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USB2250I-NU-XX: 产品描述usb 接口集成电路 ultra fast usb 2.0 flash media ctrl; 产品类别半导体其他集成电路（IC）; 文件大小966KB，共44页; 制造商SMC; 官网地址http://www.smc-diodes.com/; 标准

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USB2250I-NU-XX概述

usb 接口集成电路 ultra fast usb 2.0 flash media ctrl

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USB2250/50i/51/51i

Ultra Fast USB 2.0 Multi-Slot

Flash Media Controller

PRODUCT FEATURES

The SMSC USB2250/50i/51/51i is a USB 2.0 compliant, Hi-

Speed mass storage class peripheral controller intended for

reading and writing to more than 24 popular flash media

formats from the CompactFlash

(CF), SmartMedia

(SM),

xD-Picture Card

(xD)

, Memory Stick

(MS), Secure

Digital (SD), and MultiMediaCard

(MMC) families.

The SMSC USB2250/50i/51/51i 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.

Datasheet

GPIO configuration and polarity

— Up to 11 GPIOs (based on configuration) for special

function use

— Four GPIO’s with up to 200 mA drive

General Description

16 additional GPIO's are available if CF is not used

On board 24 MHz crystal driver circuit

Optional external 24 MHz clock input

4 Independent internal card power FETs

— 200 mA each

— "Fold-back" short circuit protection

8051 8-bit microprocessor

— 60 MHz - single cycle execution

— 64 KB ROM | 14 KB RAM

General Features

128-pin VTQFP (14x14 mm) 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

Order number with “i” denotes the version that supports

the industrial temperature range of -40ºC to 85ºC

Single chip flash media controller with non-multiplexed

interface for independent card sockets

Flash Media Specification Revision Compliance

— CompactFlash 4.1

— Secure Digital 2.0

— MultiMediaCard 4.2

Internal regulator for 1.8 V core operation

Optimized pinout improves signal routing which eases

implementation for improved signal integrity

OEM Selectable Features

Vendor, product, and language IDs

Manufacturer ID and product strings (28 character)

Serial number string (12h digit max)

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

Optimized for low latency interrupt handling

Reduced memory footprint

Device Firmware Upgrade (DFU) support of external

EEPROM or External Flash

— Assembly line support

— End user field upgrade support

— DFU Package consists of driver, firmware, sample DFU

application and source code, DFU driver API

Software Features

Hardware Features

SDIO and MMC Streaming Mode support

—

Memory Stick 1.43

Memory Stick Pro Format 1.02

Memory Stick Duo Format 1.10

Memory Stick Pro-HG Duo Format 1.01

xD-Picture Card 1.2

SmartMedia 1.3

Optional custom firmware with up to 128 KB external

ROM

Applications

Extended configuration options

— xD player mode operation

— Socket switch polarities, etc.

Media Activity LED

Flash Media Card Reader/Writer

Printers

Desktop and Mobile PCs

Consumer A/V

Media Players/Viewers

Vista ReadyBoost

1.) xD-Picture Card not applicable to USB2251.

SMSC USB2250/50i/51/51i

DATASHEET

Revision 2.0 (09-29-09)

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller

Datasheet

ORDER NUMBER:

CompactFlash

Memory Stick

Secure Digital

MultiMediaCard

SmartMedia

Part Number

xD-Picture Card

Operational

temperature

0ºC to 70ºC

-40ºC to 85ºC

0ºC to 70ºC

-40ºC to 85ºC

USB2250-NU-XX

USB2250i-NU-XX

USB2251-NU-XX

USB2251i-NU-XX

128-Pin VTQFP Lead-Free RoHS Compliant Package

“XX” in the order number indicates the internal ROM firmware revision level.

Please contact your SMSC sales representative for more information.

80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123

Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete

information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no

responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice.

Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey

to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales

are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement

dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors known as anomalies which may cause

the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended,

authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property

damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the

customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at

http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the

trademarks of their respective holders.

SMSC makes the following part-numbered device available for purchase only by customers who are xD-Picture Card licensees: USB2250/USB2250i.

By purchasing or ordering any of such devices, Buyer represents, warrants, and agrees that Buyer is a duly licensed Licensee under an xD-Picture Card

License

Agreement with Fuji Photo Film Co., Ltd., Olympus Optical Co., Ltd., and Toshiba Corporation; and that Buyer will maintain in effect such xD-Picture Card license and will

give SMSC reasonable advance notice of any termination or expiration of such xD-Picture Card license, but in no event less than five days advance notice. SMSC may

discontinue making such devices available for purchase by Buyer and/or discontinue further deliveries of such devices if such xD-Picture Card license shall expire, terminate,

or cease to be in force, or if Buyer is or becomes in default of such xD-Picture Card license.

SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES

ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT,

SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM

OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE;

WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED

OF THE POSSIBILITY OF SUCH DAMAGES.

SMSC USB2250/50i/51/51i

Revision 2.0 (09-29-09)

DATASHEET

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller

Datasheet

Table of Contents

Chapter 1 Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Chapter 2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 3 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 5 Pin Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.1

128-Pin Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Chapter 6 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.1

6.2

128-Pin VTQFP Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Chapter 7 Pin Reset State Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7.1

128-Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Chapter 8 Configuration Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.1

8.2

Card Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.1.1

VBus Detect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.1

EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.2

EEPROM Data Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.3

EEPROM Data Descriptor Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.4

A0h-A7h: Device Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.5

Device ID Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Default Configuration Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.3.1

External Hardware nRESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.3.2

USB Bus Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.3

Chapter 9 AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.1

9.2

9.3

Oscillator/Crystal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Ceramic Resonator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

External Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Chapter 10 DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1

10.2

10.3

10.4

10.5

Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package Thermal Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 11 GPIO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Chapter 12 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

SMSC USB2250/50i/51/51i

Revision 2.0 (09-29-09)

DATASHEET

USB2250I-NU-XX

USB2250I-NU-XX概述

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