ISL32274EFBZ

Overview

The ISL32274EFBZ is a single RS-422 driver manufactured by Renesas Electronics Corporation, housed in a 16-lead Quad Flat package (QFP) with SOIC-style pinout. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 10 Mb/s. The device draws a maximum operating supply current of 800 µA. It features robust electrostatic discharge protection rated at ±15 kV according to the Human Body Model. The component is designed for industrial environments, functioning reliably between -40°C and +125°C.

Feature Summary

• Single-channel differential driver optimized for RS-422 communication standards
• High-voltage ESD protection capability ensuring signal integrity in harsh environments
• Low-power operation suitable for battery-constrained or thermally limited applications

Applications

• Industrial automation control systems requiring reliable serial communication
• Building automation networks utilizing RS-422 bus topologies
• Test and measurement equipment interfaces

Procurement Notes

Verify component authenticity through authorized distributors as this part may be subject to obsolescence. Confirm lot traceability and moisture sensitivity level handling requirements prior to assembly. Ensure the specific suffix matches design specifications for packaging and temperature grade variations.

Selection Notes

Select this component when only a single transmitter channel is required for RS-422 links. Consider thermal management capabilities given the wide operating temperature range. Verify that the 10 Mb/s speed meets system timing requirements without necessitating higher-performance alternatives.

Part Context

This device belongs to the ISL3227xE series of interface ICs from Renesas/Intersil. It complements receiver-only variants like the ISL32273E to form complete transceiver solutions. The series emphasizes ruggedness and low power consumption for demanding industrial connectivity tasks.

Replacement Considerations

Check for direct pin-compatible upgrades within the ISL3227xE family. Verify if newer Renesas interface controllers offer enhanced fault protection while maintaining electrical compatibility.