Memtech AT2515 User Manual

AT2515 2.5” Bulldog

2.5” IDE Solid State Flash Drive
User Guide

80-03-00036

Revision 1.1

April 2006

Memtech SSD Corporation

2107 N. First Street, Suite 415

San Jose, CA 95131

[phone]
[phone]

www.memtech.com

Table of Contents

1. HIGHLIGHTS..........................................................................................................3

2. INTRODUCTION ....................................................................................................3

3. INSTALLATION......................................................................................................4

3.1 PROCEDURE........................................................................................................4

3.2 JUMPERS ............................................................................................................6

3.3 IDE INTERFACE ...................................................................................................8

4. OPERATION.........................................................................................................10

4.1 ECC ..................................................................................................................10

4.2 WEAR OUT........................................................................................................10

4.3 POWER.............................................................................................................11

5. MAINTENANCE ...................................................................................................12

6. SPECIFICATIONS................................................................................................13

6.1 INTERFACE........................................................................................................13

6.2 PERFORMANCE*................................................................................................13

6.3 ENVIRONMENTAL ...............................................................................................13

6.4 POWER REQUIREMENTS.....................................................................................13

6.5 M

ECHANICAL.....................................................................................................13

7. APPENDIX............................................................................................................14

7.1

7.2 ATA

CONTACT INFORMATION......................................................................................14

SPECIFICATION INFORMATION ......................................................................14

7.3 LIMITED LIFETIME WARRANTY.............................................................................14

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1. HIGHLIGHTS

• 128Mbyte to 8 Gbytes uncompressed capacity

o

• Full -40

C to +85oC operating temperature range

• 5 volt, low power operation

• Completely solid state - no moving parts and no batteries

• Extremely Rugged - 1000G operating shock, 15G operating vibration

• Low profile 2.5” drive form factor only 9mm tall

• Standard a 44-pin, 2mm IDE interface

• Transfers with PIO Mode 4 and DMA Mode 2 support

• 72-bit Reed-Solomon ECC for exceptional data reliability

• Power hold-up circuit

• 0.3 millisecond access time

• 6 Mbytes/second sustained Read throughput

• 6 Mbytes/second sustained Write throughput

• Pending CE and CSA Safety Compliance

2. INTRODUCTION

The AT2515 is the low cost member of the Bulldog family of drives available today. With a
capacity of 8 Gbytes in a standard 2.5” drive form factor, it delivers exceptional value for its
features. It is completely solid state, with no moving parts. This accounts for the unit’s
exceptional ruggedness and wide operating temperature range.

The AT2515 employs sector erasable NAND EEPROMs (Flash) to deliver up to 8 Gbytes of
uncompressed, non-volatile solid state storage in an extremely small, rugged form factor.
Sustained host data throughput is 6 Mbytes per seconds for reads and 6 Mbytes/second for
writes. The drive supports up to PIO Mode-4 and DMA Mode-2 IDE bus access. It is 100%
IDE compatible and requires no special drivers to operate. It is essentially a drop in
replacement for standard rotating media.

The IDE interface is implemented using an application specific IDE Flash controller with an
integrated 72-bit Reed-Solomon error detection and on-the-fly correction mechanism that
enhance data reliability. The ECC circuitry, in conjunction with the controller’s remapping
algorithms, makes for a virtually bulletproof medium for data retention.

The drive is available in a number of standard capacities ranging from 128 Mbytes to 8
Gbytes. Please contact the factory with your capacity requirements. Disk compression
utilities may be used to effectively double the usable capacity of the drive.

Each drive is fully tested under environmental and voltage extremes, to guarantee data
integrity in even the harshest conditions.

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3. INSTALLATION

3.1 PROCEDURE

3.1.1 ESD PRECAUTIONS
Static electricity kills... electronics! Before handling the AT2515, please observe the following

precautions to avoid ESD damage to the unit:

• Keep the drive in its shielded bag until ready to install.

• Ground yourself by touching a grounded chassis frame of the computer, or use a grounded

wrist strap before and during the installation process.

• Do not touch the exposed drive electronics or connectors. Always handle the drive by the

edges or mounting rails.

