Serial ATA Flash Drive

APXXXXGAS203-X

1. Product Description

1.1

Introduction

Apacer’s Serial ATA Flash Drive AS203 is a solid-state disk (SSD) drive that contains a controller, embedded

firmware, and flash media along with a male connector. Using NAND flash memory devices, AS203 drive

interfaces with the host allowing data to be seamlessly transferred between the host and the flash devices.

AS203 is designed with a single-chip controller, offering capacities of up to 256 gigabytes and providing full

support for the SATA II high-speed interface standard. It can operate at sustained access rates of up to 250

megabytes per second.

In addition to buffer management through dynamical allocation, AS203 adopts the Apacer-specific superior

wear-leveling scheme to allow uniform use of all storage blocks, ensuring that the lifetime of a flash media can

be significantly increased and the disk performance is optimized as well.

1.2

Functional Block Diagram

AS203 drive includes a single-chip SATA II Controller and the flash media, as well as the SATA standard

interface. The controller integrates the flash management unit with the controller itself to support multi-channel,

multi-bank flash arrays. Figure 1-1 shows the functional block diagram.

Figure 1-1 Apacer AS203 block diagram

3

© 2011 Apacer Technology Inc.

Rev. 1.0