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MD1665-D512: 产品描述udoc flash disk 512mb; 产品类别存储; 文件大小369KB，共24页; 制造商SanDisk(闪迪)

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MD1665-D512概述

udoc flash disk 512mb

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uDiskOnChip (uDOC)

Modular Flash Disk with USB 2.0 Interface

Highlights

Data Sheet, July 2005

The performance of embedded systems in

markets such as Single Board Computers

(SBCs), thin clients, consumer electronics,

Point Of Sale (POS) and telecom, is limited by

IDE-based flash disks. A combination of higher

capacity, higher performance devices is needed

to support larger OSs, heavier GUI applications,

a wide variety of installed applications and

local data storage. uDiskOnChip (uDOC)

answers these needs by merging M-Systems’

expertise in three worlds: the USB 2.0 high-

speed interface, the DiskOnChip industry-

standard flash for embedded systems, and the

SuperMAP

™

cryptographic engine.

uDiskOnChip features:

Exceptional read, write, and erase

performance

Built-in proprietary TrueFFS

technology

for full hard-disk emulation, high data

reliability, and maximum flash lifetime

Data integrity with Error Detection

Code/Error Correction Code (EDC/ECC)

based on a combination of BCH and

Hamming algorithms

Support for major embedded OSs, including

Windows XP Embedded and Linux

Protection and Security Features

Performance

USB 2.0 High-Speed

Sustained Read

Sustained Write

20 MByte/sec

10 MByte/sec

USB 2.0: 480 Mbit/sec high-speed USB

compatible

USB 1.1

12 Mbit/sec full-speed USB compatible

Sustained Read rate: 1 MB/sec

Sustained Write rate: 0.85 MB/sec

Flash Interleave and Fly-By™ algorithm for

improved performance

Data Reliability

SuperMAP cryptographic engine to enable

protected partitions

Data protected in hardware with digital

signature: RSA with 64-byte key

4-bit Error Detection Code/Error Correction

Code (EDC/ECC), based on a patented

combination of BCH and Hamming code

algorithms

Guaranteed data integrity even after power

loss

Transparent bad-block management

Dynamic and static wear-leveling

Wear leveling algorithm that provides more

than

5 million

write/erase cycles for reliable

data storage over an extended period

Data Sheet, Rev. 2.2

94-SR-003-01-8L

ABLE OF

ONTENTS

1. Introduction ............................................................................................................................... 5

2. Product Overview ...................................................................................................................... 6

2.1

2.2

Product Description ............................................................................................................ 6

2x5 Electrical Interface ....................................................................................................... 7

2.2.1

2.2.2

Standard On-Board USB Header ......................................................................................... 7

uDiskOnChip Connector....................................................................................................... 7

3. Theory of Operation .................................................................................................................. 8

3.1

3.2

Block Diagram .................................................................................................................... 8

System Architecture ........................................................................................................... 9

3.2.1

3.2.2

Controller Internal Components ........................................................................................... 9

Controller External Components .......................................................................................... 9

4. TrueFFS Technology............................................................................................................... 10

4.1

4.2

4.3

4.4

4.5

5.1

5.2

Overview........................................................................................................................... 10

Bad-Block Management ................................................................................................... 10

Wear-Leveling .................................................................................................................. 11

Power Failure Management ............................................................................................. 11

Error Detection/Correction................................................................................................ 12

Standards Compliance ..................................................................................................... 13

Environmental................................................................................................................... 13

5.2.1

5.2.2

5.2.3

Temperature ....................................................................................................................... 13

Shock and Vibration ........................................................................................................... 13

Mean Time Between Failures (MTBF) ............................................................................... 13

Horizontal - Single Connector ............................................................................................ 14

Horizontal - Dual Connector ............................................................................................... 14

Low Profile - Single Connector........................................................................................... 15

LED Functionality ............................................................................................................... 16

Dimensions......................................................................................................................... 16

uDiskOnChip-to-USB Adapter............................................................................................ 17

Absolute Maximum Ratings................................................................................................ 18

DC Characteristics ............................................................................................................. 18

5. Specifications .......................................................................................................................... 13

5.3

Mechanical ....................................................................................................................... 14

5.3.1

5.3.2

5.3.3

5.3.4

5.3.5

5.3.6

5.4

Electrical Specifications.................................................................................................... 18

5.4.1

5.4.2

uDiskOnChip Data Sheet, Rev. 2.2

94-SR-003-01-8L

MD1665-D512

MD1665-D512概述

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