FlashDrive
Product Manual
(1.8", 2.5" and 3.5" Form Factors)
TEL: 408-542-0500 FAX: 408-542-0503
SanDisk Corporation
140 Caspian Court
Sunnyvale, CA 94089
URL: http://www.sandisk.com
SanDisk® Corporation general policy does not recommend the use of its products in life support applications where in a
failure or malfunction of the product may directly threaten life or injury. Per SanDisk Terms and Conditions of Sale, the user
of SanDisk products in life support applications assumes all risk of such use and indemnifies SanDisk against all damages.
SanDisk FlashDrives are UL (Underwriters Laboratories) approved. They are for use only with UL approved computers or
systems. See this manual for FlashDrive installation instructions.
The information in this manual is subject to change without notice.
SanDisk Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or
consequential damages resulting from the furnishing, performance, or use of this material.
All parts of the SanDisk product documentation are protected by copyright law and all rights are reserved. This
documentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic
medium or machine readable form without prior consent, in writing, from SanDisk Corporation.
SanDisk and the SanDisk logo are registered trademarks of SanDisk Corporation.
Product names mentioned herein are for identification purposes only and may be trademarks and/or registered trademarks of
their respective companies.
© 1999 SanDisk Corporation. All rights reserved.
The SanDisk products are covered or licensed under one or more of the following U.S. Patent Nos. 5,070,032; 5,095,344;
5,168,465; 5,172,338; 5,198,380; 5,200,959; 5,268,318; 5,268,870; 5,272,669; 5,418,752; 5,602,987. Other U.S.
and foreign patents awarded and pending.
Lit. No. 80-36-00096 Rev. 1 1/99 Printed in U.S.A.
Revision History
• Preliminary versions—initial release.
• Revision 1 1/99—includes changes to pages 17 and 19.
FlashDrive Product Manual © 1999 SANDISK CORPORATION2
FlashDrive Product Manual
Table of Contents
1.0 Introduction..............................................................................................7
1.1 Scope.................................................................................................................................8
1.2 FlashDrive Product Models................................................................................................8
1.3 System Features.................................................................................................................9
1.4 Related Documentation......................................................................................................9
1.5 Functional Description.......................................................................................................9
1.5.1 Flash Technology Independence...............................................................................9
1.5.2 Defect and Error Management..................................................................................9
1.5.3 Endurance..............................................................................................................10
1.5.4 Wear Leveling......................................................................................................10
1.5.5 Automatic Sleep Mode...........................................................................................10
1.5.6 Power Supply Requirements...................................................................................10
2.0 FlashDrive Product Specifications..................................................................11
2.1 FlashDrive System Environmental Specifications.............................................................11
2.2 System Power Requirements .............................................................................................12
2.3 System Performance.........................................................................................................12
2.4 System Reliability and Maintenance ...............................................................................13
2.5 Physical Specifications....................................................................................................13
2.6 Capacity Specifications ..................................................................................................14
3.0 Installation and Mounting............................................................................20
3.1 Preparing to Install the FlashDrive.................................................................................20
3.2 Installing the FlashDrive in a Two Drive Configuration...................................................20
3.2.1 Jumper Settings for 1.8- and 2.5-inch FlashDrives...................................................20
3.2.2 Jumper Settings for 3.5-inch FlashDrives................................................................21
3.3 Mounting the FlashDrive.................................................................................................21
4.0 FlashDrive AT Interface Description................................................................23
4.1 Physical Description........................................................................................................23
4.1.1 Pin Assignments and Pin Type................................................................................24
4.2 Electrical Description......................................................................................................25
4.3 Electrical Specification....................................................................................................27
4.3.1 Absolute Maximum Conditions...............................................................................27
4.3.2 Input Leakage Current...........................................................................................27
