ISL32172EFBZ-T

Overview

The ISL32172EFBZ-T is a quad RS-422 driver integrated circuit manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3.0 V to 5.5 V, supporting both 3.3 V and 5 V logic levels. The device delivers data rates up to 32 Mb/s with four independent drivers and zero receivers. It features an operating supply current of 800 uA and provides ±15 kV electrostatic discharge (ESD) protection on the bus lines. The component is designed for surface-mount installation in a 16-lead Narrow SOIC package. It functions reliably across an extended industrial temperature range from -40 °C to +125 °C.

Feature Summary

• Provides four differential drivers compliant with RS-422 standards for robust serial communication.
• Integrates high-level ESD protection rated at ±15 kV to safeguard bus connections against electrical stress.
• Supports high-speed data transmission capabilities up to 32 Mb/s for efficient signal integrity.
• Operates effectively across a wide industrial temperature spectrum ensuring reliability in harsh environments.

Applications

• Industrial automation systems requiring reliable multi-drop communication networks.
• Factory control equipment utilizing RS-422 interfaces for sensor and actuator connectivity.
• Test and measurement instruments needing high-speed differential signaling.
• Telecommunications infrastructure components demanding robust ESD resilience.

Procurement Notes

Verify part authenticity through authorized distributors or direct manufacturer channels due to potential counterfeit risks. Confirm RoHS compliance status and moisture sensitivity level handling requirements before assembly. Check for end-of-life notices as discontinuation may affect long-term supply stability. Ensure packaging specifications match production line capabilities for reel or cut tape formats.

Selection Notes

Select this component when designing circuits requiring four independent RS-422 transmitters without integrated receivers. Consider the 16-lead narrow SOIC package constraints for PCB layout space. Evaluate the 3.0 V to 5.5 V supply range compatibility with existing system power rails. Assess thermal management needs given the extended temperature operation capability up to 125 °C.

Part Context

This device belongs to the ISL32172E series of RS-422 interface ICs produced by Renesas under the former Intersil brand portfolio. It serves as a specialized driver solution within the broader family of differential communication controllers. The product targets applications prioritizing noise immunity and high-speed data transfer over standard single-ended interfaces.

Replacement Considerations

The ISL32172EFVZ-T offers identical electrical characteristics but utilizes a TSSOP-16 package instead of the SOIC-Narrow-16 form factor. Verify pinout compatibility and physical footprint differences before substituting. Both parts share the same core functionality and performance metrics within the RS-422 driver category.