ISL32455EIUZ

Overview

The ISL32455EIUZ 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 a 60 V overvoltage protection (OVP) rating on the I/O pins and a common-mode rejection capability of 20 V. Designed for surface-mount applications, it is housed in an 8-pin MSOP package. The component functions reliably across an extended temperature range from -40°C to +85°C, ensuring stable performance in industrial environments.

Feature Summary

• Integrated 60 V overvoltage protection on transceiver I/O lines
• High common-mode rejection ratio supporting noisy signal environments
• Compliant with RS-422 and RS-485 communication standards

Applications

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

Procurement Notes

Verify the specific manufacturer part number against official Renesas documentation to ensure authenticity. Confirm that the ordering suffix matches the required package type and temperature grade. Check RoHS compliance status directly from the datasheet or manufacturer declaration. Ensure the supplier provides traceable origin records for quality assurance purposes.

Selection Notes

Select this component when designing circuits requiring robust I/O protection against transient voltages. The 60 V OVP feature eliminates the need for external protection devices in many scenarios. Verify that the 1 Mbps data rate meets system timing requirements. Ensure the operating voltage aligns with the 3 V to 5.5 V supply range available in the target design.

Part Context

This device belongs to the ISL32455E series of interface ICs. It serves as a reliable solution for differential communication links where noise immunity and pin protection are critical. The MSOP packaging allows for compact board layouts in space-constrained industrial equipment.

Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Generic RS-485 transceivers may lack the specific 60 V overvoltage protection rating. Verify pin compatibility and electrical specifications before considering any cross-reference parts.