General Description
	Leading Features
	Typical Configuration Options
	Customer Benefits
	Applications
	Data Sheet, Application Notes, Drivers and Design Tools

General Description

The USB2228 is a 4th generation USB 2.0 Flash Card Media that provides the interface between a USB Host Controller and Flash Media Cards.

The USB2228 features xD-Picture Card™ format support for licensees of that format.

The USB2228 provides a single chip solution for the most popular flash memory cards in the market.

The device consists of a USB 2.0 device PHY and SIE, buffers, Fast 8051 microprocessor with expanded scratchpad, and program SRAM, and CF, MS, SM and SD controllers. The device can support up to 4 slot operation.

Provision for external Flash Memory up to 64K bytes for program storage is provided.

Leading Features

Format Support - complete system solution for interfacing leading flash media formats to USB bus:

	SmartMedia™ (SM) and XD-Picture Card ™ (xD) versions 1.0, 1.1 and 1.2
	Memory Stick™ (MS), High Speed Memory Stick (HSMS), Memory Stick PRO (MSPRO) and Memory Stick Duo (MSDUO and MSDUO Pro)
	Secure Digital (SD), High Speed Secure Digital and MINI Secure Digital
	MultiMediaCard™ (MMC), Reduced Size MMC (RS-MMC) and compatible with all versions of MMC 4.0
	NAND Flash
	Compact Flash™ I and II (CF)
	CF form-factor ATA hard drives like Microdrive

BOM Cost Reduction Enhancements:

	Three short circuit protected on chip power MOSFETS for direct power control of the xD-Picture Card, Memory Stick and Secure Digital interfaces. (Compact Flash still remains external due to the high current requirements for Microdrives.)
	Selectable 24/48MHz clock input option to eliminate external crystal.

Key features:

	xD-Picture Card Certified - Certificate #AA-PG0022
	Supports firmware upgrade via USB bus for systems that use external flash memory
	Compatibilty tested on chip ROM support for the latest flash media specifications: SmartMedia Electrical Specification Version 1.40 SmartMedia Physical Format Specifications Version 1.40 SmartMedia Logical Format Specifications Version 1.30 MultiMediaCard System Specification Version 4.0 SD Memory Card Specifications Version 1.1 Memory Stick Standard Format Specification Version 1.40-00 Memory Stick Pro Standard Format Specifications Version 1.01-01 Memory Stick Duo Standard Format Specifications Version 1.10-00 Memory Stick Implementation Checklist Procedures Version 1.00-01 CompactFlash Specification Rev 2.0 xD-Picture Card Specification Version 1.2
	Hardware support for High Speed Secure Digital and SD Secure
	Features Programmable by Attribute Bit on external 256B EEPROM: LUN configuration and assignment USB SmartDetach™ when no media card is inserted for power savings SD Card Write Protect polarity SD Card Read Only operation Customizable Inquiry Command operation LED polarity, blink rate and operation Bus or Self Powered Forced USB 1.1 reporting
	Boot from Flash Media - Supports USB Bulk Only Mass Storage Compliant Bootable BIOS
	Up to 4 slot operation - Support for simultaneous operation of cards
	On-Chip 4-Bit High Speed Memory Stick and MS PRO Hardware Circuitry
	USB-IF Specification 2.0 Compatibility for Bus Powered Operation TID#40002526
	WHQL File Number 915937

Memory Configuration Options

Device Includes

	USB 2.0 HS/FS Transceiver
	Three short circuit protected card power FETs targeted for use with the Secure Digital/MultimediaCard, Memory Stick and Smart Media/xD-Picture Card slots
	A Bi-directional Control and a Bi-directional Bulk Endpoint are provided
	Internal or External Program Memory Interfaces
	64K Byte Internal ROM Code Space or Optional 64K Byte External Code Space using Flash, SRAM or EPROM memory
	15 GPIOs for special function use: LED indicators, button inputs, power control to memory devices, etc.
	Inputs capable of generating interrupts with either edge sensitivity
	Compatible with Microsoft WinXP, WinME, Win2K SP3, Apple OS10, Softconnex and Linux Multi-LUN Mass Storage Class Drivers
	Win2K, Win98/98SE and Apple OS8.6 and OS9 Multi-LUN Mass Storage Class Drivers available from SMSC
	128 Pin VTQFP Lead-free RoHS Compliant Package (1.0mm height, 14mm x14mm footprint)

Benefits:

	Customers benefit from the high quality on chip ROM code that is compatibility and compliance tested for the latest format support.
	Card compatibility testing across manufacturers ensures good end customer experience and obsoletes the need for flash program memory except for systems with custom features.
	Mask ROM operation enables lowest cost for embedded Flash Card Reader Applications.
	Integrated card power FETs decrease BOM cost and increase reliability.
	Firmware and hardware low power features enable USB bus powered applications and portable applications by configuration from EEPROM.
	Flexible program memory and configuration options provide the greatest flexibility for adding features or enabling upgrade of features in the field via USB bus.
	New levels of integration with on chip short circuit protected card power MOSFETS to reduce BOM costs to the minimum.
	Strong Flash Media Read/Write performance enables the benefits of USB 2.0 transfer speeds to be realized by end customers.
	Robust silicon design enables two layer board design for 4 slot card readers.

Customer Profile:

	Customers who want to add flash media card reader slots to their product.
	Customers that have USB Host ports available to connect to the card reader IC.

