SanDisk 80-36-03353 Manual de usuario

SanDisk uSSD 5000 Product Manual

SanDisk uSSD 5000

Product Manual

Revision 1

October 08

SanDisk Corporation

Corporate Headquarters • 601 McCarthy Blvd. • Milpitas, CA 95035

Phone (408) 801-1000 • Fax (408) 801-8657

www.sandisk.com

SanDisk uSSD 5000 Product Manual

Table of Contents

1. Introduction ........................................................................................ 3

1.1 General Description....................................................................... 3

1.1.1 Applications ............................................................... 3

1.1.2 Rugged and Reliable.................................................... 3

1.1.3 High Performance ....................................................... 3

1.1.4 Cost Effective ............................................................. 3

1.2 Features...................................................................................... 4

1.3 Scope ......................................................................................... 5

1.3.1 Technology Independence ............................................ 5

1.3.2 Defect and Error Management ...................................... 5

1.3.3 Wear-leveling ............................................................. 5

1.3.4 Bad Block Management................................................ 5

2. Product Specifications ......................................................................... 6

2.1 Formatted Capacities..................................................................... 6

2.2 System Environmental Specifications ............................................... 6

2.3 System Power Requirements .......................................................... 7

2.4 Voltage Ramp Down Recommendation ............................................. 7

2.5 System Performance ..................................................................... 8

2.6 System Reliability ......................................................................... 9

2.6.1 MTTF......................................................................... 9

2.7 Endurance ..................................................................................10

2.8 Electrical Interface .......................................................................10

2.8.1 uSSD Connector ....................................................... 10

2.8.2 Electrical Specifications.............................................. 11

2.9 Physical Specifications ..................................................................12

2.9.1 Standard Configuration .............................................. 12

2.9.2 Low Profile Configuration ........................................... 13

2.9.3 uSSD-to-USB Adapter................................................ 13

2.10 Product Markings and Traceability ..................................................14

2.11 OS Support.................................................................................15

2.12 Regulatory Compliance .................................................................15

Ordering Information ............................................................................. 16

Disclaimer of Liability ............................................................................. 17

SanDisk uSSD 5000 Product Manual

List of Tables

Table 1: Formatted Capacities ................................................................. 6

Table 2: Environmental Specifications ...................................................... 6

Table 3: Power Requirements.................................................................. 7

Table 4: Performance............................................................................. 8

Table 5: Reliability................................................................................. 9

Table 6: uSSD MTTF .............................................................................. 9

Table 7: Host Interface 2x5 On-Board Header ......................................... 10

Table 8: Absolute Maximum Ratings....................................................... 11

Table 10: DC Characteristics for Full-Speed Operation (TA = 25°C) ............ 11

Table 11: DC Characteristics for High-Speed Operation (TA = 25°C)........... 11

Table 11: Physical Dimensions .............................................................. 12

Table 12: OS Support .......................................................................... 15

Table 13: Ordering Information ............................................................. 16

SanDisk uSSD 5000 Product Manual

1. Introduction

1.1 General Description

The SanDisk uSSD takes the benefits of flash storage to new markets with

low-capacity storage requirements, most notably the low-cost PC (LCPC).

Rugged and reliable, it is a fraction of the size and cost of a hard disk drive

(HDD) in the 1 to 16 GB range. SanDisk adds high performance to the uSSD

offering, based on an advanced controller that exemplifies the company’s

years of USB expertise.

1.1.1 Applications

The SanDisk uSSD offers a no-compromise flash-based storage solution for:

LCPCs that need rugged reliability and require up to 4 GB. The uSSD can

meet these requirements more cost-effectively than an HDD

Desktops that support Microsoft® Vista and can benefit from enabling

ReadyBoost® up to 4GB.

Point of sale (POS) stations, where the uSSD replaces the HDD

Blade servers, where the uSSD is ideal to store critical backup files and

provide boot functionality

1.1.2 Rugged and Reliable

Unlike the HDD, the SanDisk uSSD has no moving parts. It keeps working in

challenging environments such as classrooms, kiosks and on space-restricted

server floors. The patented flash management technology brings top data

integrity to the uSSD, even during power losses. Dynamic bad block

management, dynamic and static wear-leveling, and robust error detection

and correction code (EDC/ECC) ensure data reliability.

