Microchip USB2251 Manual

Microchip Ikke kategoriseret USB2251

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SMSC EVB-USB2250 USER MANUAL Revision 0.3 (03-06-09)

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 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.

EVB-USB2250 User Manual Revision B

Revision 0.3 (03-06-09) 2 SMSC EVB-USB2250

USER MANUAL

1 Overview

The SMSC EVB-USB2250 is an Ultra Fast USB 2.0 Multi-Slot Flash Media Controller with CF, SD,

MS, and xD connectors. The EVB-USB2250 Evaluation Board demonstrates a standalone Hi-Speed

Mass Storage Class Peripheral Controller intended for reading and writing to more than 24 popular

flash media formats from the Compact FlashTM (CF), SmartMediaTM (SM), xD Picture CardTM (xD),

Memory Stick® (MS), Secure Digital (SD), and MultiMediaCardTM (MMC) families.

1.1 Features

Operates either USB bus-powered or from a single voltage (+5.0 Volts, regulated) 'wall wart'

external power supply.

Supports these media types:

- Compact FlashTM 4.1

- MultiMediaCardTM 2.0 / 4.2

- xD Picture CardTM

- Smart MediaTM 1.2 / 1.3

- Secure Digital (SD2.0, HS-SD, HC-SD)

- Memory Stick® 1.43

- Hi-Speed Memory StickTM

- Memory Stick Pro-HGTM

- Memory Stick Duo Memory Stick ProTM

Simultaneous access for up to four memory devices

Flash memory socket for external firmware

Single onboard +3.3 Volt regulator

Internal individual FET power switch for each media socket

Single 24 MHz crystal clock source

Media activity LED

RoHS compliant

Optional serial EEPROM for customized configuration

Optional ESD and EMI footprints are provided

1.2 General Description

The EVB-USB2250 is a platform fe a Controller. The EVB-USB2250aturing the USB2250 Flash Medi

connects to a USB 2.0 port (J1), and optionally to a 5.0 Volt external supply (JP2: 2.1mm, tip -- POS).

The platform provides four media sockets supporting 24 different media formats. This platform

demonstrates a small footprint, low-cost implementation of the USB2250 with a rich feature set. The

platform features a socket for an onboard EEPROM for configuration and serial number data. The

platform also features a socket for a flash memory for external firmware. The schematic for the EVB-

USB2250 indicates the components that are required for each programming and configuration option.

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	USB2251

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