USB2241I-AEZG-06 Datasheet, PDF (1/8 Pages) Microchip Technology – Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers

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 Card^TM (xD)², Memory Stick^® (MS), Secure Digital
(SD), and MultiMediaCard^TM (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
 Low pin count 36-pin QFN (6x6 mm) lead-free RoHS
compliant 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
— USB2242/42i: Sony MagicGate^TM
Hardware Features
 Single chip flash media controller with
— USB2240/40i/41/4i: multiplexed interface for use with
“combo” card sockets
— USB2242/42i: MS flash media reader/writer
— USB2244/44i: SD/MMC flash media reader/writer
 SDIO and MMC Streaming Mode support
 Extended configuration options
— xD player mode operation
— Socket switch polarities, etc.
 Media Activity LED
 GPIO configuration and polarity
— Up to 8 GPIOs for special function use
— One GPIO with up to 200 mA drive
 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 voltage for
additional bill of materials and power savings
 Optimized pinout improves signal routing which eases
implementation for improved signal integrity
Flash Media Specification Compliance
 Secure Digital 2.0
— HS-SD, SDHC
— TransFlash^TM 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^® Vista^TM and Vista ReadyBoost^TM
– 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.
SMSC USB224x
Revision 2.1 (02-07-13)
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