Datasheet > USB2250

USB2250

更新时间： 2024-11-15 02:55:59

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
43页	472K
描述
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller

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中文翻译

获取价格

数据手册

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USB2250 数据手册

USB2250/50i/51/51i

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller

• Extended configuration options

General Description

- xD player mode operation

- Socket switch polarities, etc.

• Media Activity LED

• 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

The Microchip USB2250/50i/51/51i is a USB 2.0 com-

pliant, Hi-Speed mass storage class peripheral control-

ler intended for reading and writing to more than 24

popular flash media formats from the CompactFlash^®

(CF), SmartMedia^TM(SM), xD-Picture Card^TM(xD)¹,

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

diaCard^TM(MMC) families.

The USB2250/50i/51/51i is a fully integrated, single

chip solution capable of ultra high performance opera-

tion. Average sustained transfer rates exceeding 35

MB/s are possible if the media and host can support

those rates.

• Internal regulator for 1.8 V core operation

• Optimized pinout improves signal routing which

eases implementation for improved signal integ-

rity

Highlights

• 128-pin VTQFP (14x14 mm) 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

OEM Selectable

• Vendor, product, and language IDs

• Manufacturer ID and product strings (28 charac-

ter)

• 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

• 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

Software Features

• Optimized for low latency interrupt handling

• Reduced memory footprint

• Device Firmware Upgrade (DFU) support of exter-

nal 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

Hardware Features

• Single chip flash media controller with non-multi-

plexed interface for independent card sockets

• Flash Media Specification Revision Compliance

- CompactFlash 4.1

- Secure Digital 2.0

- MultiMediaCard 4.2

• Optional custom firmware with up to 128 KB

external ROM

• 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

Applications

• Flash Media Card Reader/Writer

• Printers

• Desktop and Mobile PCs

• Consumer A/V

- SmartMedia 1.3

• Media Players/Viewers

• Vista ReadyBoost^TM

1.) xD-Picture Card not applicable to USB2251.

 2009 - 2015 Microchip Technology Inc.

DS00002005A-page 1

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中文翻译

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与USB2250相关器件

型号	品牌	获取价格	描述	数据表
USB2250I	MICROCHIP	获取价格	Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
USB2250I-NU-06	MICROCHIP	获取价格	USB2250I-NU-06
USB2250I-NU-XX	MICROCHIP	获取价格	IDE COMPATIBLE, FLASH MEMORY DRIVE CONTROLLER, PQFP128, 14 X 14 MM, 1 MM HEIGHT, 0.40 MM P
USB2250-NU-05	MICROCHIP	获取价格	UNIVERSAL SERIAL BUS CONTROLLER
USB2250-NU-06	MICROCHIP	获取价格	USB2250-NU-06
USB2250-NU-XX	MICROCHIP	获取价格	IDE COMPATIBLE, FLASH MEMORY DRIVE CONTROLLER, PQFP128, 14 X 14 MM, 1 MM HEIGHT, 0.40 MM P
USB2251	SMSC	获取价格	Ultra Fast USB 2.0 Multi-Format Flash Media Controller
USB2251	MICROCHIP	获取价格	Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
USB2251I	MICROCHIP	获取价格	Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
USB2251I-NU-06	MICROCHIP	获取价格	USB2251I-NU-06

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