Microchip's USB225x family of Hi-Speed USB 2.0 flash media card controllers provides an ultra-fast interface between a USB host controller and today's most popular flash media cards. Offering comprehensive USB 2.0 compliance and interoperability, the USB225x product family is engineered to provide flexibility for system designers to choose independent or simultaneous access to a wide selection of flash media readers. It provides secure memory format options via external or internal memory, and is capable of high-performance throughput with new formats such as CF-Ultra Direct Memory Access (UDMA) and Memory Stick PRO-HG.

The USB225x consists of a USB 2.0 device transceiver, fast 8051 microprocessor and Compact Flash? (CF), Memory Stick? (MS), Smart Media? (SM) and Secure Digital (SD) controllers in a single chip. Microchip's new ultra-fast card readers are well-suited for performance-intensive Microsoft? Windows Vista? applications such as ReadyBoost?. PC system performance can be improved by up to 10% when employing ReadyBoost with an Microchip flash media reader.*

*Results are based on actual measurements on evaluation platforms developed by Microchip, and are meant only as a general guideline, not as a guarantee. Actual customer results may vary based on a number of factors, including board layout and measurement technique.

Microchip makes the following part-numbered device available for purchase only by customers who are xD-Picture Card licensees: USB2250. By purchasing or ordering any of such devices, Buyer represents, warrants, and agrees that Buyer is a duly licensed Licensee under an xD-Picture Card? License Agreement with Fuji Photo Film Co., Ltd., Olympus Optical Co., Ltd., and Toshiba Corporation; and that Buyer will maintain in effect such xD-Picture Card license and will give Microchip reasonable advance notice of any termination or expiration of such xD-Picture Card license, but in no event less than five days advance notice. Microchip may discontinue making such devices available for purchase by Buyer and/or discontinue further deliveries of such devices if such xD-Picture Card license shall expire, terminate, or cease to be in force, or if Buyer is or becomes in default of such xD-Picture Card license.

Highlights

  Optimized for Hi-Speed performance and versatility

  Supports Smart Media?/xD-Picture Card?, Memory Stick?/Memory Stick PRO?/Memory Stick PRO-HG?, MultiMediaCard?/Secure Digital and Compact Flash?/Compact Flash-UDMA interfaces

  Capable of high-performance throughput > 35MB/s with new Hi-Speed formats – CF-UDMA, MS PRO-HG

  Well-suited for PC applications utilizing Microsoft? ReadyBoost? to improve system performance

  External or internal ROM option

  Secure memory format options supported via external or internal memory

  Supports individual or any combination of sockets

  Industrial-temp option - designed to meet -40° to 85°C requirements

  Optional, small footprint, 36-pin QFN package for single or fully-multiplexed card interface designs or space-constrained applications

Applications

  Desktop/Notebook PCs

  Multi-function Printers

  Digital TVs

  Monitors

  Consumer Audio/Video Devices

  Stand-alone Flash Media Reader/Writers

  Digital Picture Frames

  Media Players

  Set-top Boxes

  Gaming Consoles

  Automobile/Home Audio Systems

  Industrial Applications