ISL32179EFRZ

Overview

The ISL32179EFRZ 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 features an operating supply current of 800 uA and provides ESD protection rated at 15 kV. It functions reliably across an extended temperature range from -40°C to +125°C. The component is housed in a QFN-EP-24 surface-mount package.

Feature Summary

• Integrates four independent drivers compliant with RS-422 standards for robust differential signaling.
• Provides enhanced electrostatic discharge protection rated at 15 kV for improved system reliability.
• Supports high-speed data transmission with a maximum rate of 32 Mb/s.
• Operates over an extended industrial temperature range up to +125°C.

Applications

• Industrial control systems requiring reliable multi-drop communication
• High-speed serial data transmission networks
• Equipment interfaces demanding high ESD immunity

Procurement Notes

Verify the specific ordering suffix against official Renesas documentation to confirm package type and tape/reel specifications. Confirm moisture sensitivity level (MSL) ratings prior to PCB assembly to ensure proper handling procedures are followed. Check for any recent product change notices that may affect pinout or electrical characteristics.

Selection Notes

Select this component when a quad driver configuration is required without integrated receivers. Ensure the application voltage falls within the 3 V to 5.5 V range. Verify that the 32 Mb/s data rate meets the system requirements and that the QFN-EP-24 package fits the board layout constraints.

Part Context

This part belongs to the ISL32179E series of RS-422 interface ICs. It is specifically designed as a driver-only solution, distinguishing it from transceiver variants in the same family. The 'EF' suffix typically denotes the extended temperature range and specific packaging options available from Renesas.

Replacement Considerations

Check for direct substitutes such as other quad RS-422 drivers from Renesas or compatible vendors. Verify pin compatibility and electrical parameters before substitution. Consider if receiver integration is needed, which might require a different part number from the same family.