USB224X Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Media Activity LED Highlights On board 24 MHz crystal driver circuit 3 The Microchip USB224x is a USB 2.0 compliant, Hi- Optional external 24 MHz clock input 1 Speed bulk only mass storage class peripheral con- Internal card power FET troller intended for reading and writing to popular flash - 200 mA 2 TM media from the xD-Picture Card (xD) , Memory -Fold-bac short circuit protection Stick (MS), Secure Digital (SD), and MultiMedia- TM 8051 8-bit microprocessor Card (MMC) families. - 60 MHz - single cycle execution The USB224x is a fully integrated, single chip solution - 64 KB ROM 14 KB RAM capable of ultra high performance operation. Average Supports a single external 3.3 V supply source sustained transfer rates exceeding 35 MB/s are possi- internal regulators provide 1.8 V internal core volt- ble if the media and host can support those rates. The age for additional bill of materials and power sav- USB2244/44i includes provisions to read/write secure ings media formats. Optimized pinout improves signal routing which eases implementation for improved signal integ- General Features rity Low pin count 36-pin QFN (6x6 mm) RoHS com- Flash Media Specification Compliance pliant package USB2240/40I/41/41I Secure Digital 2.0 - Targeted for applications in which single or - HS-SD, SDHC comb media sockets are used TM - TransFlash and reduced form factor media Hardware-controlled data flow architecture for all MultiMediaCard 4.2 self-mapped media - 1/4/8-bit MMC Pipelined hardware support for access to non- Memory Stick Formats self-mapped media - MS 1.43, Pro 1.02, Duo 1.10 Order number with I denote the products that - Pro-HG Duo 1.01 support the industrial temperature range of -40C MS, MS Duo, HS-MS, MS Pro-HG, MS Pro to 85C xD-Picture Card 1.2 Support included for secure media format on a licensed, customized basis Software Features - USB2244/44I: SD Secure Customizable vendor specific data Hardware Features Optimized for low latency interrupt handling Reduced memory footprint Single chip flash media controller with - USB2240/40I/41/4I: multiplexed interface for Applications use with combo card sockets Flash media card reader/writers - USB2244/44I: SD/MMC flash media reader/ Desktop and mobile PCs writer Printers MMC Streaming Mode support Consumer A/V and media players/viewers Extended configuration options Compatible with - xD player mode operation TM TM Microsoft Vista and Vista ReadyBoost - Socket switch polarities, etc. Windows XP, ME, 2K SP4 Apple Mac OSx Linux Mass Storage Class Drivers 1.Bulk only is not applicable to USB2240/40i/41/41i. 2.xD-Picture Card is not applicable to USB2241/41i. 3.Only applicable to USB2240/40i/41/41i. 2010 - 2015 Microchip Technology Inc. DS00001979A-page 1USB224X 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: