ISL31470EIBZ-T7A

Overview

The ISL31470EIBZ-T7A is a single full-duplex RS-422/RS-485 transceiver manufactured by Renesas Electronics. It operates on a single 5 V supply and supports data rates up to 250 kb/s. The device features overvoltage protection (OVP) on both the driver outputs and receiver inputs, rated at +/-15 V common-mode rejection. It is housed in a 14-lead SOIC package and functions within an industrial temperature range of -40°C to +85°C. The part includes a shutdown feature for low-power applications and draws a typical operating supply current of 2.3 mA.

Feature Summary

• Integrated overvoltage protection on driver outputs and receiver inputs for enhanced bus reliability
• Single full-duplex configuration supporting standard RS-422 and RS-485 communication protocols
• Shutdown mode capability designed to minimize power consumption during idle periods

Applications

• Industrial automation control systems requiring robust serial communication
• Building automation networks utilizing RS-485 multi-drop configurations
• Point-of-sale terminals and payment systems needing reliable data transmission

Procurement Notes

Verify the specific suffix T7A corresponds to the reel packaging format when ordering. Confirm that the 14-lead SOIC footprint matches the target PCB design constraints. Ensure the voltage levels align with the system's 5 V logic requirements before integration.

Selection Notes

Select this component when a single full-duplex channel is sufficient for the application. It is suitable for environments where moderate data speeds are adequate but high noise immunity is required. Consider the thermal characteristics of the SOIC package if multiple units are placed closely together on the board.

Part Context

This part belongs to the ISL31470E series of interface ICs from Renesas. It serves as a specialized solution for differential signaling applications. The product line focuses on providing protected interfaces for harsh electrical environments common in industrial settings.

Replacement Considerations

Check for direct pin-compatible alternatives within the Renesas portfolio that may offer updated packaging or extended temperature ranges. Verify functional equivalence regarding OVP ratings and data rate specifications before substituting.