SanDisk USSD 5000 User Manual

SanDisk uSSD

Product Manual

5000 Solid State Drive

Revision 0.3

April 2007

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System Performance ..................................................................... 7

2.5System Reliability ......................................................................... 7

2.5.1 MTTF.........................................................................8

2.6Endurance ................................................................................... 9

2.7Electrical Interface........................................................................ 9

2.7.1 uSSD Connector .........................................................9

2.7.2 Electrical Specifications.............................................. 10

2.8Physical Specifications..................................................................11

2.8.1 uSSD-to-USB Adapter................................................ 12

2.9Product Markings and Traceability..................................................12

2.10OS Support.................................................................................13

2.11Regulatory Compliance.................................................................13

Appendix A.Ordering Information ..................................................... 14

Appendix B.Limited Warranty............................................................ 15

Appendix C.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 ............................................................................. 7

Table 5: Reliability................................................................................. 8

Table 6: uSSD MTTF .............................................................................. 8

Table 7: Endurance................................................................................ 9

Table 8: Host Interface 2x5 On-Board Header ........................................... 9

Table 9: Absolute Maximum Ratings....................................................... 10

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

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

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

Table 13: OS Support .......................................................................... 13

Table 14: Ordering Information ............................................................. 14

SanDisk uSSD 5000 Product Manual

1. Introduction

1.1 General Description

The SanDisk uSSDTM 5000 Solid State Drive (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 8 GB range. SanDisk adds high performance to the uSSD offering, with 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 storage. The uSSD can meet these requirements more cost-effectively than an HDD.

• Desktops that support Microsoft® Vista and can benefit from enabling ReadyBoost®.

• 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 in space-restricted server racks. 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 31.6 MB/sec and a sustained write speed of up to 24.8 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 4 times smaller than a 1.8” HDD. It offers you the cho ice 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

• Complies with Microsoft Vista ReadyBoost® requirements

• Up to 8 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 31.6 MB/sec for reading,

24.8 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* > 4,000,000 hours

• Multiple OS support

• Warranty: 3 years

* Based on internal testing. The MTTF calculation does not take into account the disk endurance limitation. For the disk endurance, please refer to the endurance section on page 9.

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 ne w 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.

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