AP-SAFD18DPA004GS-EM Apacer, AP-SAFD18DPA004GS-EM Datasheet - Page 5

• Manufacturer Part Number: AP-SAFD18DPA004GS-EM
• Description: Solid State Drives - SSD SAFD 18SM SATA FLASH DRIVE MLC 4GB STD
• Manufacturer: Apacer

Specifications of AP-SAFD18DPA004GS-EM

• Rohs: yes
• Product: SATA Flash Drives
• Memory Size: 4 GB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C

1. Product Description
1.1
Apacer’s Serial ATA Flash Drive (SAFD) 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, the SAFD drive
interfaces with the host allowing data to be seamlessly transferred between the host and the flash devices.
The SAFD 181 drive is designed with a single-chip controller to provide total compliance to the SATA II high-
speed interface standard and able to operate at sustained access rates of up to 100 megabytes per second,
which is way much faster than any other solid-state or traditional SATA drive currently available in the market.
In addition to buffer management through dynamical allocation, the SAFD 181 series adopts the Apacer-
specific static 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. The SAFD 181
provides the S.M.A.R.T. feature that follows the SATA Rev. 2.5, ATA/ATAPI-7 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
The SAFD 181 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.
© 2010 Apacer Technology Inc.
Introduction
Functional Block Diagram
Figure 1-1 Apacer SAFD 181 series block diagram
AP-SAFD18BQAxxxxS-EML
Serial ATA Flash Drive
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Rev. 1.4