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USB2244I

更新时间： 2024-11-14 07:05:35
品牌 Logo 应用领域
SMSC 闪存控制器
页数 文件大小 规格书
22页 540K
描述
Ultra Fast USB 2.0 SD/MMC Flash Media Controller

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中文翻译

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USB2244I 数据手册

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USB2244/USB2244I  
Ultra Fast USB 2.0 SD/MMC  
Flash Media Controller  
Datasheet  
PRODUCT FEATURES  
General Description  
Mask Programmable Features  
The SMSC USB2244/USB2244i is a USB 2.0 compliant,  
„
„
„
„
VID/PID/Language ID  
high speed Bulk Only Mass Storage Class Peripheral  
Controller intended for reading and writing to SD/MMC Flash  
Media Cards.  
28-character Manufacturer ID and Product string  
12-hex digit (max) Serial Number string  
Customizable Vendor specific data LED blink interval or  
duration  
The SMSC USB2244/USB2244i is a fully integrated, single  
chip solution capable of ultra high performance operation.  
Average sustained transfer rates exceeding 35MB/s are  
possible if the media and host can support those rates.  
Provisions to read/write secure media formats is also  
provided.  
Software Features  
„
„
„
Optimized for low latency interrupt handling  
Reduced memory footprint  
Please see the USB2244/USB2244i Software Release  
Notes for additional Software Features.  
Applications  
„
„
„
„
„
„
Flash Media Card Reader/Writer  
Printers  
General Features  
„
36-pin QFN (6x6mm) lead-free RoHS compliant package  
Hardware-controlled data flow architecture for all self-  
mapped media  
Desktop and Mobile PCs  
Consumer A/V  
„
Media Players/Viewers  
TM  
Vista ReadyBoost  
„
„
„
Pipelined hardware support for access to non-self-  
mapped media  
Product name with “i” denotes the version that supports  
the industrial temperature range of -40ºC to 85ºC  
Support included for secure media format on a licensed,  
customized basis  
„
Compatible with Microsoft Vista, Windows XP, Windows  
ME, Windows 2K SP4, Apple OSx, and Linux Mass  
Storage Class Drivers  
—
SD Secure  
Hardware Features  
„
Single Chip Flash Media Reader/Writer  
—
Secure Digital 2.0  
–
HS-SD, HC-SD, TransFlash™ and reduced form factor  
media  
—
MultiMediaCard Specification 4.2  
–
1/4/8 bit MMC  
„
„
SDIO and MMC Streaming Mode support  
Extended configuration options  
—
Socket switch polarities, etc.  
„
„
Media Activity LED  
GPIO configuration and polarity  
—
Up to 8 GPIOs for special function use: LED indicators,  
power control to memory devices, etc. The number of  
actual GPIO’s depends on the implementation  
configuration used.  
—
One GPIO with up to 200 mA drive  
„
„
On Board 24MHz Crystal Driver Circuit  
Internal Card Power FET  
—
—
200mA  
"Fold-back" short circuit current protected  
„
8051 8-bit microprocessor  
—
—
60MHz - single cycle execution  
64KB ROM; 14KB RAM  
„
„
Internal Regulator for 1.8V core operation  
Optimized pinout improves signal routing, easing  
implementation and allowing for improved signal integrity  
SMSC USB2244/USB2244i  
DATASHEET  
Revision 1.0 (05-27-08)  
1234567...22

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与USB2244I相关器件

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USB2244I-AEZG MICROCHIP

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 		Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
USB2244I-AEZG-06 MICROCHIP

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 		FLASH MEMORY DRIVE CONTROLLER, QCC36, 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, VQFN-36
USB2244I-AEZG-06 SMSC

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 		Flash Memory Drive, CMOS, 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36
USB2244I-AEZG-06-TR MICROCHIP

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 		FLASH MEMORY DRIVE CONTROLLER, QCC36, 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, VQFN-36
USB2244I-AEZG-TR MICROCHIP

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 		Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
USB2244I-AEZG-XX MICROCHIP

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 		FLASH MEMORY DRIVE CONTROLLER, QCC36, 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36
USB2244II-AEZG MICROCHIP

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 		Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
USB2244II-AEZG-TR MICROCHIP

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 		Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
USB224X MICROCHIP

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 		Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
USB2250 SMSC

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 		Ultra Fast USB 2.0 Multi-Format Flash Media Controller

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