ISL32459EIBZ-T

Overview

The ISL32459EIBZ-T is a half-duplex RS-422/RS-485 transceiver manufactured by Renesas Electronics Corporation. It integrates one driver and one receiver within an 8-pin SOIC package, supporting data rates up to 1 Mbps. The device operates on a supply voltage range of 3 V to 5.5 V and functions reliably across an industrial temperature range from -40°C to +85°C. Key electrical specifications include a 60V overvoltage protection (OVP) rating on the bus pins and a common-mode rejection capability of 20V. The component utilizes differential output types for signal transmission.

Feature Summary

• Integrated 60V overvoltage protection on bus terminals ensures robust operation in electrically noisy environments.
• High common-mode rejection ratio supports reliable communication under significant ground potential differences.
• Half-duplex architecture with single driver and receiver configuration optimizes pin count for compact designs.

Applications

• Industrial automation control systems requiring reliable serial communication.
• Building automation networks utilizing RS-485 bus topologies.
• Metering equipment interfaces needing high noise immunity.

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure moisture sensitivity level handling procedures are followed during assembly to maintain device reliability.

Selection Notes

Select this component for applications requiring half-duplex communication with moderate data rates. The 8-pin SOIC package suits space-constrained PCB layouts. Verify that the 1 Mbps speed meets system timing requirements and that the 3V to 5.5V supply range aligns with available power rails.

Part Context

This part belongs to the ISL3245xE family of OVP transceivers from Renesas. The family includes variants like the ISL32455 and ISL32457, which share similar protection features but may differ in duplex mode or package type. This specific model represents the half-duplex variant in an 8-pin format.

Replacement Considerations

Check for direct substitutes within the ISL3245xE series such as ISL32455EIBZ-T for functional equivalence. Verify pin compatibility and electrical parameters against alternative manufacturers' RS-485 transceivers before implementation.