ISL31470EIBZ

Overview

The ISL31470EIBZ is a half-duplex RS-485 transceiver manufactured by Renesas Electronics Corporation. It operates on a single 5 V supply and supports data rates up to 5 Mb/s. The device features overvoltage protection on both the transmit (TXD) and receive (RXD) pins, withstanding voltages from -14 V to +20 V relative to ground. It provides a common-mode rejection of ±15 V and is housed in a 14-lead SOIC package. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated overvoltage protection for TXD and RXD pins ensures robust operation in electrically noisy environments.
• Supports high-speed data transmission at rates up to 5 Mb/s for efficient communication.
• Provides differential output capability suitable for standard RS-485 bus architectures.

Applications

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

Procurement Notes

Verify the specific suffix 'BZ' against the manufacturer's current datasheet to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure that the ordering quantity aligns with the factory reel size specifications provided in the official documentation to avoid handling discrepancies.

Selection Notes

Select this component when a 5 V powered RS-485 interface with integrated pin protection is required. It is appropriate for designs needing reliable performance in industrial settings where voltage spikes on data lines are a concern. Verify that the 14-lead SOIC footprint fits the available PCB space constraints.

Part Context

This part belongs to the ISL31470E series of RS-485/RS-422 interface ICs. It is designed as a robust solution for serial communication buses, offering enhanced protection features compared to standard transceivers. The product line targets applications requiring high reliability and noise immunity in harsh electrical environments.

Replacement Considerations

Consult the official Renesas cross-reference guide for verified substitutes. Ensure any alternative maintains the same 5 V supply requirement, 14-lead SOIC package, and equivalent overvoltage protection ratings to guarantee functional compatibility.