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USB2241I-AEZG-06 Datasheet, PDF (1/8 Pages) Microchip Technology – Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers | |||
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USB224x
Ultra Fast USB 2.0 Multi-Format, SD/MMC,
and MS Flash Media Controllers
PRODUCT FEATURES
Data Brief
General Description
The SMSC USB224x is a USB 2.0 compliant, Hi-Speed
bulk only1 mass storage class peripheral controller intended
for reading and writing to popular flash media from the xD-
Picture CardTM (xD)2, Memory Stick® (MS), Secure Digital
(SD), and MultiMediaCardTM (MMC) families.
The SMSC USB224x is a fully integrated, single chip
solution capable of ultra high performance operation.
Average sustained transfer rates exceeding 35 MB/s are
possible if the media and host can support those rates. The
USB2244/44i includes provisions to read/write secure
media formats.
General Features
ï® Low pin count 36-pin QFN (6x6 mm) lead-free RoHS
compliant package
ï® USB2240/40i/41/41i
â Targeted for applications in which single or "combo"
media sockets are used
ï® Hardware-controlled data flow architecture for all self-
mapped media
ï® Pipelined hardware support for access to non-self-
mapped media
ï® Order number with âiâ denote the products that support
the industrial temperature range of -40ºC to 85ºC
ï® Support included for secure media format on a licensed,
customized basis
â USB2244/44i: SD Secure
â USB2242/42i: Sony MagicGateTM
Hardware Features
ï® Single chip flash media controller with
â USB2240/40i/41/4i: multiplexed interface for use with
âcomboâ card sockets
â USB2242/42i: MS flash media reader/writer
â USB2244/44i: SD/MMC flash media reader/writer
ï® SDIO and MMC Streaming Mode support
ï® Extended configuration options
â xD player mode operation
â Socket switch polarities, etc.
ï® Media Activity LED
ï® GPIO configuration and polarity
â Up to 8 GPIOs for special function use
â One GPIO with up to 200 mA drive
ï® On board 24 MHz crystal driver circuit
ï® Optional external 24 MHz clock input3
ï® Internal card power FET
â 200 mA
â "Fold-back" short circuit protection
ï® 8051 8-bit microprocessor
â 60 MHz - single cycle execution
â 64 KB ROM | 14 KB RAM
ï® Supports a single external 3.3 V supply source; internal
regulators provide 1.8 V internal core voltage for
additional bill of materials and power savings
ï® Optimized pinout improves signal routing which eases
implementation for improved signal integrity
Flash Media Specification Compliance
ï® Secure Digital 2.0
â HS-SD, SDHC
â TransFlashTM and reduced form factor media
ï® MultiMediaCard 4.2
â 1/4/8-bit MMC
ï® Memory Stick Formats
â MS 1.43, Pro 1.02, Duo 1.10
â Pro-HG Duo 1.01
â MS, MS Duo, HS-MS, MS Pro-HG, MS Pro
ï® xD-Picture Card 1.2
Software Features
ï® Customizable vendor specific data
ï® Optimized for low latency interrupt handling
ï® Reduced memory footprint
Applications
ï® Flash media card reader/writers
ï® Desktop and mobile PCs
ï® Printers
ï® Consumer A/V and media players/viewers
ï® Compatible with
â Microsoft® VistaTM and Vista ReadyBoostTM
â Windows® XP, ME, 2K SP4
â Apple Mac OSx®
â 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.
SMSC USB224x
Revision 2.1 (02-07-13)
PRODUCT PREVIEW
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