ISL32174EFBZ-T

Overview

The ISL32174EFBZ-T is a quad RS-422 driver integrated circuit manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device delivers data transmission rates up to 32 Mb/s with four independent drivers and zero receivers. It features robust electrostatic discharge protection rated at ±15 kV according to the Human Body Model. The component functions reliably across an extended industrial temperature range from -40 °C to +125 °C while consuming a typical operating supply current of 800 µA. It is housed in a 16-lead Narrow SOIC package.

Feature Summary

• Provides four independent differential drivers for RS-422 communication standards.
• Features high electrostatic discharge immunity rated at ±15 kV HBM.
• Supports data transmission speeds up to 32 Mb/s.
• Operates over an extended industrial temperature range up to +125 °C.

Applications

• Industrial automation control networks
• Factory floor sensor interfaces
• Data acquisition systems

Procurement Notes

Verify availability status as this specific part number may be discontinued or subject to limited production runs. Confirm that the 16-lead Narrow SOIC package aligns with existing PCB footprints. Ensure design compatibility with 3 V to 5.5 V power domains. Check for moisture sensitivity level requirements during storage and handling. Validate that the ESD protection specifications meet system safety standards.

Selection Notes

Select this component when designing RS-422 transmitter stages requiring high noise immunity and wide temperature operation. It serves as a direct replacement for legacy Intersil quad drivers in existing schematics. Consider the 800 µA quiescent current for low-power applications. Verify that the narrow SOIC footprint fits the mechanical constraints of the enclosure. Ensure signal integrity requirements are met by the 32 Mb/s bandwidth capability.

Part Context

This device belongs to the ISL3217xE series of RS-422 interface ICs. It complements receiver-only variants like the ISL32173EIBZ-T within the same product family. The series is designed for harsh industrial environments requiring reliable differential signaling. Renesas continues to support these components for maintenance designs despite newer generations being available.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided documentation. Designers should consult official Renesas cross-reference tools for qualified alternatives. Verify pinout compatibility before substituting with similar quad RS-422 drivers from other manufacturers.