4.3.3 Input Characteristics.............................................................................................27
4.3.4 Output Drive Type................................................................................................28
4.3.5 Output Drive Characteristics................................................................................28
4.3.6 Interface/Bus Timing.............................................................................................29
4.3.7 I/O Input (Read) Timing Specification...................................................................29
4.3.8 I/O Output (Write) Timing Specification...............................................................30
5.0 ATA Drive Register Set Definition and Protocol..................................................31
5.1 I/O Primary and Secondary Address Configurations..........................................................31
5.2 ATA Registers..................................................................................................................31
5.2.1 Data Register........................................................................................................31
5.2.2 Error Register........................................................................................................32
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FlashDrive Product Manual
Table of Contents (continued)
5.2.3 Feature Register....................................................................................................32
5.2.4 Sector Count Register.............................................................................................32
5.2.5 Sector Number (LBA 7-0) Register..........................................................................32
5.2.6 Cylinder Low (LBA 15-8) Register..........................................................................32
5.2.7 Cylinder High (LBA 23-16) Register......................................................................32
5.2.8 Drive/Head (LBA 27-24) Register.........................................................................33
5.2.9 Status & Alternate Status Registers.......................................................................34
5.2.10 Device Control Register.......................................................................................34
5.2.11 Drive Address Register........................................................................................35
6.0 ATA Command Description .........................................................................36
6.1 ATA Command Set...........................................................................................................36
6.1.1 Check Power Mode - 98H or E5H...........................................................................38
6.1.2 Execute Drive Diagnostic - 90H..............................................................................38
6.1.3 Erase Sector(s) - C0H.............................................................................................39
6.1.4 Format Track - 50H................................................................................................40
6.1.5 Identify Drive - ECH.............................................................................................40
6.1.5.1 General Configuration..........................................................................42
6.1.5.2 Default Number of Cylinders................................................................42
6.1.5.3 Default Number of Heads.....................................................................42
6.1.5.4 Number of Unformatted Bytes per Track................................................42
6.1.5.5 Number of Unformatted Bytes per Sector...............................................42
6.1.5.6 Default Number of Sectors per Track.....................................................42
6.1.5.7 Number of Sectors per Drive..................................................................42
6.1.5.8 FlashDrive Serial Number...................................................................42
6.1.5.9 Buffer Type..........................................................................................42
6.1.5.10 Buffer Size...........................................................................................42
6.1.5.11 ECC Count............................................................................................42
6.1.5.12 Firmware Revision...............................................................................42
6.1.5.13 Model Number......................................................................................42
6.1.5.14 Read/Write Multiple Sector Count .......................................................42
6.1.5.15 Double Word Support...........................................................................43
6.1.5.16 Capabilities........................................................................................43
6.1.5.17 PIO Data Transfer Cycle Timing Mode..................................................43
6.1.5.18 DMA Data Transfer Cycle Timing Mode................................................43
6.1.5.19 Translation Parameters Valid ..............................................................43
6.1.5.20 Current Number of Cylinders, Heads, Sectors/Track ..............................43
6.1.5.21 Current Capacity .................................................................................43
6.1.5.22 Multiple Sector Setting ........................................................................43
6.1.5.23 Total Sectors Addressable in LBA Mode ................................................43
6.1.6 Idle - 97H or E3H...................................................................................................44