3.1.2 CONFIGURATION
Configure the drive using the jumper diagrams given in Section 3.2. The drive is shipped

configured for a single drive system or as the master in a two-drive system. Change the
configuration as required. Never attempt to change the jumpers while the drive is plugged in
or power is applied.

3.1.3 CONNECTOR
The drive may be interfaced directly to a standard 2.5” 2mm IDE socket connector or a

standard 2mm, 44-pin IDE ribbon cable. A separate power cable is not required since the
2mm socket or ribbon cable connector supplies both signals and power. See drawing below
for pin 1 location. Care should be taken when installing the AT2515 into the system, as
misalignment can permanently damage the drive interface connector or electronics.

Figure 1 - Drive Connector

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3.1.4 MOUNTING
The AT2515 may be mounted in any orientation. A total of eight bottom and eight side

mounting holes are available for installation. The mounting holes require M3 screws with a
maximum depth of 5 mm.

The diagram given below is valid for all capacities of the AT2515 drive. The outline
dimensions are 2.75” (69.85 mm) wide, 3.94” (100.2mm) long, and 0.315” (8.00mm) tall.
Please refer to the following drawing for dimensions and mounting hole locations

Figure 2 - Mechanical Dimensions

3.1.5 COMPUTER SETUP
To be recognized by the computer, the drive translation information must typically be entered

into the System Setup or CMOS Setup utility. For non-PC compatible computers, this may not
apply. The AT2515 supports automatic detection and configuration if offered by the BIOS. If
the drive configuration must be manually entered, select drive type USER and use the table
below to determine proper setup parameters. Automatic CHS translation and LBA mode is
supported. Note that a MB is equal to 1024*1024 bytes.

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Drive Type

AT2515-128 128 MB 977 8 32 122 MB
AT2515-256 256 MB 980 16 32 245 MB
AT2515-384 384 MB 745 16 63 366 MB
AT2515-512 512 MB 993 16 63 489 MB
AT2515-768 768 MB 1489 16 63 732 MB
AT2515-1024 1024MB 1986 16 63 977 MB
AT2515-2048 2048MB 3969 16 63 1953 MB
AT2515-3072 3072MB 5953 16 63 2930 MB
AT2515-4096 4096MB 7937 16 63 3906.5 MB
AT2515-6144 6144MB 11628 16 63 5723.2 MB
AT2515-8192 8192MB 15504 16 63 7630.9 MB

3.1.6 PARTITION
The drive must be partitioned using the system’s FDISK utility. For operating systems other

than DOS, please refer to your OS operating guides. Note that changing the partition
information will erase all data currently on the drive. Refer to your OS manual for information
regarding partitioning a hard disk.

3.1.7 FORMAT

Physical
Capacity Cylinders

Heads

Sectors

Available

Capacity

The AT2515 is low-level formatted at the factory, which establishes the 512-byte sector size.
A high-level format is required after the partition has been established on the drive. Refer to
your OS manual for information regarding hard disk drive format procedures.

3.2 JUMPERS

The following diagram illustrates the location of the drive configuration jumpers on the AT2515.
The jumpers control the drive selection - master, slave or cable select. The jumper required is
a 2-pin vertical header on 2mm centers.

2.5” Bulldog User Guide April 10, 2006 page 6 of 14

Figure 3 - Configuration Jumpers

3.2.1 MASTER/SLAVE

The master/slave jumper allows the drive to be configured as either master or slave.
Installing the jumper allows the drive to be configured as a slave. With the jumper off, the drive

is configured as a master.

3.2.2 CABLE SELECT

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The Cable Select jumper allows the drive to be configured as a master or slave through the
IDE cable. A maximum of two drives may only be connected to one standard IDE cable.
Connecting the drive to the end of the cable configures the drive to be a master (DOS drive C:)
and connecting the drive to the middle connector of the cable configures the drive for a slave
(DOS drive D:).

With the Cable Select jumper off, the drive to uses the master/slave jumper for drive
configuration.

3.2.3 FACTORY DEFAULT

The factory default configuration is as the master drive with no jumpers installed.

