SMSC USB2250/50i/51/51i PRODUCT PREVIEW Revision 2.0 (09-29-09)
Data Brief
PRODUCT FEATURES
USB2250/50i/51/51i
Ultra Fast USB 2.0 Multi-Slot
Flash Media Controller
General Description
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), SmartMediaTM (SM),
xD-Picture CardTM (xD)1, Memory Stick® (MS), Secure
Digital (SD), and MultiMediaCardTM (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.
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
Hardware Features
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
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
Extended configuration options
— xD player mode operation
— Socket switch polarities, etc.
Media Activity LED
GPIO configuration and polarity
— Up to 11 GPIOs (based on configuration) for special
function use
— Four GPIO’s with up to 200 mA drive
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
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
Software Features
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
Optional custom firmware with up to 128 KB external
ROM
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.
ORDER NUMBER(S):
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 CardTM 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.
Part Number
CompactFlash®
Memory Stick®
Secure Digital
MultiMediaCardTM
SmartMediaTM xD-Picture CardTM Operational
temperature
USB2250-NU-XX 33
0ºC to 70ºC
USB2250i-NU-XX 33
-40ºC to 85ºC
USB2251-NU-XX 30ºC to 70ºC
USB2251i-NU-XX 3-40ºC to 85ºC
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Revision 2.0 (09-29-09) 2 SMSC USB2250/50i/51/51i
PRODUCT PREVIEW
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
SMSC USB2250/50i/51/51i 3 Revision 2.0 (09-29-09)
PRODUCT PREVIEW
Chapter 1 Block Diagram
Figure 2 USB2250/50i/51/51i Block Diagram
FMDU
CTL
8051
PROCESSOR
SFR
RAM
CF/
GPIO (16)
MS
SM
RAM
USB
Host
AUTO_CBW
PROC
PHY
FMI
XDATA BRIDGE
+ BUS ARBITER
BUS
INTFC
BUS
INTFC
BUS
INTFC
EP0 TX
EP0 RX
EP2 TX
EP2 RX
EP1 RX
EP1 TX
ROM
64 KB
RAM
10 KB ADDR
MAP
PWR_FET1
PWR_FET3
11 pins
GPIO8 / CRD_PWR0
GPIO9 / CRD_PWR1
GPIO11 / CRD_PWR3
Clock
Generation and
Control
GPIO10 / CRD_PWR2
SD/
MMC
4K
total
PWR_FET0
PWR_FET2
GPIOs
Program Memory I/O Bus
3.3 V
1.8 V Reg
VDD18
3.3 V
VDD18PLL
PLL
24 MHz
Crystal
SIE
CTL
1.8 V Reg
USB2250 / USB2251
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Revision 2.0 (09-29-09) 4 SMSC USB2250/50i/51/51i
PRODUCT PREVIEW
Chapter 3 Package Outline
Figure 4 128-Pin VTQFP, 14x14x1.0 mm Body, 2.0 mm Pitch
-SEE SPEC FRONT P AG E FO R R EVI SI O N H I STO RY --
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETER.
2. TR UE POSITION S PR EAD TOLE RA NCE OF EAC H LEA D IS ± 0.03 5m m MAXIMU M.
3. DIMENSIONS "D1" AND "E1" DO NOT INCLUDE MOLD PROTRUSIONS. MAXIMUM ALLOWED
P ROTRUSIO N IS 0.25 mm PER SIDE .
4 . D IME NSION "L" IS M EAS URED AT TH E GA UGE P LA NE , 0 .25mm A BOVE TH E SEA TIN G P LANE.
5. DETAILS ON P IN 1 IDENTIFIER ARE OPTIONA L BUT MUST BE LOCATED WITHIN THE ZONE
INDICATED.
TOP VIEW
E1/4
D
D1
E1
e
3D1/4
5
STD COMPLIANCE
I N TE RPR E T DI M AN D T OL PER
AS ME Y14.5 M - 1994
DWG NUMBE R
P RINT WITH "S CALE TO FIT"
DO NOT SCA LE DRAWING
MATE RIA L
FIN I SH
AP PR OVED
CH EC KE D
DR AWN
SCALESHEET
REV
80 AR KAY DRI VE
HA UP PAUGE, NY 11788
USAANGULAR
UNLE SS OT HERWISE SPECIFIED
DIMENSIONS ARE IN MILLIMETERS
AND TOLER AN CE S ARE:
DECIMAL
X.X
X.XX
X.XXX
THI RD ANGLE PROJECT ION
NAME DA TE
TITL E
REVISION DATEDESCRIPTION
R EVISION HISTORY
REL EASED BY
JEDEC: MS-026 (D)
P ACK AG E OU TLINE
1:1
-
-
S. K. ILI EV
S. K. ILI EV
S. K. ILI EV
12/17/04
12/17/04
12/17/04
128 VTQFP-14x14x1.0mm BODY-0.4mm PITCH
M O-1 28 -VTQFP -14 x 14x 1.0
1 OF 1
C
±1°±0.1
±0.05
±0.025
0.25
R1
R2
GAUGE PLANE 0°-7°
4
DETAIL "A"
b
E
2
3
SE E DETAIL "A"
SIDE VIEW
A2
cA1
ccc C
A
SE AT ING P LANE
C
L
L1
3-D VIEW