6.1.7 Idle Immediate - 95H or E1H.................................................................................44
6.1.8 Initialize Drive Parameters - 91H.........................................................................45
6.1.9 Read Buffer - E4H.................................................................................................45
6.1.10 Read Multiple - C4H ...........................................................................................46
6.1.11 Read Long Sector - 22H or 23H .............................................................................47
6.1.12 Read Sector(s) - 20H or 21H..................................................................................47
6.1.13 Read Verify Sector(s) - 40H or 41H.......................................................................48
6.1.14 Recalibrate - 1XH................................................................................................48
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FlashDrive Product Manual
Table of Contents (continued)
6.1.15 Request Sense - 03H .............................................................................................49
6.1.16 Seek - 7XH..........................................................................................................50
6.1.17 Set Features - EFH...............................................................................................50
6.1.18 Set Multiple Mode - C6H .....................................................................................52
6.1.19 Set Sleep Mode- 99H or E6H ................................................................................52
6.1.20 Standby - 96H or E2H ..........................................................................................53
6.1.21 Standby Immediate - 94H or E0H .........................................................................53
6.1.22 Translate Sector - 87H .........................................................................................54
6.1.23 Wear Level - F5H ...............................................................................................55
6.1.24 Write Buffer - E8H..............................................................................................55
6.1.25 Write Long Sector - 32H or 33H ............................................................................56
6.1.26 Write Multiple Command - C5H ..........................................................................56
6.1.27 Write Multiple without Erase - CDH ..................................................................57
6.1.28 Write Sector(s) - 30H or 31H................................................................................58
6.1.29 Write Sector(s) without Erase - 38H ....................................................................58
6.1.30 Write Verify Sector(s) - 3CH...............................................................................59
6.2 Error Posting....................................................................................................................60
Ordering Information and Technical Support.............................................................61
Ordering Information..............................................................................................................63
SanDisk FlashDrive......................................................................................................63
Mounting Hardware.......................................................................................................63
Technical Support Services......................................................................................................64
Direct SanDisk Technical Support..................................................................................64
SanDisk Worldwide Web Site........................................................................................64
SanDisk Sales Offices.......................................................................................65
SanDisk Worldwide Sales Offices...........................................................................................67
Limited Warranty ............................................................................................68
FlashDrive Product Manual © 1999 SANDISK CORPORATION 5
FlashDrive Product Manual
FlashDrive Product Manual © 1999 SANDISK CORPORATION6
1.0 Introduction
FlashDrive Product Manual
Designed to replace traditional rotating disk
drives, SanDisk FlashDrives are embedded solidstate data storage systems for mobile computing
and the industrial work place. The 1.8-inch
FlashDrives (model SDIB) are compatible with
1.8-inch form factor hard disk drives. The 2.5- and
3.5-inch FlashDrives (models SD25B and SD35B)
are compatible with 2.5- and 3.5-inch form factor
disk drives. These FlashDrives, and all SanDisk
FlashDrives, feature an extremely light weight,
low profile form factor with 4 to 440 megabytes
(MB) of storage capacity.
SanDisk FlashDrives fit into standard disk drive
bays, use the industry standard IDE interface and
connect to the host system via the same ribbon
cable used to connect standard disk drives. No
additional device drives are required.
FlashDrives consist of an IDE compatible flash
memory controller and flash memory chip(s). See
Figure 1-1 for a system block diagram of these IDE
FlashDrive products.
FlashDrive Product Manual © 1999 SANDISK CORPORATION 7
Figure 1-1 FlashDrive Block Diagram
FlashDrive Product Manual
1.1 Scope
This manual describes the key features and
specifications of SanDisk FlashDrives, plus the
information required by an engineer to interface
the FlashDrives to a host system.
1.2 FlashDrive Product Models
FlashDrives are available in a variety of
capacities as shown in the following table. All
FlashDrives are shipped formatted with a DOS
5.0 file structure.
