USB2250/50i/51/51i Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Extended configuration options General Description - xD player mode operation The Microchip USB2250/50i/51/51i is a USB 2.0 com- - Socket switch polarities, etc. pliant, Hi-Speed mass storage class peripheral control- Media Activity LED ler intended for reading and writing to more than 24 On board 24 MHz crystal driver circuit popular flash media formats from the CompactFlash Optional external 24 MHz clock input 1 TM TM (CF), SmartMedia (SM), xD-Picture Card (xD) , - 4 Independent internal card power FETs Memory Stick (MS), Secure Digital (SD), and MultiMe- - 200 mA each TM diaCard (MMC) families. -Fold-bac short circuit protection 8051 8-bit microprocessor The USB2250/50i/51/51i is a fully integrated, single - 60 MHz - single cycle execution chip solution capable of ultra high performance opera- tion. Average sustained transfer rates exceeding 35 - 64 KB ROM 14 KB RAM Internal regulator for 1.8 V core operation MB/s are possible if the media and host can support Optimized pinout improves signal routing which those rates. eases implementation for improved signal integ- rity Highlights 128-pin VTQFP (14x14 mm) RoHS compliant OEM Selectable package Vendor, product, and language IDs Targeted for applications in which single or Manufacturer ID and product strings (28 charac-comb media sockets are used Supports multiple simultaneous card insertions ter) Serial number string (12h digit max) Flexible assignment of number of LUNs and how Customizable vendor specific data by optional card types are associated with the LUNs Hardware-controlled data flow architecture for all use of external serial EEPROM Bus- or self-powered selection self-mapped media LED blink interval or duration Pipelined hardware support for access to non- self-mapped media Internal power FET configuration Order number with i denotes the version that supports the industrial temperature range of -40C Software Features to 85C Optimized for low latency interrupt handling Reduced memory footprint Hardware Features Device Firmware Upgrade (DFU) support of exter- Single chip flash media controller with non-multi- nal EEPROM or External Flash - Assembly line support plexed interface for independent card sockets - End user field upgrade support Flash Media Specification Revision Compliance - CompactFlash 4.1 - DFU Package consists of driver, firmware, sample DFU application and source code, - Secure Digital 2.0 DFU driver API - MultiMediaCard 4.2 MMC Streaming Mode support Optional custom firmware with up to 128 KB external ROM - Memory Stick 1.43 - Memory Stick Pro Format 1.02 - Memory Stick Duo Format 1.10 Applications - Memory Stick Pro-HG Duo Format 1.01 Flash Media Card Reader/Writer - xD-Picture Card 1.2 Printers - SmartMedia 1.3 Desktop and Mobile PCs Consumer A/V Media Players/Viewers TM Vista ReadyBoost 1.) xD-Picture Card not applicable to USB2251. 2009 - 2015 Microchip Technology Inc. DS00002005A-page 1USB2250/50i/51/51i TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: