AT3525 User Guide
Contents
1. 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 3 2 4 WRITE PROTECT Master Slave Cable Select Write Protect Ee EE The Write Protect jumper prevents data from being written to the drive 3 5 Rocket User Guide April 22 2004 page 7 of 12 3 2 5 FACTORY DEFAULT The factory default configuration is master No jumpers are installed 3 3 IDE INTERFACE The AT3525 uses a unitized signal and power connector 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 PINOUT The signal to pin assignment for the 40 pin IDE interface connector is listed in the following table IOCHRDY IRQ ADDR1 ADDRO DASP GND PIN C5 Ce SCH 17 e KEY NO PIN 3 5 Rocket User Guide April 22 2004 page 8 of 12 4 OPERATION 4 1 ECC The IDE controller utilizes a 72 bit Reed Solomon Error Detection Code EDC and Er2. 3 5 Rocket User Guide April 22 2004 40 to 85 55 to 125 C 1000G Operating target 15G Random target None required 5 to 95 NC target DV 5 AT3525 3072 45 mA 90 mA 112 mA 5 56 inches 141 22 mm 4 00 inches 101 60 mm 0 47 inches 12 01 mm 40 pin 0 1in 18 inches 457 mm 12 inches 305 mm 7 3 oz 208 g page 11 of 12 7 APPENDIX 7 1 CONTACT INFORMATION For Technical Support or Warranty Repair information please contact Memtech at Memtech SSD Corporation 7628 Las Positas Road Livermore CA U S A 94550 phone 925 294 8483 or 800 445 5511 fax 925 294 5920 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 303 792 2181 or 800 854 7179 Fax 303 792 2192 ATA Anonymous FTP Site fission dt wdc com ATAS directory is pub standards ata ata 3 7 3 LIMITED LIFETIME WARRANTY Memtech warrants your AT3525 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 a
3. MEMTECH AT3525 3 5 Booster Rocket 3 5 IDE Solid State Flash Drive User Guide 154180 001 Revision 1 0 April 23 2004 Memtech SSD Corporation 7628 Las Positas Road Livermore CA 94550 925 294 8483 800 445 5511 www memtech com 1 2 3 3 2 3 3 4 1 4 3 3 5 Table of Contents HIGHLIGHTS INTRODUCTION INSTALLATION PROCEDURE 3 1 1 ESD precautions 3 1 2 Configuration 3 1 3 Connector 3 1 4 Mounting 3 1 5 Computer setup 3 1 6 Partition 3 1 7 Format UMPERS 3 2 1 MASTER 3 2 2 SLAVE 3 2 3 CABLE SELECT 3 2 4 WRITE PROTECT 3 2 5 FACTORY DEFAULT IDE INTERFACE 3 3 1 IDE Connector Pinout OPERATION ECC MTBF POWER 4 3 1 Power Down 4 3 2 Power supply 4 3 3 Power routing MAINTENANCE SPECIFICATIONS INTERFACE PERFORMANCE ENVIRONMENTAL POWER REQUIREMENTS MECHANICAL APPENDIX CONTACT INFORMATION ATA SPECIFICATION INFORMATION LIMITED LIFETIME WARRANTY Rocket User Guide April 22 2004 3 O ADHANNNNDDOOTGAARAL A wech page 2 of 12 1 HIGHLIGHTS 64Mbyte to 4Gbyte uncompressed capacity Full 40 C to 85 C 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 3 5 drive form factor with a 40 pin 0 1in standard IDE interface 72 bit Reed Solomon ECC for exceptional data reliability Power hold up circuit
4. 0 3 millisecond access time 5 4 Mbyte secon sustained Read throughput 5 1 Mbyte second sustained Write throughput Pending CE and CSA Safety Compliance 2 INTRODUCTION The AT3525 is the fastest member of the Rocket Family drives available today With a maximum capacity of 4 Gbyte in a standard 3 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 AT3525 employs sector erasable NAND EEPROMs Flash to deliver up to 4 Gbytes of uncompressed non volatile solid state storage in an extremely small rugged form factor Sustained host data throughput is a 5 4 Mbytes per seconds for reads and 5 1 Mbytes second for writes The drive 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 64 Mbytes to 4 Gbytes Please contact the factory with your capacity requirements Disk compression utilities
5. 4 000in 12 01mm 0 4732 kr H Figure 1 Drive Connector 3 5 Rocket User Guide April 22 2004 page 4 of 12 3 1 4 MOUNTING The AT3525 may be mounted in any orientation A total of four bottom and six side mounting holes are available for installation The mounting holes require 6 40 screws with a maximum depth of 0 25 inch The diagram given below is valid for all capacities of the AT3525 drive The overall outside dimensions are 4 inch 101 6 mm wide 5 56 inch 141 22mm long and 0 473 inch 12 mm tall Please refer to the following drawing for dimensions and mounting hole locations Connector inn 5 5601 1 D 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 AT3525 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 3 5 Rocket User Guide April 22 2004 page 5 of 12 brie Type_ Capacity cyinders Head