Table 1-1 FlashDrive Model Numbers and Capacities
Standard
Model
Number
SDIB-4 SDIBI-4 1.8-inch 4.03 MB
SDIB-10 SDIBI-10 1.8-inch 10.48 MB
SDIB-20 SDIBI-20 1.8-inch 20.97 MB
SDIB-40 SDIBI-40 1.8-inch 41.94 MB
SDIB-80 SDIBI-80 1.8-inch 83.88 MB
SDIB-140 SDIBI-140 1.8-inch 140.77 MB
SDIB-220 SDIBI-220 1.8-inch 220.2 MB
SD25B-20 SD25BI-20 2.5-inch 20.0 MB
SD25B-40 SD25BI-40 2.5-inch 40.1 MB
SD25B-60 SD25BI-60 2.5-inch 60.1 MB
SD25B-80 SD25BI-80 2.5-inch 80.2 MB
SD25B-100 SD25BI-100 2.5-inch 100.0 MB
SD25B-220 SD25BI-220 2.5-inch 220.2 MB
SD25B-350 SD25BI-350 2.5-inch 350.6 MB
SD25B-440 SD25BI-440 2.5-inch 440.2 MB
SD35B-20 SD35BI-20 3.5-inch 20.0 MB
SD35B-40 SD35BI-40 3.5-inch 40.1 MB
SD35B-60 SD35BI-60 3.5-inch 60.1 MB
SD35B-80 SD35BI-80 3.5-inch 80.2 MB
SD35B-100 SD35BI-100 3.5-inch 100.0 MB
SD35B-220 SD35BI-220 3.5-inch 220.2 MB
SD35B-350 SD35BI-350 3.5-inch 350.6 MB
SD35B-440 SD35BI-440 3.5-inch 440.2 MB
Industrial
Model
Number
Form Factor Formatted
Capacity
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FlashDrive Product Manual
1.3 System Features
• Up to 440 MB of solid-state storage
• Fully MS-DOS compatible
• Very low power
• Very rugged
• Very low weight
• Noiseless
• Very high performance
• Programmable power versus performance
• 3.3V or 5V interface
• Block size of 512 bytes
• Supports automatic power management as
well as ATA power down commands and
sleep mode over the interface
• Automatic error correction and retry
capabilities
• Sophisticated defect management system
1.4 Related Documentation
1.5.1 Flash Technology Independence
The sector size of the FlashDrives is the same as
in a magnetic disk drive: 512 bytes. To write or
read a sector (or multiple sectors), the host
computer software simply issues a write or read
command. The command contains the number of
sectors to write/read and the address to
write/read. The host software then waits for the
command to complete. The host software does not
get involved in the details of how the flash
memory is erased, programmed or read. This is
extremely important as flash devices are expected
to get more and more complex in the future. The
intelligent IDE compatible interface used by the
FlashDrives will not need to change to support
new flash devices in the future and therefore the
host software will not need to change. Systems
that support the FlashDrives today will be able
to access future SanDisk IDE compatible products
built with new flash technology without having
to update or change host software.
American National Standard X3T9.2 AT
Attachment Interface Document
This document can be ordered from
Global Engineering Documents by calling
1-800-854-7179.
1.5 Functional Description
The SanDisk FlashDrives contain a high level,
intelligent subsystem as shown in the block
diagram, Figure 1-1. This intelligent (microprocessor) subsystem provides many capabilities.
These capabilities include:
1. Standard ATA register and command set
(same as found on most magnetic disk
drives).
2. Host independence from details of erasing
and programming flash memory.
3. Sophisticated system for managing
defects (analogous to systems found in
magnetic disk drives).
4. Sophisticated system for error recovery
including a powerful error correction code
(ECC).
1.5.2 Defect and Error Management
The FlashDrives contain a sophisticated defect
and error management system. This system is
analogous to the systems found in all magnetic
disk drives and in many cases offers enhancement.
For instance, disk drives do not typically perform
a read after write to confirm the data is written
correctly because of the performance penalty that
would be incurred. The FlashDrives do a read
after write under margin conditions to verify that
the data is written correctly (except in the case of
a Write without Erase command). In the rare case
that a bit is found to be defective the FlashDrives
can replace this bad bit with a spare bit. If
necessary the FlashDrives can even replace the
entire sector with a spare sector. This is
completely transparent to the host and does not
consume any user data space.
The FlashDrive specification for soft error rate is
much better than the magnetic disk drive
specification. In the extremely rare case that a
read error does occur, the FlashDrives have
innovative algorithms to recover the data. This is
similar to using retries on a disk drive but much
more sophisticated. The last line of defense is to
employ a powerful ECC to correct the data. If ECC
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FlashDrive Product Manual
is used to recover data, defective bits are replaced
with spare bits to ensure they do not cause future
problems.
