Memtech wolverine AT2550, Руководство пользователя

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AT2550 User Guide December 8, 2003 page 3 of 17
1. HIGHLIGHTS
•
4.8 Gbyte capacity under 9.5mm
•
8.7 Gbyte capacity under 12.5mm
• 27 Gbyte maximum capacity
• Full -55
o
C to +125
o
C military temperature range
•
5 volt, low power operation
•
Completely solid state - no moving parts and no batteries
•
Extremely Rugged - 1000G operating shock, 15G operating vibration
•
2.5” drive form factor with a 44 pin, 2mm IDE interface
• 16-byte CRC/ECC and Active Remap™ for exceptional data reliability
• UDMA-66 compliant ATA interface
•
0.1 millisecond access time
•
26 Mbyte/second cached read throughput
•
20 Mbyte/second cached write throughput
•
16 Mbyte SDRAM buffer
•
Nonvolatile NAND E
2
PROM with 10 year data retention
• EMC and CSA Safety Compliant
2. INTRODUCTION
The AT2550 “Wolverine” is a new line of IDE solid state drives available in a low-
profile 2.5-inch format. The drive is completely solid state, making it exceptionally
rugged and able to operate in extreme environmental conditions.
Sector Erasable NAND E
2
PROM (Flash) is used to provide up to 27 Gbytes of
nonvolatile, solid state storage in an extremely small, rugged form factor. 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 a commercially available IDE controller. It
supports UDMA-66 transfers, LBA mode addressing, and incorporates a 1 Mbyte
buffer, and a 16-byte hardware error detection and correction logic. The
CRC/ECC circuitry, in conjunction with Memtech’s proprietary Active Remap™
technology, makes for a virtually bulletproof medium for data retention.
The drive can be operated in both caching and non-caching modes, and is
configured via the operating system. When caching is enabled, the full 16 Mbyte
SDRAM buffer is available as a direct mapped cache. When used in the non-
caching mode, a small portion buffer is employed, and all new data is committed
to flash before a write routine is completed.
The drive is available in a number of standard capacities ranging from 1 Gbyte to
27 Gbytes. Drives under 4.8 Gbytes are 9.5mm tall, while 8.7 Gbyte capacity
drives are 12.5mm tall.
Each drive is fully tested under environmental extremes at the factory using
Memtech’s proprietary EnduroTest™ to guarantee data integrity in even the
harshest conditions. Full functionality of the product is guaranteed out of the box.