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USB2250 Datasheet, PDF (1/36 Pages) SMSC Corporation – Ultra Fast USB 2.0 Multi-Format Flash Media Controller | |||
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USB2250/51/59
Ultra Fast USB 2.0 Multi-Format
Flash Media Controller
PRODUCT FEATURES
Datasheet
General Description
The SMSC USB2250/51/59 is a USB 2.0 compliant, high
speed Mass Storage Class Peripheral Controller intended for
reading and writing to more than 24 popular flash media
formats from the CompactFlash® (CF), SmartMediaTM (SM),
xD Picture CardTM (xD)1, Memory StickTM (MS), Secure
Digital (SD), and MultiMediaCardTM (MMC) families.
The SMSC USB2250/51/59 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.
General Features
 128-pin VTQFP lead-free RoHS compliant package
 Targeted for applications in which single or "combo"
media sockets are used. Supports multiple simultaneous
card insertions
 Flexible assignment of number of LUNs and how card
types are associated with the LUNs
 Hardware-controlled data flow architecture for all self-
mapped media
 Pipelined hardware support for access to non-self-
mapped media
Hardware Features
 Single Chip Flash Media Controller with non-multiplexed
interface for independent card sockets
 Flash Media Specification Revision Compliance
â Compact Flash Specification 4.1
â CF UDMA Modes 0-4
â CF PIO Modes 0-6
â Memory Stick Specification 1.43
â Memory Stick Pro Format Specification 1.02
â Memory Stick Pro-HG Duo Format Specification 1.01
â Memory Stick, MS Duo, HS-MS, MS Pro-HG, MS Pro
â xD Picture Card 1.2
â Smart Media Specification 1.3
â Secure Digital 2.0
â HS-SD, HC-SD, TransFlash⢠and reduced form factor
media
â MultiMediaCard Specification 4.2
â 1/4/8 bit MMC
 SDIO and MMC Streaming Mode support
 Extended configuration options
â xD player mode operation
â Socket switch polarities, etc.
 Media Activity LED
 GPIO configuration and polarity
â Up to 11 GPIOs (based on configuration) for special
function use: LED indicators, button inputs, power
control to memory devices, etc.
â Four GPIOâs with up to 200 mA drive.
â An additional 16 GPIOâs if CF is not used.
 On Board 24MHz Crystal Driver Circuit
 Optional external 24MHz clock input
 4 Independent Internal Card Power FETs
â 200mA each
â "Fold-back" short circuit current protected
 8051 8-bit microprocessor
â 60MHz - single cycle execution
â 64KB ROM2; 14KB RAM
 Internal Regulator for 1.8V core operation
 Optimized pinout improves signal routing, easing
implementation and allowing for improved signal integrity.
OEM Selectable Features
 VID/PID/Language ID
 28-character Manufacturer ID and Product string
 12-hex digit (max) Serial Number string
 Customizable Vendor specific data by optional use of
external serial EEPROM
 Bus- or Self-powered selection
 LED blink interval or duration
 Internal power FET configuration
Software Features
 Optimized for low latency interrupt handling
 Reduced memory footprint
 Device Firmware Upgrade (DFU) support of external
EEPROM or External Flash
â Assembly line support
â End user field upgrade support
â DFU Package consists of driver, firmware, sample DFU
application and source code, DFU driver API
 Optional (Mandatory on the USB2259) custom firmware
with external ROM (up to 128k)
 Please see the USB2250/USB2251 Software Release
Notes for additional Software Features
Applications
 Flash Media Card Reader/Writer
 Printers
 Desktop and Mobile PCs
 Consumer A/V
 Media Players/Viewers
 Vista ReadyBoostTM
1.) xD Picture Card not applicable to USB2251
SMSC USB2250/51/59
2.USB2259 uses external ROM only, internal ROM unavailable
DATASHEET
Revision 2.6 (05-08-08)
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