These defect and error management systems
coupled with the solid-state construction give the
FlashDrives unparalleled reliability.
1.5.3 Endurance
Even very heavy use of the FlashDrive in a
computer system will use only a fraction of the
total endurance over the computer’s five year
lifetime. For instance, it would take over 34 years
to wear out an area on the drive on which a file of
any size (from 512 bytes to drive capacity) was
rewritten 3 times per hour, 8 hours a day, 365 days
per year.
With typical applications (PIM software, word
processing, spreadsheets, data collection, etc.),
the 300,000 endurance limit is not of any practical
concern to the vast majority of users.
1.5.5 Automatic Sleep Mode
A unique feature of the SanDisk FlashDrives is
automatic entrance and exit from sleep mode.
Upon completion of a command, the FlashDrives
will enter the sleep mode to conserve power if no
further commands are received within 5 msec. The
host does not have to take any action for this to
occur. In most systems the FlashDrives are in sleep
mode except when the host is accessing it; thus,
conserving power. Note that the delay from
command completion to entering sleep mode can be
adjusted.
When the host is ready to access the drive and it
is in sleep mode, any command issued to the drive
will cause it to exit sleep and respond. The host
does not have to follow the ATA protocol of
issuing a reset first. It may do this if desired, but
it is not needed. By not issuing the reset,
performance is improved through the reduction of
overhead but this must be done only for the
SanDisk products as other IDE products may not
have this feature.
1.5.4 Wear Leveling
The FlashDrives do not require or perform a Wear
Level operation. The command is supported as a
NOP operation to maintain backward
compatibility with existing software utilities.
1.5.6 Power Supply Requirements
This is a dual voltage product which means it
will operate at a voltage range of 3.30 volts ± 5%
or 5.00 volts ± 10% (± 5% for industrial versions).
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FlashDrive Product Manual
2.0 FlashDrive Product Specifications
For all the following specifications, values are
defined at ambient temperature and nominal
supply voltage unless otherwise stated.
2.1 FlashDrive System Environmental
Specifications
Standard FlashDrive Industrial FlashDrive
Temperature Operating:
Non-Operating:
Humidity Operating:
Non-Operating:
Acoustic Noise: 0 dB 0 dB
Vibration Operating:
Non-Operating:
Shock Operating:
Non-Operating:
Altitude
(relative to
sea level)
Operating:
Non-Operating:
0° C to 60° C
-25° C to 85° C
8% to 95%, non-condensing
8% to 95%, non-condensing
15 G peak to peak max.
15 G peak to peak max.
1,000 G max.
1,000 G max.
80,000 feet max.
80,000 feet max.
-40˚ C to 85˚ C
-50˚ C to 100˚ C
8% to 95%, non-condensing
8% to 95%, non-condensing
15 G peak to peak max.
15 G peak to peak max.
1,000 G max.
1,000 G max.
80,000 feet max.
80,000 feet max.
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2.2 System Power Requirements
Standard 1.8" FlashDrive
(Model SDIB)
DC Input Voltage (VCC)
100 mV max. ripple(p-p)
+5 V Currents
(maximum Average value)
See Notes.
Read/Write Peak
DC Input Voltage (VCC)
100 mV max. ripple(p-p)
+5 V Currents
(maximum Average value)
See Notes.
Read/Write Peak
Note 1. All values quoted are typical at ambient temperature and nominal supply voltage unless otherwise stated.
Note 2. Sleep mode current is specified under the condition that all drive inputs are at static CMOS levels and in a
“Not Busy” operating state.
Note 3. The currents specified show the complete range of programmability in the FlashDrive memory drive. A
tradeoff between performance and maximum current used can be done using the Set Features command.
The FlashDrive defaults to the fastest speed and highest current. See the Set Features command for more
details.