Applications:

	Photo and MFP Printers
	Desktop PC embedded card readers
	Laptop Card Readers
	MP3 Players
	Digital Televisions
	Game Consoles
	Digital Media Centers
	Set top box - Home Gateway
	Standalone Card Readers

USB2228 Data Sheet, Application Notes,
Drivers and Design Tools

Description	File Name	File Size	Date
USB2228 Data Brief	2227_2228db.pdf	173K	11/1/07
USB2228 Data Sheet	2227_2228.pdf	400K	11/1/07
Customer Reference Board
EVB2228-CRB    Schematic, ORCAD 7.2    Schematic, PDF    Bill of Materials, PDF    Users Guide, PDF    Gerber Files	evb2228crb.dsn evb2228crb.pdf evb2228crbbom.pdf evb2228crbuser.pdf evb2228crbgerber.zip	5168K 69K 21K 169K 978K	12/7/04 12/6/04 12/7/04 12/14/06 11/30/04
Application Notes
Application Note 9-18: SMSC USB 2.0 Analog Routing Guidelines	an918.pdf	142K	7/9/02
Application Note 10-5: Designing USB97C223 Systems for Bus Power Certification	an105.pdf	218K	7/15/03
Application Note 10-18: Designing Systems with xD-Picture Card™ Support	an1018.pdf	580K	9/28/04
Application Note 12-9: USB 2.0 Mass Storage Controller Memory Configuration Guide	an129.pdf	161K	3/28/06
Application Note 13-12: USB2005 and USB97C202 Sharing ATA/ATAPI Drive with Another Controller	an1312.pdf	168K	7/29/05
Application Note 14-18: Design Guidelines for USB22XX/USB260X Hi-Speed SD	an1418.pdf	215K	6/1/06
White Paper
White Paper 1-4: USB 2.0 Flash Performance	wp14.pdf	196K	5/14/04
White Paper 1.5 - USB2227 and USB2228 USB 2.0 Flash Card Reader Media Power Considerations	wp15.pdf	166K	3/31/05
Object Code
USB2228 Object Code	OBJ Card Reader
Other Information
Using the Adobe® Acrobat® Reader	aacrobat.html

Other Design Support Available

	Flash Media Standards Licensing Contact Information
	Card Manufacturer Compatibility Testing (Software Release Notes)
	Read/Write Performance Testing (Software Release Notes)
	USB IF Certification Lab Report Summary
	IBIS Models
	Qualification Report (Contact SMSC Sales)
	Vendor Specific Command Support Specifications
	BIOS Boot Over USB Compatibility Testing Report
	Memory Stick and xD-Picture Card Certification and Lab Test Results

Available from SMSC under Software License Agreement (SLA):

	Click Wrap SLA Agreement for Object Code on SMSC Website
	Manufacturing Utilities
	Software Release Notes (Important for Attribute Bit Settings and Descriptions)
	Software Test Report (Matrix of OS and PC Chipset Testing)
	Windows 98 and 2000 Multi-LUN Drivers
	Email Notification of New Firmware Object Code Downloadable Over the SMSC Secure Website

In order to develop, make, use, or sell readers and/or other products using or incorporating any of the SMSC devices made the subject of this document or to use related SMSC software programs, technical information and licenses under patent and other intellectual property rights from or through various persons or entities, including without limitation media standard companies, forums, and associations, and other patent holders may be required. These media standard companies, forums, and associations include without limitation the following: Sony Corporation (Memory Stick, Memory Stick PRO); SD3 LLC (Secure Digital); MultiMediaCard Association (MultiMediaCard); the SSFDC Forum (SmartMedia); the Compact Flash Association (CompactFlash); and Fuji Photo Film Co., Ltd., Olympus Optical Col, Ltd., and Toshiba Corporation (xD-Picture Card). SMSC does not make such licenses or technical information available; does not promise or represent that any such licenses or technical information will actually be obtainable from or through the various persons or entities (including the media standard companies, forums, and associations), or with respect to the terms under which they may be made available; and is not responsible for the accuracy or sufficiency of, or otherwise with respect to, any such technical information.

SMSC's obligations (if any) under the Terms of Sale Agreement, or any other agreement with any customer, or otherwise, with respect to infringement, including without limitation any obligations to defend or settle claims, to reimburse for costs, or to pay damages, shall not apply to any of the devices made the subject of this document or any software programs related to any of such devices, or to any combinations involving any of them, with respect to infringement or claimed infringement of any existing or future patents related to solid state disk or other flash memory technology or applications ("Solid State Disk Patents"). By making any purchase of any of the devices made the subject of this document, the customer represents, warrants, and agrees that it has obtained all necessary licenses under then-existing Solid State Disk Patents for the manufacture, use and sale of solid state disk and other flash memory products and that the customer will timely obtain at no cost or expense to SMSC all necessary licenses under Solid State Disk Patents; that the manufacture and testing by or for SMSC of the units of any of the devices made the subject of this document which may be sold to the customer, and any sale by SMSC of such units to the customer, are valid exercises of the customer's rights and licenses under such Solid State Disk Patents; that SMSC shall have no obligation for royalties or otherwise under any Solid State Disk Patents by reason of any such manufacture, use, or sale of such units; and that SMSC shall have no obligation for any costs or expenses related to the customer's obtaining or having obtained rights or licenses under any Solid State Disk Patents.

SMSC MAKES NO WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, IN REGARD TO INFRINGEMENT OR OTHER VIOLATION OF INTELLECTUAL PROPERTY RIGHTS. SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES AGAINST INFRINGEMENT AND THE LIKE.

No license is granted by SMSC expressly, by implication, by estoppel or otherwise, under any patent, trademark, copyright, mask work right, trade secret, or other intellectual property right.