specific suffix T7A against current manufacturer documentation, as official records indicate the base part ISL32453EIBZ has reached end-of-life status. Confirm availability through authorized distributors or secondary market sources, as direct manufacturing supply may be discontinued. Ensure compliance with RoHS3 specifications during sourcing.

Selection Notes

Select this component when a full-duplex interface is required for RS-422 or RS-485 applications. The 14-SOIC package offers more pins than half-duplex alternatives, accommodating separate transmit and receive lines. Verify that the 3 V to 5.5 V supply range matches the system power architecture and that the 1 Mbps speed meets network timing requirements.

Part Context

This part belongs to the ISL3245xE family of overvoltage-protected transceivers from Renesas. While the base ISL32453EIBZ is documented as obsolete, the T7A variant denotes tape-and-reel packaging. This family shares design characteristics with other members like the ISL32455E and ISL32457E, differing primarily in duplex configuration and pin count.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult the manufacturer's obsolescence notices for potential recommended replacements or evaluate equivalent full-duplex transceivers from other vendors.