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
TM
(SM),
xD-Picture Card
TM
(xD)
1
, Memory Stick
®
(MS), Secure
Digital (SD), and MultiMediaCard
TM
(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
TM
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
TM
SmartMedia
TM
Part Number
xD-Picture Card
TM
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
Copyright © 2009 SMSC or its subsidiaries. All rights reserved.
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
TM
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
2
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
24
24
24
25
27
31
32
34
34
35
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38
39
39
41
42
Chapter 11 GPIO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chapter 12 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
SMSC USB2250/50i/51/51i
3
Revision 2.0 (09-29-09)
DATASHEET
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
List of Tables
Table 5.1 128-Pin VTQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 6.2 Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7.1 Legend for Pin Reset States Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7.2 USB2250/50i/51/51i 128-Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 8.1 Internal Flash Media Controller Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 8.2 nRESET Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 9.1 Crystal Circuit Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10.1 Pin Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10.2 128-Pin VTQFP Package Thermal Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 11.1 GPIO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
20
21
22
25
35
36
41
42
43
Revision 2.0 (09-29-09)
4
SMSC USB2250/50i/51/51i
DATASHEET
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
List of Figures
Figure 3.1
Figure 4.1
Figure 7.1
Figure 7.2
Figure 8.1
Figure 9.1
Figure 9.2
Figure 9.3
Figure 10.1
Figure 12.1
128-Pin VTQFP Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
USB2250/50i/51/51i Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
128-Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
nRESET Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Typical Crystal Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Capacitance Formulas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Ceramic Resonator Usage with SMSC IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Supply Rise Time Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
128-Pin VTQFP, 14x14x1.0 mm Body, 2.0 mm Pitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
SMSC USB2250/50i/51/51i
5
Revision 2.0 (09-29-09)
DATASHEET
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