ISL31478EIBZ-T

Overview

The ISL31478EIBZ-T is a low-power RS-422/RS-485 transceiver manufactured by Renesas Electronics. It integrates one driver and one receiver in an SOIC-8 surface-mount package. The device supports data rates up to 10 Mb/s and operates on a single 5 V supply voltage. It functions within an ambient temperature range of -40°C to +85°C. Key electrical characteristics include a high-voltage output for robust signal transmission and integrated ESD protection compliant with IEC 61000-4-2 standards. The component utilizes differential output types suitable for industrial communication networks.

Feature Summary

• Supports RS-422 and RS-485 communication protocols with full-duplex or half-duplex configurations.
• Features integrated electrostatic discharge (ESD) protection meeting IEC 61000-4-2 requirements.
• Designed for low power consumption applications utilizing a single 5 V supply.
• Provides high-voltage differential outputs for reliable data transmission over long distances.

Applications

• Industrial automation control systems
• Building automation and security networks
• Factory floor communication interfaces

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official Renesas documentation prior to integration. Ensure the SOIC-8 footprint matches the target PCB layout constraints. Check for moisture sensitivity level ratings if storage conditions require baking before reflow soldering.

Selection Notes

Select this component for designs requiring standard 5 V logic compatibility with RS-485 buses. Consider the 10 Mb/s maximum data rate against network latency requirements. Evaluate the SOIC-8 package size relative to available board space compared to larger DIP alternatives. Verify that the operating temperature range of -40°C to +85°C meets environmental specifications.

Part Context

This part belongs to the ISL31478E series of interface ICs from Renesas, formerly Intersil. The series focuses on providing robust communication solutions for noisy industrial environments. It serves as a bridge between microcontroller UARTs and balanced transmission lines, ensuring signal integrity across various protocol implementations.

Replacement Considerations

Direct pin-compatible substitutes may include other RS-485 transceivers from the same manufacturer family, such as the ISL32485EIBZ-T, provided voltage levels and data rates align with system requirements. Always verify functional equivalence regarding ESD protection thresholds and supply voltage ranges before substitution.