1.1.3 High Performance

The uSSD achieves a sustained read speed as high as 30 MB/sec and a

sustained write speed of up to 20 MB/sec with single-level cell (SLC)

technology.

1.1.4 Cost Effective

There is no need to pay for more capacity than you require. The uSSD lets you

purchase just the right amount of storage, packed inside a memory device

that’s 25% smaller than a 1.8” HDD. It offers you the choice of single-level

cell (SLC) flash technology or the more cost-effective multi-level cell (MLC)

technology.

SanDisk uSSD 5000 Product Manual

1.2 Features

The SanDisk uSSD 5000 provides the following system features:

Non-volatile storage (no battery required)

USB 2.0 interface, certified by the USB organization

(http://www.usb.org/home)

Complies with Microsoft Vista ReadyBoost® requirements

Up to 16 GB of mass storage based on SanDisk’s reliable flash technology

SLC flash and MLC flash-based configurations

Fixed configuration (not removable)

Low power consumption

High performance:

Sustained Read and write speed of up to 30 MB/sec for reading, 20 MB/sec

for writing (SLC configuration)

Rugged

Lightweight

Silent

Standard and low profile

Advanced error detection and error correction algorithms

Advanced wear-leveling algorithms

Guaranteed data integrity even after power loss

MTTF > 8,000,000 hours

Multiple OS support

Warranty: 3 years

SanDisk uSSD 5000 Product Manual

1.3 Scope

This document describes the key features and specifications of the uSSD 5000,

as well as the information required to interface this product to a host system.

1.3.1 Technology Independence

To write or read a sector (or multiple sectors), the host computer software

simply issues a Read or Write command to the module.

This command contains the address and the number of sectors to write/read.

The host software then waits for the command to be completed.

The host software does not participate in the details of how the flash memory

is erased, programmed or read. This is extremely important as flash devices

are expected to increase in complexity in the future. Because the uSSD 5000

uses an intelligent on-board controller, the host system software will not need

to be changed as new flash memory evolves. As such, systems that support

uSSD 5000 now will be able to access future SanDisk Modules built with new

flash technology without any need to update or change the host software.

1.3.2 Defect and Error Management

The uSSD 5000 contains a sophisticated defect and error management

system.

If necessary, the Module will rewrite data from a defective sector to a good

sector. This is completely transparent to the host and does not consume any

user data space.

The uSSD 5000 soft error rate specification is much better than the magnetic

disk drive specification.

In the extremely rare case that a read error does occur, the uSSD 5000 has

innovative algorithms to recover the data by using hardware on-the-fly Error

Detection Code/Error Correction Code (EDC/ECC), based on a BCH algorithm.

These defect and error management systems, coupled with solid state

construction, give the SanDisk uSSD 5000 unparalleled reliability.

1.3.3 Wear-leveling

Wear-leveling is an inherent part of the erase-pooling functionality of the

SanDisk uSSD 5000, using NAND memory.

Advanced features of dynamic and static wear-leveling and automatic block

management are used to ensure high data reliability and maximize flash life

expectancy.

1.3.4 Bad Block Management

Bad blocks are occasionally created during the lifecycle of a flash component,

in a phenomenon called dynamic bad block accumulation. These bad blocks

must be dynamically marked and replaced to prevent read/write failures.

When a bad block is detected, the embedded bad block mapping algorithm

maps out the block, which is then no longer used for storage.

SanDisk uSSD 5000 Product Manual

2. Product Specifications

For all the following specifications, unless otherwise stated, values are defined

at ambient temperature and nominal supply voltage.

2.1 Formatted Capacities

Table 1 shows the formatted capacities for the uSSD 5000:

Table 1: Formatted Capacities

Capacity

[GB]

Capacity (formatted

in bytes)

Sectors/Module

(Max. LBA+1)

No. of

Heads

No. of Sectors/

Track

No. of

Cylinders

SLC Configurations

1,002,438,656

1,957,537

1,942

2,048,900,608

4,001,760

3,969

4,110,188,032

8,027,712

7,963

8,220,645,376

16,055,949

15,928

MLC Configurations

2,048,900,608

4,001,760

3,969

4,110,188,032

8,027,712

7,963

8,220,645,376

16,055,949

15,928

16,441,481,216

32,112,269

31,857

2.2 System Environmental Specifications

Table 2 lists the environmental specifications, including temperature, noise

level, vibration, shock and altitude.

