ISL32478EIBZ-T

Overview

The ISL32478EIBZ-T is a half-duplex RS-485/RS-422 transceiver from the Renesas ISL3247xE series, designed for robust industrial communication. It operates at data rates up to 15 Mbps with a supply voltage of 5 V and supports an operating temperature range from -40°C to +85°C. The device features ±60V overvoltage protection on bus pins and ±16.5kV HBM ESD protection. It utilizes a 1/4 unit load configuration, allowing up to 128 nodes on the bus. Packaged in a 14-lead SOIC, it draws 2.3 mA static current and 10 µA shutdown current.

Feature Summary

• Extended fault protection with ±60V overvoltage tolerance on driver outputs and receiver inputs.
• Enhanced electrostatic discharge resilience providing ±16.5kV HBM protection on bus pins.
• High-speed data transmission capability supporting rates up to 15 Mbps.
• Low-power architecture featuring minimal static current consumption and deep shutdown mode.

Applications

• Industrial process control networks
• Building automation and environmental control systems
• Factory automation fieldbus networks

Procurement Notes

Verify the specific suffix 'IBZ-T' against official Renesas documentation to confirm package type and reel specifications. Ensure compatibility with system voltage requirements and thermal constraints before integration. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability.

Selection Notes

Select this component when high data throughput up to 15 Mbps is required alongside extreme noise immunity. The 14-pin SOIC package suits designs needing separate transmit and receive enable controls. Consider the extended common-mode range if significant ground potential differences exist between nodes.

Part Context

This device belongs to the ISL3247xE family of differential transceivers. It shares core fault protection and low-power characteristics with siblings like the ISL32470E and ISL32475E, differentiated primarily by its maximum data rate specification and pinout configuration within the same robust industrial interface category.

Replacement Considerations

Direct functional substitutes within the same series include the ISL32470EIBZ-T and ISL32475EIBZ-T. Verify that the alternative part's data rate meets the application's speed requirements, as lower-speed variants may not support 15 Mbps operation.