ATA Flash Drive 255

AP-FD25B20AxxxxxS-xxx

1. General Description

Apacer’s ATA-Flash Drive (AFD) is a high-performance, solid state drive (SSD) designed to replace a

conventional IDE hard disk drive. AFD supports standard ATA/IDE protocol and can be plugged into a

standard IDE connector commonly found in desktop or portable PCs. It is more rugged, reliable and

power-efficient compared to the mechanical hard drive and is designed for use in rugged laptops, military

devices, thin clients, Point of Sale (POS) terminals, telecom, medical instruments, surveillance systems

and industrials PCs. AFD also offers users selectable Master/Slave operation through an external jumper

setting. Apacer AFD Series is the best drop-in replacement for high-maintenance HDD where reliability is

a major concern.

AFD includes a built-in microcontroller and file management firmware that communicates through with the

ATA standard interfaces. This means the AFD does not require any additional or proprietary host software

such as the Flash File System (FFS) and Memory Technology Driver (MTD) software. AFD is designed to

work at 5 Volts, support the standard ATA/IDE protocol up to PIO Mode-4, Multiword DMA Mode-2, and

Ultra DMA Mode-6 interfaces, and use a standard ATA driver that fits to all major operating systems such

as Microsoft’s Windows series, Apple’s Mac OS family, and UNIX variants

Featuring technologies as Advanced Wear-leveling algorithms, S.M.A.R.T, Enhanced Data Integrity,

Intelligent Power Failure Recovery, and ATA Secure Erase, with cache made of SDRAM up to 32 MB on

board, Apacer assures users of a versatile device on data storage.

1.1 Performance-Optimized Controller

The heart of an ATA-Flash Drive is the ATA controller, which translates standard ATA signals into the

data and controls of the flash media. This proprietary ATA controller is specifically designed to attain high

data throughput from the host to the flash.

1.1.1 SRAM Buffer

The SRAM buffer is a key contributor to the ATA controller performance. It optimizes data writes to the

flash.

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© 2011 Apacer Technology Inc.

Rev. 1.2