3.3 IDE INTERFACE

The AT2515 uses a 44-pin 2mm connector mounted on the PCB to create both a power and
signal connection to the host. Maximum cable length is 18 inches. Recommended cable
length is 12 inches or less, especially if advanced PIO transfer modes are used.

3.3.1 IDE CONNECTOR ADAPTER
An adapter or interposer for converting the 2mm IDE connector to a standard 40-pin 0.100”

IDE connector is available from the factory. Order part number 153264-002. The adapter
converts the drive 44-pin 2mm connector to a standard 40-pin 0.100” connector. Power
arrives via a 4-pin Amp power header (EI series) identical to the connector used to supply
power to 3.5-inch floppy drives. To convert the 4-pin Amp power connector to a standard 4­pin AT power connector, an ATA power cable adapter, part number 153273-002, is included.

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Figure 4 - IDE Adapter Board

3.3.2 IDE CONNECTOR PINOUT

Figure 5 - IDE Connector

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The following table depicts the 44-pin, 2mm-signal cable interface pinout.

PIN SIGNAL PIN SIGNAL

1 RESET- 2 GND
3 DATA7 4 DATA8
5 DATA6 6 DATA9
7 DATA5 8 DATA10

9 DATA4 10 DATA11
11 DATA3 12 DATA12
13 DATA2 14 DATA13
15 DATA1 16 DATA14
17 DATA0 18 DATA15
19 GND 20 KEY (NO PIN)
21 DMARQ 22 GND
23 IOW- 24 GND
25 IOR- 26 GND
27 IOCHRDY 28 CSEL
29 DMACK- 30 GND
31 IRQ 32 IOCS16­33 ADDR1 34 PDIAG­35 ADDR0 36 ADDR2
37 CS0- 38 CS1­39 DASP- 40 GND
41 +5VOLTS 42 +5VOLTS
43 GND 44 RESERVED

4. OPERATION

4.1 ECC

The IDE controller utilizes a 72-bit Reed-Solomon Error Detection Code (EDC) and Error
Correction Code (ECC), which provides the following error immunity for each 512-byte block of
data:

1. Corrects up to three random 12-bit symbol errors.

2. Corrects single bursts up to 25 bits.

4.2 WEAR OUT

The time to failure can be logically calculated in hours using the following formula.
# Flash Chips * # Blocks *Re-programming Cycles * Area Rate

Wear Out = -----------------------------------------------------------------------------------­ Average Block Programming Rate per hour (Block = 16Kbyte)

Note: The program area is the area that is not changed once it has been programmed. The

remainder of the drive is thus considered “Reprogrammable”. In the case where 64
Kbytes (128 sectors) are written every minute into an area occupying 30% of a 512 MB
disk (1 Gbit x 4 chips), the MTBF is calculated as shown below:

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Wear Out = (4*8192*100,000*0.3) / [(64/16) *60]
= 4.1 million hours (465 years)

4.3 POWER

4.3.1 POWER DOWN
The AT2515 is shipped with Memtech’s proprietary Kicker™ hold-up circuit. The Kicker™

provides enough residual power for the drive to complete a write sequence, thus avoiding data
corruption.

Still, it is recommended that power not be removed from any mass storage device while a
write sequence is in progress. This is especially true when disk-caching programs are being
used. Though the Kicker™ protects against data corruption and media errors, it cannot
prevent OS or file errors from occurring. These types of errors arise when the OS breaks a
large transfer into many smaller ones, and only part of the transfer arrives from the host.

4.3.2 POWER SUPPLY
The AT2515 voltage requirement is specified at +5 volts, +/- 5%. Operation outside of these

limits is not guaranteed. Note that the drive will “operate” below this voltage, but reliability
issues such as uncorrectable errors or invalid data reads may occur. An on board voltage
monitor will inhibit writes when the on-board supply voltage falls below 3 volts, thus preserving
data integrity on the drive.