6. 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 3 5 Rocket User Guide April 22 2004 page 3 of 12 3 INSTALLATION 3 1 PROCEDURE 3 1 1 ESD PRECAUTIONS Static electricity kills electronics Before handling the AT3525 please observe the following precautions to avoid ESD damage to the unit Keep the drive 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 and the computer is on 3 1 3 CONNECTOR The drive may be interfaced directly to a standard 3 5 0 1in IDE socket connector or a standard 40 IDE ribbon and AT power cable See drawing below for pin 1 location Care should be taken when installing the AT3525 into the system as misalignment can permanently damage the drive interface connector or electronics 101 60mm
7. 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 AT3525 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 3 5 Rocket User Guide April 22 2004 page 9 of 12 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 AT1820 See diagrams below Star Topology Daisy Chain Do Not Use Power Suppl Power Supply W Main Board Floppy Main Board Hard Disk 5 MAINTENANCE No maintenance is required during the normal use of this drive If data is to b
8. e archived for long periods of time gt 10 years it is recommended that the data on the drive be refreshed every 5 to 10 years The manufacturer of the NAND E PROM 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 3 5 Rocket User Guide April 22 2004 page 10 of 12 6 SPECIFICATIONS 6 1 INTERFACE IDE Compatibility IDE Drive Number Physical Capacity Physical Sector Size 6 2 PERFORMANCE Average Access Track Track Access Sequential Read Sequential Write Random Read Random Write Weighted Average 64 Kbyte transfers 6 3 ENVIRONMENTAL ATA 3 compliant Drive 0 or 1 64 Mbytes to 4 Gbytes 512 bytes 0 3 ms 0 3 ms 5 4 Mbytes sec sustained 5 1 Mbytes sec sustained 4 0 Mbytes sec sustained 5 6 Mbytes sec sustained 5 0 Mbytes sec Commercial Temperature Range Operating Storage 0 to 70 C 45 C to 125 C Extended Temperature Range Operating Storage 20 C to 75 C 45 C to 125 C Industrial Temperature Range Operating Storage Shock operating Vibration operating Airflow Humidity 6 4 POWER REQUIREMENTS Voltage Current Idle Read Write 6 5 MECHANICAL Length Width Height Cable Interface Max Cable Length Rec Cable Length Weight 3072 Mbytes
9. ror 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 MTBF The MTBF can be logically calculated in hours using the following formula Flash Chips Blocks Re programming Cycles Area Rate MTBF Average Programming Sectors per hour 1 sector 512 bytes 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 32 Kbytes 64 sectors are written every 5 minutes into an area occupying 30 of a 512 MB disk 1 Gbit x 4 chips the MTBF is calculated as shown below MTBF 4 8192 250 000 0 3 64 12 3 2 million hours 350 years 4 3 POWER POWER DOWN The AT3525 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
10. s sectors Capac Drive Type Capacity Cylinders Sectors Capacity AT3525 128 128MB 977 8 32 122MB 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 The AT3525 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 selection jumper on the AT3525 The jumper configuration controls the drive selection and write protection The jumper required is a 2 pin vertical header on 0 1in centers Figure 3 Configuration Jumpers 3 5 Rocket User Guide April 22 2004 page 6 of 12 3 2 1 MASTER The master jumper allows the drive to be configured as a master 3 2 2 SLAVE The slave jumper allows the drive to be configured as a slave 3 2 3 CABLE SELECT
11. s 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 3 5 Rocket User Guide April 22 2004 page 12 of 12
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