USB2228-NU-03

Overview

The USB2228-NU-03 is a fifth-generation high-speed USB flash media and IrDA controller manufactured by SMSC. It integrates card power FETs for direct drive capability. The device supports USB 2.0 High-Speed data transfer rates up to 480 Mbps. It provides integrated power management features for connected storage media, eliminating the need for external switching components in many designs.

Feature Summary

• Integrates high-speed USB host controller logic with IrDA transceiver capabilities
• Includes built-in power field-effect transistors for direct card power regulation
• Supports hot-plug operations and automatic attach detection for connected devices

Applications

• Laptop computer expansion slots
• Desktop motherboard peripheral interfaces
• Portable media reader devices

Procurement Notes

Verify the manufacturer origin as SMSC or its successor Microchip Technology. Confirm the package type matches the NU suffix specification. Ensure the component revision aligns with current supply chain availability from authorized distributors.

Selection Notes

Select this component when an integrated solution combining USB 2.0 High-Speed connectivity and IrDA support is required. The integrated power FETs simplify the bill of materials by reducing external component count. Verify system voltage requirements match the controller's operating specifications.

Part Context

This part belongs to the fifth generation of USB flash media controllers from SMSC. These controllers were designed to replace legacy solutions by integrating multiple functions into a single chip. The NU variant indicates a specific package configuration suitable for surface-mount assembly.