Serial ATA Flash Drive

APS25M5Xxxxx-PXX

3

© 2013 Apacer Technology Inc.

Rev. 1.5

1. Product Description

1.1

Introduction

Apacer’s Serial ATA Flash Drive (SAFD) is a non-volatile SATA solid-state drive (SSD) that serves as the

ideal boot drive or mass storage device. Compliant with SATA 3.0 Gbps standard, the drive conforms to most

mainstream host system platforms with SATA-compliant interfaces, making it the primary storage solution for

replacing traditional hard disk drive.

SAFD 25M4 drive is designed with a powerful controller, offering capacities of up to 64 gigabytes and

providing full support for the SATA 3.0 Gbps high-speed interface standard. It can operate at sustained

access rates up to 165 megabytes per second, while power consumption remains at minimal level. Regarding

data integrity and memory efficiency, the controller unit of the device handles wear leveling, ECC, bad block

management and power management in urgent situations.

In addition, SAFD 25M4 adopts the global wear-leveling scheme to allow uniform use of all storage blocks,

ensuring that the lifespan of a flash media can be significantly increased and the disk performance is

optimized as well. SAFD 25M4 provides the S.M.A.R.T. feature that follows the SATA Rev. 2.6, ATA/ATAPI

specifications and uses the standard SMART command B0h to read data from the drive. This feature protects

the user from unscheduled downtime by monitoring and storing critical drive performance.

1.2

Functional Block Diagram

SAFD25M4 drive includes a single-chip SATA 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 SAFD25M4 block diagram