Table 2: Environmental Specifications

Specification

Parameters

Temperature

Operating (Commercial): 0° C to 70° C

Storage temp without user data retention: -40° C to 85° C

Storage temp with user data retention: 0° C to 70° C

Noise Level

0 dB

Vibration

Operating: 2.17gRMS (20Hz to 2000Hz, 3 vibration axes, 60 min)

Non operating: 3.08 gRMS (20 Hz to 2000 Hz)

Shock

Operating: 50 g, 11 msec duration, half sine

Non operating: 1,500 g, 0.5 msec duration, half sine

Altitude (relative to sea

level)

80,000 ft. maximum

ESD

Contact discharge: Up to 4 KV (enclosed in a host)

Air discharge: Up to 8 KV (enclosed in a host)

Flammability ratings for

major components

PCB: 888-1 94V0 HK

ASIC Packaging materials: 94V0

Flash packaging materials: 94V0

Labels: CM-100-SM, CM-200-WS

SanDisk uSSD 5000 Product Manual

2.3 System Power Requirements

All values quoted in Table 3: Power Requirements

are typical at 25° C and nominal supply voltage unless otherwise stated.

Table 3: Power Requirements

Power Mode

5V +/- 10% IDD

Products

SLC 1GB, 2GB, 4GB,

8GB

MLC 2GB

MLC 4GB, 8GB, 16GB

Standby

2.5 mA

Operating HS Read

150 mA

200 mA

Operating HS Write

150 mA

200 mA

Idle HS

100 mA

2.4 Voltage Ramp Down Recommendation

Memory

Min

Typ

Max

Unit

Tpoff

Binary

MLC

Vflash_protect

Any

4.27

4.38

4.49

Vflash_min

Any

2.7

Vflash_min

Vflash_protect

Tpoff

SanDisk uSSD 5000 Product Manual

2.5 System Performance

Table 4 lists the performance parameters of the SLC and MLC flash-based

configurations:

Table 4: Performance

Specification

Parameters

Maximum performance for 1 GB, 2 GB, 4GB and 8GB (SLC flash

configurations)

Sequential Read

30 MB/sec

Sequential Write

20 MB/sec

Random Read

30 MB/sec

Random Write

6 MB/sec

Maximum performance for 2 GB (MLC configuration)

Sequential Read

27 MB/sec

Sequential Write

6 MB/sec

Random Read

25 MB/sec

Random Write

2.2 MB/sec

Maximum performance for 4 GB, 8 GB and 16GB (MLC configuration)

Sequential Read

27 MB/sec

Sequential Write

12 MB/sec

Random Read

25 MB/sec

Random Write

3.5 MB/sec

Host compatibility

USB 2.0

Up to 60 MB/sec

Note: Random read and write were measured on Windows 2000 with HDBench on a 100MB file transfer

SanDisk uSSD 5000 Product Manual

2.6 System Reliability

Table 5: Reliability

Specification

Parameters

Data Reliability

Error detection / error correction based on

BCH algorithm

Data integrity after power loss

Data is guaranteed after power loss

Bad blocks

Transparent bad block management

Wear-leveling

Dynamic and Static Wear-leveling

2.6.1 MTTF

The reliability figure of merit most often used for electronic equipment is Mean

Time To Failure (MTTF). SanDisk estimates MTTF using a prediction

methodology based on reliability data for the individual components in

SanDisk products.

Component data comes from several sources: device life tests, failure analysis

of earlier equipment, device physics, and field returns.

SanDisk uses following methods to predict reliability:

Telcordia Special Report SR-332, Reliability Prediction Procedure for

Electronic Equipment (RPP).

British Telecom Industry HRD5, Handbook of Reliability Data for Electronic

Components used in Telecommunication System.

Table 6 summarizes the MTTF prediction results for various uSSD

configurations. The analysis was performed using a RAM Commander™ failure

rate prediction.

Failure Rate: The total number of failures within an item population,

divided by the total number of life units expended by that population,

during a particular measurement interval under stated condition.

Mean Time To Failures (MTTF): A basic measure of reliability for

repairable items: The mean number of life units during which all parts of

the item perform within their specified limits, during a particular

measurement interval under stated conditions.

Table 6: uSSD MTTF

Product

Condition

MTTF (Hours)

1GB, 2GB, 4GB

Telcordia SR-332, GB, 25°C

10M

8GB, 16GB

Telcordia SR-332, GB, 25°C

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