USB2250-NU-06

Controllers Overview

The USB2250I-NU-06 is a USB 2.0 compliant, Hi-Speed mass storage class peripheral controller designed for reading and writing to over 24 popular flash media formats. It supports CompactFlash (CF), SmartMedia (SM), xD-Picture Card, Memory Stick (MS), Secure Digital (SD), and MultiMediaCard (MMC). The device operates within an industrial temperature range of -40°C to +85°C. It features a single-chip solution with average sustained transfer rates exceeding 35 MB/s when supported by the media and host. The controller includes an integrated 8051 8-bit microprocessor running at 60 MHz with 64 KB ROM and 14 KB RAM.

Controllers Feature Summary

• Supports multiple simultaneous card insertions with flexible assignment of Logical Unit Numbers (LUNs) and card types.
• Hardware-controlled data flow architecture for self-mapped media and pipelined hardware support for non-self-mapped media.
• Includes four independent internal card power FETs with 200 mA capacity each and fold-back short circuit protection.
• Provides OEM selectable configuration options including vendor, product, and language IDs, manufacturer ID strings, and serial number strings.

Controllers Applications

• Flash Media Card Reader/Writer
• Printers
• Desktop and Mobile PCs
• Consumer A/V Equipment
• Vista ReadyBoost

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and temperature rating. Confirm that the component meets RoHS compliance requirements for your target market. Check for any recent Product Change Notices or errata sheets that may affect implementation details or pin configurations.

Controllers Selection Notes

Select this controller for applications requiring support for diverse legacy and modern flash media formats in a single socket design. Ensure the host system can handle high-speed USB 2.0 transfers to achieve optimal performance. Consider the need for external EEPROM if custom firmware or unique identification strings are required for the final product.

Controllers Part Context

This component belongs to the Microchip USB2250 family of ultra-fast USB 2.0 multi-slot flash media controllers. The 'i' suffix indicates the industrial temperature grade variant (-40°C to +85°C), distinguishing it from commercial grade versions. The NU-06 suffix typically denotes the specific package and tape/reel configuration as defined by Microchip Technology.

Controllers Replacement Considerations

Direct replacements within the same family include the USB2250 (commercial temp), USB2251, and USB2251i. Verify compatibility with existing PCB layouts and firmware, as pinouts and electrical characteristics may vary slightly between variants. Consult the official datasheet for detailed comparison of features and specifications.