Sleep:
Reading:
Writing:
Sleep:
Reading:
Writing:
3.3 V ± 5% 5 V ± 10% 3.3 V ± 5% 5 V ± 5%
200 µA
(Slow - Fast)
32 mA - 45 mA
32 mA - 60 mA
150 mA/50µs
Standard 2.5" and 3.5"
FlashDrive
(Models SD25B and SD35B)
3.3 V ± 5% 5 V ± 10% 3.3 V ± 5% 5 V ± 5%
200 µA
(Slow - Fast)
32 mA - 80 mA
32 mA - 80 mA
150 mA/50µs
500 µA
(Slow - Fast)
46 mA - 75 mA
46 mA - 90 mA
150 mA/50µs
500 µA
(Slow - Fast)
46 mA - 120 mA
46 mA - 120 mA
150 mA/50µs
Industrial 1.8" FlashDrive
(Model SDIBI)
200 µA
(Slow - Fast)
32 mA - 45 mA
32 mA - 60 mA
150 mA/50µs
Industrial 2.5" and 3.5"
FlashDrive
(Models SD25BI
and SD35BI)
200 µA
(Slow - Fast)
32 mA - 80 mA
32 mA - 80 mA
150 mA/50µs
500 µA
(Slow - Fast)
46 mA - 75 mA
46 mA - 90 mA
150 mA/50µs
500 µA
(Slow - Fast)
46 mA - 120 mA
46 mA - 120 mA
150 mA/50µs
2.3 System Performance
All performance timings assume the FlashDrive
controller is in the default (i.e., fastest) mode at
Vcc = 5.0 volts.
Start Up Times
Sleep to write:
Sleep to read:
Reset to ready:
Active to Sleep Delay Programmable
Data Transfer Rate To/From Flash 4.0 MBytes/sec burst
Data Transfer Rate To/From Host 6.0 MBytes/sec burst
Controller Overhead Command to DRQ 1.25 msec maximum
Note: The Sleep to Write and Sleep to Read times are the times it takes the FlashDrive to exit sleep mode when
any command is issued by the host to when the drive is reading or writing. The FlashDrive does not require a
reset to exit sleep mode. See section 1.5.5.
2.5 msec maximum
2.0 msec maximum
50 msec typical
400 msec maximum
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2.4 System Reliability and Maintenance
MTBF (@ 25°C) >1,000,000 hours
Preventive Maintenance None
Data Reliability
Endurance Standard FlashDrives 300,000 erase/program cycles per logical
Endurance Industrial FlashDrives 100,000 erase/program cycles per logical
<1 non-recoverable error in 1014 bits read
sector
sector
2.5 Physical Specifications
See Figures 2-1 through 2-5 for additional
information.
1.8" FlashDrive 2.5" FlashDrive 3.5" FlashDrive
Length: 76.2 mm ± 0.20 mm (3 ±.008 in.) 100.2 mm ± 0.51 mm 150 mm maximum
Width: 50.8 mm ± 0.20 mm (2 ± .008 in.) 69.85 mm ± 0.51 mm 101.6 mm ± 0.2 mm
Thickness: 9.6 mm maximum (.378 in.) 6.0 mm ± 0.51 mm 15 mm maximum
Weight: 45 g (1.6 oz) typical 120 g maximum 240 g maximum
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FlashDrive Product Manual
2.6 Capacity Specifications
The table below shows the specific capacity for
the various models and the default number of
heads, sectors per track and cylinders.
