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USB2250

Status: In Production

Features:

  • Optimized for Hi-Speed performance and versatility
  • Supports Smart Media™/xD-Picture Card™, Memory Stick™/Memory Stick PRO™/Memory Stick PRO-HG™, MultiMediaCard™/Secure Digital and Compact Flash®/Compact Flash-UDMA interfaces
  • Capable of high-performance throughput > 35MB/s with new Hi-Speed formats – CF-UDMA, MS PRO-HG
  • Well-suited for PC applications utilizing Microsoft® ReadyBoost™ to improve system performance
  • External or internal ROM option
  • Secure memory format options supported via external or internal memory
  • Supports individual or any combination of sockets
  • Industrial-temp option - designed to meet -40° to 85°C requirements
  • Optional, small footprint, 36-pin QFN package for single or fully-multiplexed card interface designs or space-constrained applications
  • Desktop/Notebook PCs
  • Multi-function Printers
  • Digital TVs
  • Monitors
  • Consumer Audio/Video Devices
  • Stand-alone Flash Media Reader/Writers
  • Digital Picture Frames
  • Media Players
  • Set-top Boxes
  • Gaming Consoles
  • Automobile/Home Audio Systems
  • Industrial Applications
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

Microchip's USB225x family of Hi-Speed USB 2.0 flash media card controllers provides an ultra-fast interface between a USB host controller and today's most popular flash media cards. Offering comprehensive USB 2.0 compliance and interoperability, the USB225x product family is engineered to provide flexibility for system designers to choose independent or simultaneous access to a wide selection of flash media readers. It provides secure memory format options via external or internal memory, and is capable of high-performance throughput with new formats such as CF-Ultra Direct Memory Access (UDMA) and Memory Stick PRO-HG.

The USB225x consists of a USB 2.0 device transceiver, fast 8051 microprocessor and Compact Flash® (CF), Memory Stick™ (MS), Smart Media™ (SM) and Secure Digital (SD) controllers in a single chip. Microchip's new ultra-fast card readers are well-suited for performance-intensive Microsoft® Windows Vista® applications such as ReadyBoost™. PC system performance can be improved by up to 10% when employing ReadyBoost with an Microchip flash media reader.*

*Results are based on actual measurements on evaluation platforms developed by Microchip, and are meant only as a general guideline, not as a guarantee. Actual customer results may vary based on a number of factors, including board layout and measurement technique.

Microchip makes the following part-numbered device available for purchase only by customers who are xD-Picture Card licensees: USB2250. By purchasing or ordering any of such devices, Buyer represents, warrants, and agrees that Buyer is a duly licensed Licensee under an xD-Picture Card™ License Agreement with Fuji Photo Film Co., Ltd., Olympus Optical Co., Ltd., and Toshiba Corporation; and that Buyer will maintain in effect such xD-Picture Card license and will give Microchip reasonable advance notice of any termination or expiration of such xD-Picture Card license, but in no event less than five days advance notice. Microchip may discontinue making such devices available for purchase by Buyer and/or discontinue further deliveries of such devices if such xD-Picture Card license shall expire, terminate, or cease to be in force, or if Buyer is or becomes in default of such xD-Picture Card license.


*The USBCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Additional Features

    Highlights

    • Optimized for Hi-Speed performance and versatility
    • Supports Smart Media™/xD-Picture Card™, Memory Stick™/Memory Stick PRO™/Memory Stick PRO-HG™, MultiMediaCard™/Secure Digital and Compact Flash®/Compact Flash-UDMA interfaces
    • Capable of high-performance throughput > 35MB/s with new Hi-Speed formats – CF-UDMA, MS PRO-HG
    • Well-suited for PC applications utilizing Microsoft® ReadyBoost™ to improve system performance
    • External or internal ROM option
    • Secure memory format options supported via external or internal memory
    • Supports individual or any combination of sockets
    • Industrial-temp option - designed to meet -40° to 85°C requirements
    • Optional, small footprint, 36-pin QFN package for single or fully-multiplexed card interface designs or space-constrained applications

    Applications

    • Desktop/Notebook PCs
    • Multi-function Printers
    • Digital TVs
    • Monitors
    • Consumer Audio/Video Devices
    • Stand-alone Flash Media Reader/Writers
    • Digital Picture Frames
    • Media Players
    • Set-top Boxes
    • Gaming Consoles
    • Automobile/Home Audio Systems
    • Industrial Applications
Parametrics
Name
Value
Description
USB 2.0 Multi-Slot Flash Media Controller
Upstream Port
USB 2.0
USB Speed
Hi Speed
Downstream Ports
CF, SD, MMC, MS, xD
MCU Interface
USB, UART
Tx Buffer Size (bytes)
4k
Rx Buffer Size (bytes)
4k
GPIOs
32
Op Voltage (V)
3.3
ROM I/F
I2C
UART
Yes
Compact Flash
Yes
Secure Digital/ MM cards
1
Memory Stick
Yes
xD Picture Card
Yes
Logical Unit Num (LUN)
4
Temp Range Min (°C)
-40
Temp Range Max (°C)
85

Documents

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Software Library

CAD Resource

Gerber Files

Schematics

User Guides

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
  • Application Examples
Demo & Evaluation Boards
USB2250 Ultra Fast High Speed USB 2.0 Multi-Slot Flash Media Controller Eval
USB2250 Ultra Fast High Speed USB 2.0 Multi-Slot Flash Media Controller Eval ( EVB-USB2250 )

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 high 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 StickTM MS, Secure...

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Software Libraries
OBJ files for USB225x

This directory contains the following:

Revision history of the USB224x and USB225x ROM codes

Card Reader Installation Executables - Version 68

Card Reader...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
USB2250-NU-05
0.557500
2.888889
128
TQFP
14x14x1mm
Matte Tin
e3
USB2250-NU-06
0.557500
2.888889
128
TQFP
14x14x1mm
Matte Tin
e3
USB2250I-NU-06
0.557500
2.888889
128
TQFP
14x14x1mm
Matte Tin
e3
USB2250-NU-05-DR1
0.557500
2.888889
128
TQFP
14x14x1mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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