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USB224X 数据表(PDF) 1 Page - Microchip Technology |
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USB224X 数据表(HTML) 1 Page - Microchip Technology |
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1 / 43 page  2010 - 2015 Microchip Technology Inc. DS00001979A-page 1 Highlights The Microchip USB224x is a USB 2.0 compliant, Hi- Speed bulk only1 mass storage class peripheral con- troller intended for reading and writing to popular flash media from the xD-Picture CardTM (xD)2, Memory Stick® (MS), Secure Digital (SD), and MultiMedia- CardTM (MMC) families. The USB224x is a fully integrated, single chip solution capable of ultra high performance operation. Average sustained transfer rates exceeding 35 MB/s are possi- ble if the media and host can support those rates. The USB2244/44i includes provisions to read/write secure media formats. General Features • Low pin count 36-pin QFN (6x6 mm) RoHS com- pliant package • USB2240/40I/41/41I - Targeted for applications in which single or "combo" media sockets are used • Hardware-controlled data flow architecture for all self-mapped media • Pipelined hardware support for access to non- self-mapped media • Order number with “I” denote the products that support the industrial temperature range of -40ºC to 85ºC • Support included for secure media format on a licensed, customized basis - USB2244/44I: SD Secure Hardware Features • Single chip flash media controller with - USB2240/40I/41/4I: multiplexed interface for use with “combo” card sockets - USB2244/44I: SD/MMC flash media reader/ writer • MMC Streaming Mode support • Extended configuration options - xD player mode operation - Socket switch polarities, etc. • Media Activity LED • On board 24 MHz crystal driver circuit • Optional external 24 MHz clock input3 • Internal card power FET - 200 mA - "Fold-back" short circuit protection • 8051 8-bit microprocessor - 60 MHz - single cycle execution - 64 KB ROM | 14 KB RAM • Supports a single external 3.3 V supply source; internal regulators provide 1.8 V internal core volt- age for additional bill of materials and power sav- ings • Optimized pinout improves signal routing which eases implementation for improved signal integ- rity Flash Media Specification Compliance • Secure Digital 2.0 - HS-SD, SDHC - TransFlashTM and reduced form factor media • MultiMediaCard 4.2 - 1/4/8-bit MMC • Memory Stick Formats - MS 1.43, Pro 1.02, Duo 1.10 - Pro-HG Duo 1.01 –MS, MS Duo, HS-MS, MS Pro-HG, MS Pro • xD-Picture Card 1.2 Software Features • Customizable vendor specific data • Optimized for low latency interrupt handling • Reduced memory footprint Applications • Flash media card reader/writers • Desktop and mobile PCs • Printers • Consumer A/V and media players/viewers • Compatible with –Microsoft® VistaTM and Vista ReadyBoostTM –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. USB224X Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers |
类似零件编号 - USB224X |
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类似说明 - USB224X |
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