USB2241-AEZG-06 (Microchip / SMC) USB INTERFACE

http://www.smsc.com/media/Downloads_Public/Data_Sheets/224x.pdf

 

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

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 xDPicture

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

 Low pin count 36-pin QFN (6x6 mm) lead-free RoHS compliant package

 USB2240/40i/41/41i— Targeted for ap. in which single or "combo" media sockets are used

 Hardware-controlled data flow architecture for all selfmapped media

 Pipelined hardware support for access to non-selfmapped media

 Order number with “i” denote the products that support the industrial  range of -40ºC to 85ºC

 Support included for secure media format on a licensed,customized basis

— USB2244/44i: SD Secure

— USB2242/42i: Sony MagicGateTM

 

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,

 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

— 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 footprintApplications

 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