ISL32457EIUZ

Overview

The ISL32457EIUZ is a half-duplex RS-422/RS-485 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 1 Mbps. The device features 60 V overvoltage protection on the bus pins and a common-mode rejection capability of 20 V. It integrates one driver and one receiver in an MSOP-8 surface-mount package. The component functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated 60 V overvoltage protection for robust bus pin safety
• High common-mode rejection ratio supporting noisy industrial environments
• Half-duplex architecture with single driver and receiver configuration

Applications

• Industrial automation control systems
• Building automation networks
• Process control instrumentation

Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Distribution channels indicate that Mouser does not currently stock this item in many regions. Engineers must verify current availability through authorized distributors or secondary markets, as lead times may be extended or supply limited due to discontinuation status.

Selection Notes

Designers should evaluate alternative components from the same family or newer generations due to the EOL status. Verify that replacement parts maintain compatibility with the required 60 V protection level and 20 V CMR specifications. Ensure the selected substitute supports the necessary 1 Mbps data rate and operates within the specified 3 V to 5.5 V power supply range.

Part Context

The ISL32457EIUZ belongs to the ISL32457E series of RS-422/RS-485 interface ICs. This series is designed for applications requiring reliable communication over twisted-pair lines with enhanced protection against electrical faults. The product was originally developed under the Intersil brand before the acquisition by Renesas Electronics.

Replacement Considerations

Public documentation confirms the ISL32457EIMZ as a verified equivalent part number within the same series.