USB2251I-NU-06

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.

• 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