4.3.3 POWER ROUTING
Bad power can lead to bad data. To avoid “glitches” or noise on the Vcc and ground lines,

power in the system should be routed so that all peripherals are sourced from the power
supply in a star configuration, as opposed to routing a single continuous supply line to each
device in the system. Routing power in the star configuration, as is done on most desktop
PCs, will minimize the effect on one device’s current draw on another device. This is key to
maintaining data integrity on the AT2515. See diagrams below.

Star Topology Daisy Chain - Do Not Use

Power Supply

Main Board

Hard Disk

Floppy

Main Board

Power Supply

Floppy

Hard Disk

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5. MAINTENANCE

No maintenance is required during the normal use of this drive.
If data is to be archived for long periods of time (> 10 years), it is recommended that the data

on the drive be refreshed every 5 to 10 years. The manufacturer of the NAND E
devices will only guarantee data integrity for a period of 10 years. Programs such as Norton
Speedisk

©

, which reallocates all sectors on the drive, or Microsoft® Scandisk, which writes and

reads every sector on the disk during its surface test, achieve this end very well.

2

PROM

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6. SPECIFICATIONS

6.1 INTERFACE

IDE Compatibility X3T10 2008D, Rev. 7b
IDE Drive Number Drive 0 or 1
Physical Capacity 128 Mbytes to 8 Gbytes
Physical Sector Size 512 bytes

6.2 PERFORMANCE*

Average Access 0.3 ms
Track/Track Access 0.3 ms
Sequential Read 6 Mbytes/sec sustained
Sequential Write 6 Mbytes/sec sustained
Random Read 6 Mbytes/sec sustained
Random Write 6 Mbytes/sec sustained

6.3 ENVIRONMENTAL

Commercial Temperature Range

Operating 0
Storage -55

Extended Temperature Range

Operating -20
Storage -55

Industrial Temperature Range

Operating -40

Storage -55
Shock - operating 1500G, 0.5mS, Operating
Vibration - operating 15G Random
Airflow None required
Humidity 5% to 95% NC

6.4 POWER REQUIREMENTS

Voltage 5V +/- 5%
Current AT2515-1024

Idle 1.5 mA

Read 35 mA

Write 45 mA

6.5 MECHANICAL

o

to 70o C

o

C to 125o C

o

C to 75oC

o

C to 125o C

o

to 85o C

o

to 125o C

Length 3.94 inches (102.00 mm)
Width 2.75 inches (69.85 mm)
Height .35 inches (9.00 mm)
Cable Interface 44-pin, 2mm centers
Max. Cable Length 18 inches (457 mm)
Rec. Cable Length 12 inches (305 mm)
Weight (2048 Mbytes) 2.9 oz (208 g)

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7. APPENDIX

7.1 CONTACT INFORMATION

For Technical Support or Warranty Repair information, please contact Memtech at:
Memtech SSD Corporation

2107 N. First Street, Suite 415
San Jose, CA 95131
phone: [phone] or [phone]
fax: [phone]

7.2 ATA SPECIFICATION INFORMATION

Information regarding the ATA-3 specification may be obtained from the following locations:
AT-Attachment Document Distribution

Global Engineering
15 Inverness Way East
Englewood, Co. 80112-5704
Phone: [phone] or [phone]
Fax: [phone]

ATA Anonymous FTP Site
http://fission.dt.wdc.com
ATA3 directory is: “/pub/standards/ata/ata-3”

7.3 LIMITED LIFETIME WARRANTY

Memtech warrants your AT2515 against defects in material and workmanship for the life of the
drive. The warranty is void in the case of misuse, accident, alteration, improper installation,
misapplication or the result of unauthorized service or repair.

The implied warranties of merchantability and fitness for a particular purpose, and all other
warranties, expressed or implied, except as set forth in this warranty, shall not apply to the
products delivered.

In no event shall Memtech be liable for any lost profits, lost savings or other incidental or
consequential damages arising out of the use of, or inability to use, this product.

BEFORE RETURNING PRODUCT, A RETURN MATERIAL AUTHORIZATION (RMA) MUST
BE OBTAINED FROM MEMTECH.

Product shall be returned to Memtech with shipping prepaid. If the product fails to conform
and warranty repair is necessary, Memtech will reimburse customer for the transportation
charges incurred.

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