Model
Number
SDIB/SDIBI-4 1.8-inch 4,030,464 bytes 7,872 2 32 123
SDIB/SDIBI-10 1.8-inch 10,485,760 bytes 20,480 2 32 320
SDIB/SDIBI-20 1.8-inch 20,971,520 bytes 40,960 2 32 640
SDIB/SDIBI-40 1.8-inch 41,943,040 bytes 81,920 4 32 640
SDIB/SDIBI-80 1.8-inch 83,886,080 bytes 163,840 8 32 640
SDIB/SDIBI-140 1.8-inch 140,771,328 bytes 274,944 12 32 716
SDIB/SDIBI-220 1.8-inch 220,200,960 bytes 430,080 16 32 840
SD25B/SD25BI-20 2.5-inch 20,054,016 bytes 39,168 2 32 612
SD25B/SD25BI-40 2.5-inch 40,108,032 bytes 78,336 4 32 612
SD25B/SD25BI-60 2.5-inch 60,162,048 bytes 117,504 6 32 612
SD25B/SD25BI-80 2.5-inch 80,216,064 bytes 156,672 8 32 612
SD25B/SD25BI-100 2.5-inch 100,007,936 bytes 195,328 8 32 763
SD25B/SD25BI-220 2.5-inch 220,200,960 bytes 430,080 16 32 840
SD25B/SD25BI-350 2.5-inch 350,687,232 bytes 684,936 12 63 906
SD25B/SD25BI-440 2.5-inch 440,229,888 bytes 859,824 16 63 853
SD35B/SD35BI-20 3.5-inch 20,054,016 bytes 39,168 2 32 612
SD35B/SD35BI-40 3.5-inch 40,108,032 bytes 78,336 4 32 612
SD35B/SD35BI-60 3.5-inch 60,162,048 bytes 117,504 6 32 612
SD35B/SD35BI-80 3.5-inch 80,216,064 bytes 156,672 8 32 612
SD35B/SD35BI-100 3.5-inch 100,007,936 bytes 195,328 8 32 763
SD35B/SD35BI-220 3.5-inch 220,200,960 bytes 430,080 16 32 840
SD25B/SD25BI-350 3.5-inch 350,687,232 bytes 684,936 12 63 906
SD25B/SD25BI-440 3.5-inch 440,229,888 bytes 859,824 16 63 853
Form
Factor
Capacity
(formatted)
Sectors/Card
(Max LBA+1)
No. of
Heads
No. of
Sectors/Track
No. of
Cylinders
FlashDrive Product Manual © 1999 SANDISK CORPORATION14
FlashDrive Product Manual
Figure 2-1 1.8-Inch FlashDrive System Dimensions
FlashDrive Product Manual © 1999 SANDISK CORPORATION 15
FlashDrive Product Manual
Figure 2-2 2.5-inch FlashDrive
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FlashDrive Product Manual
Figure 2-3 2.5-inch FlashDrive Dimensions
FlashDrive Product Manual © 1999 SANDISK CORPORATION 17
FlashDrive Product Manual
Figure 2-4 3.5-inch FlashDrive
FlashDrive Product Manual © 1999 SANDISK CORPORATION18
2.43 in.
61.72mm
5.9 in. max.
150mm max.
1.75 in.
44.45mm
FlashDrive Product Manual
3.63 in.
92.2mm
4.0 in. ± .0078
101.6mm ± 0.2
.250 in.
6.35mm
.630 in.
16.0mm
2.375 in.
60.3mm
1.75 in.
44.45mm
Figure 2-5 3.5-inch FlashDrive Dimensions
.59 in. max.
15mm max.
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FlashDrive Product Manual
3.0 Installation and Mounting
3.1 Preparing to Install the FlashDrive
Follow the procedure below to prepare for the
FlashDrive installation:
1. If replacing an existing hard disk drive,
make sure that all data on that drive has
been properly backed up.
2. Turn off the power to the host computer
system and unplug the power supply cord.
The host system’s power must be off during
the entire installation procedure.
3. Using a grounding strap, make sure that
you are properly grounded. You must be
grounded during the entire installation
procedure and when handling the
FlashDrive.
4. Remove the host computer system’s cover.
Caution: Be sure to check with the host
system’s user’s manual and the terms and
conditions of the system’s warranty before
removing the cover. Removing the cover of
a laptop computer may be difficult and
could void the system’s warranty.
5. If replacing the computer system’s existing
hard drive, remove the hard drive.
