USB224x
Ultra Fast USB 2.0 Multi-Format Flash Media Controller Family

	USB224xUSB225x Family Product Brochure - (PDF File Size=337K)
	USB224x Selector Guide, Data Sheets and Data Briefs
	SMSC Announces USB 2.0 Flash Media Readers for High-Performance Multimedia and Computing Applications
	Go to Hi-Speed USB Page

General Description

The SMSC USB224x is a family of USB 2.0 compliant, high speed Mass Storage Class Peripheral Controllers intended for reading and writing to more than 20 popular flash media formats from the xD Picture Card™ (xD)¹, Memory Stick™ (MS), Secure Digital (SD), and MultiMediaCard™ (MMC) families.

The SMSC USB224x is a fully integrated, single chip solution capable of ultra high performance operation. Average sustained transfer rates exceeding 35MB/s are possible if the media and host can support those rates.

General Features

	36-pin QFN lead-free RoHS compliant package
	Targeted for applications in which single or "combo" media sockets are used
	Hardware-controlled data flow architecture for all self-mapped media
	Pipelined hardware support for access to non-self-mapped media

Hardware Features

	Single Chip Flash Media Controller with multiplexed interface for use with "combo" card sockets Memory Stick Specification 1.43 Memory Stick Pro Format Specification 1.02 Memory Stick Pro-HG Duo Format Specification 1.01 Memory Stick, MS Duo, HS-MS, MS Pro-HG, MS Pro xD Picture Card 1.2 Secure Digital 2.0 HS-SD, HC-SD, TransFlash™ and reduced form factor media MultiMediaCard Specification 4.2 1/4/8 bit MMC
	SDIO and MMC Streaming Mode support
	Extended configuration options xD player mode operation Socket switch polarities, etc.
	Media Activity LED
	GPIO configuration and polarity Up to 8 GPIOs for special function use: LED indicators, power control to memory devices, etc. The number of actual GPIO's depends on the implementation configuration used. One GPIO with up to 200 mA drive.
	On Board 24MHz Crystal Driver Circuit
	Optional external 24MHz clock input
	Internal Card Power FET 200mA "Fold-back" short circuit current protected
	8051 8-bit microprocessor 60MHz - single cycle execution 64KB ROM; 14KB RAM
	Internal Regulator for 1.8V core operation
	Optimized pinout improves signal routing, easing implementation and allowing for improved signal integrity.
	Supports commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges

Mask Programmable Features

	VID/PID/Language ID
	28-character Manufacturer ID and Product string
	12-hex digit (max) Serial Number string
	Customizable Vendor specific data LED blink interval or duration

Software Features

	Optimized for low latency interrupt handling
	Reduced memory footprint

Applications

	Flash Media Card Reader/Writer
	Printers
	Desktop and Mobile PCs
	Consumer A/V
	Media Players/Viewers
	Vista ReadyBoost™
	Compatible with Microsoft Vista, Windows XP, Windows ME, Windows 2K SP4, Apple OSx, and Linux Mass Storage Class Drivers

¹ xD Picture Card not applicable to USB2241, USB2242, USB2244

USB224x Selector Guide

Part Number	SD/MMC	xD	MS/MS Pro/ MS Pro-HG	LUN	-40° to 85°C
USB2240				1
USB2240i				1
USB2241				1
USB2241i				1
USB2242				1
USB2242i				1
USB2244				1
USB2244i				1

Ordering Information, Data Sheets and Data Briefs

Part Number	Package Type	Order Number*	Data Sheet	Data Brief
USB2240	36 QFN	USB2240-AEZG-XX	2240_2241.pdf File Size = 687K	2240_2241db.pdf File Size = 216K
USB2240i	36 QFN	USB2240i-AEZG-XX
USB2241	36 QFN	USB2241-AEZG-XX	2240_2241.pdf File Size = 687K	2240_2241db.pdf File Size = 216K
USB2241i	36 QFN	USB2241i-AEZG-XX
USB2242	36 QFN	USB2242-AEZG-XX
USB2242i	36 QFN	USB2242i-AEZG-XX
USB2244	36 QFN	USB2244-AEZG-XX
USB2244i	36 QFN	USB2244i-AEZG-XX

*Note: "XX" in the order number indicates the internal ROM firmware revision level. Please contact your SMSC sales representative for more information.

All claims made herein speak as of the date of this material. The company does not undertake to update such statements. (4/08)