Datasheet > USB2244I-AEZG-TR

USB2244I-AEZG-TR

更新时间： 2022-02-26 09:03:45

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
43页	795K
描述
Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers

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数据手册

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USB2244I-AEZG-TR 数据手册

USB224X

Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash

Media Controllers

• Media Activity LED

Highlights

• On board 24 MHz crystal driver circuit

• Optional external 24 MHz clock input³

The Microchip USB224x is a USB 2.0 compliant, Hi-

Speed bulk only¹mass storage class peripheral con-

• Internal card power FET

troller intended for reading and writing to popular flash

- 200 mA

- "Fold-back" short circuit protection

• 8051 8-bit microprocessor

- 60 MHz - single cycle execution

- 64 KB ROM | 14 KB RAM

• Supports a single external 3.3 V supply source;

internal regulators provide 1.8 V internal core volt-

age for additional bill of materials and power sav-

ings

• Optimized pinout improves signal routing which

eases implementation for improved signal integ-

rity

media from the xD-Picture Card^TM(xD)², Memory

Stick^®(MS), Secure Digital (SD), and MultiMedia-

Card^TM(MMC) families.

The USB224x is a fully integrated, single chip solution

capable of ultra high performance operation. Average

sustained transfer rates exceeding 35 MB/s are possi-

ble if the media and host can support those rates. The

USB2244/44i includes provisions to read/write secure

media formats.

General Features

• Low pin count 36-pin QFN (6x6 mm) RoHS com-

pliant package

Flash Media Specification Compliance

• USB2240/40I/41/41I

• Secure Digital 2.0

- HS-SD, SDHC

- TransFlash^TMand reduced form factor media

• MultiMediaCard 4.2

- 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

• Order number with “I” denote the products that

support the industrial temperature range of -40ºC

to 85ºC

• Support included for secure media format on a

licensed, customized basis

- 1/4/8-bit MMC

• Memory Stick Formats

- MS 1.43, Pro 1.02, Duo 1.10

- Pro-HG Duo 1.01

–MS, MS Duo, HS-MS, MS Pro-HG, MS Pro

• xD-Picture Card 1.2

Software Features

- USB2244/44I: SD Secure

• Customizable vendor specific data

• Optimized for low latency interrupt handling

• Reduced memory footprint

Hardware Features

• Single chip flash media controller with

- USB2240/40I/41/4I: multiplexed interface for

use with “combo” card sockets

- USB2244/44I: SD/MMC flash media reader/

writer

• MMC Streaming Mode support

• Extended configuration options

- xD player mode operation

Applications

• Flash media card reader/writers

• Desktop and mobile PCs

• Printers

• Consumer A/V and media players/viewers

• Compatible with

–Microsoft Vista^TMand Vista ReadyBoost^TM

- Socket switch polarities, etc.

–Windows XP, ME, 2K SP4

–Apple Mac OSx

–Linux Mass Storage Class Drivers

1.Bulk only is not applicable to USB2240/40i/41/41i.

2.xD-Picture Card is not applicable to USB2241/41i.

3.Only applicable to USB2240/40i/41/41i.

DS00001979A-page 1

 2010 - 2015 Microchip Technology Inc.

12 3 4 5 6 7...43

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与USB2244I-AEZG-TR相关器件

型号	品牌	描述	获取价格	数据表
USB2244I-AEZG-XX	MICROCHIP	FLASH MEMORY DRIVE CONTROLLER, QCC36, 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36	获取价格
USB2244II-AEZG	MICROCHIP	Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers	获取价格
USB2244II-AEZG-TR	MICROCHIP	Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers	获取价格
USB224X	MICROCHIP	Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers	获取价格
USB2250	SMSC	Ultra Fast USB 2.0 Multi-Format Flash Media Controller	获取价格
USB2250	MICROCHIP	Ultra Fast USB 2.0 Multi-Slot Flash Media Controller	获取价格

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