If the FlashDrive is being installed as a single
drive, go to section 3.3 to finish the installation
process. If the FlashDrive is being installed in a
two drive configuration, follow the steps in section
3.2 below to set the jumpers and then go to section
3.3 to finish the installation.
3.2.1 Jumper Settings for 1.8- and 2.5-inch
FlashDrives
If the FlashDrive is being installed as the second,
or Slave drive, in a two drive configuration, pin B
or pin C must be grounded (see the Figures 3-1 and
3-2). Pins B and C are pulled-up input pins that
are shorted together internally (Pins A and D are
ground.) These pins are used to configure the
FlashDrive as a slave device. When either pin B
or pin C is grounded by the user, either using a
shunt jumper or through a ground on the host
motherboard if a 50 pin connector is used, the
FlashDrive is configured as a Slave device.
If both pins B and C remain open, the FlashDrive
is configured as a master in a master/slave
configuration or as the only drive in a single drive
system.
Master or Single Drive
A B
C D
Slave
A B
C D
Pin 1
Pin 1
3.2 Installing the FlashDrive in a Two
Drive Configuration
If the FlashDrive is being installed in a system
that has either a hard disk or another
FlashDrive already installed, a jumper may need
to be installed for the FlashDrive(s) to operate
properly.
Figure 3-1
1.8-inch FlashDrive Master/Slave
Configuration Pins
FlashDrive Product Manual © 1999 SANDISK CORPORATION20
FlashDrive Product Manual
D
Master or
Single Drive
ABC
D
Slave
ABC
Pin 1
Pin 1
Figure 3-2
2-5-inch FlashDrive Master/Slave
Configuration PIns
3.2.2 Jumper Settings for 3.5-inch FlashDrives
The jumper settings for the 3.5-inch FlashDrive
are shown on the FlashDrive’s label. The
master/slave configuration pins are the eight pins
between the four pin power connector and the 40
pin interface connector. The figure below shows
how the jumpers should be set for either master or
slave configuration on the 3.5-inch FlashDrive.
Figure 3-3
3.5-inch FlashDrive Configuration Pins
3.3 Mounting the FlashDrive
Follow to the steps below to mount the
FlashDrive in your computer system:
four pin power connector must also be
connected on the 3.5-inch FlashDrive.
2. Mount the FlashDrive into the host
system. The FlashDrive can be mounted in
any orientation from the top, bottom or
side. The 1.8-inch FlashDrives use four
M1.6 screws in the corner mounting holes in
the PC board. The 2.5-inch FlashDrive
uses four M3 screws and the 3.5-inch
FlashDrive uses four 6-32 screws. See
Figures 2-1 through 2-5 and see the
Ordering Information section at the end of
this manual. Ensure that the cables are
not crimped or strained. Make sure that
all mounting screws are hand tightened
securely. For the 3.5-inch FlashDrive,
mounting screws must not extend more than
.25 inch into the frame. For the 2.5-inch
FlashDrive, mounting screws must not
extend more than 3 mm into the frame.
3. Perform the CMOS Setup. If the
computer’s BIOS has an auto-detect
function, use this option, otherwise,
determine if your system has a user
definable “hard drive types” selection in
the CMOS RAM. If your system has this
selection, continue with the CMOS setup.
If your system does not have this
selection, call SanDisk Applications
Engineering at (408) 542-0400.
Refer to the following table for
information required to set the user
definable “hard disk type” selection in
your system’s CMOS RAM to the
FlashDrive configuration. The table lists
the number of heads, sectors per track and
cylinders emulated by the FlashDrives.
After entering the appropriate
information, save the new CMOS setup by
rebooting your system.
1. Connect the FlashDrive to the host
system. If the host system’s cable
connector is not keyed, make sure that pin
1 from the host computer cable is connected
to pin 1 of the FlashDrive. Pin 1 on both
connectors has a square solder pad. If the
FlashDrive is being added to the system
as a slave drive, connect the daisychained connector to the FlashDrive. The
FlashDrive Product Manual © 1999 SANDISK CORPORATION 21
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