ISL32179EIRZ

Overview

The ISL32179EIRZ is a quad RS-422 driver manufactured by Renesas Electronics Corporation, designed for high-speed serial communication. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 32 Mb/s. The device integrates four drivers in a QFN-EP-24 surface-mount package, suitable for space-constrained applications. It features robust electrostatic discharge protection rated at 15 kV and maintains low power consumption with an operating supply current of 800 uA. The component functions reliably across an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Provides four independent differential drivers compliant with RS-422 standards for reliable data transmission.
• Incorporates 15 kV ESD protection on all pins to safeguard against electrostatic discharge events.
• Operates efficiently with low quiescent current, supporting both 3.3 V and 5 V logic systems.

Applications

• Industrial control systems requiring robust serial communication interfaces
• Data acquisition networks utilizing RS-422 protocols
• Embedded systems needing high-speed differential signaling

Procurement Notes

Verify the specific suffix 'IRZ' confirms the annealed lead-free variant and QFN-EP-24 packaging when sourcing. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as environmental declarations may vary by production batch. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when a quad driver configuration is required without integrated receivers. Compare against the ISL32179EFRZ if operation up to 125°C is necessary instead of the standard 85°C limit. Evaluate the trade-off between the 32 Mb/s speed and lower-speed alternatives if power consumption is a critical constraint.

Part Context

This part belongs to the ISL32179E series of RS-422 interface ICs. It is distinct from transceiver models like the ISL32173EFVZ, which include receiver channels. The product line focuses on providing robust, high-speed differential driving capabilities for industrial and commercial serial communication applications.

Replacement Considerations

The ISL32179EFRZ serves as a direct functional substitute with an extended maximum operating temperature of 125°C compared to the 85°C limit of the I-grade version. Verify pin compatibility and thermal performance differences before implementation.