ATA Flash Drive
Ⅲ
AP-FD18A20BxxxxxR-XXX
RoHS Compliant
ATA Flash Drive
Ⅲ
Specification for AFD
Ⅲ
183
May 9, 2008
Apacer Technology Inc.
9/F, No. 100, Hsin Tai Wu Rd., Hsichih, Taipei Hsien 221, Taiwan
Tel: +886-2-2696-1666
www.apacer.com
Fax: +886-2-2696-1668
1
© 2008 Apacer Technology Inc.
Rev. 1.1
ATA Flash Drive
Ⅲ
AP-FD18A20BxxxxxR-XXX
Features:
Standard ATA/IDE Bus Interface
–
512 bytes per sector
–
ATA command set compatible
–
Support up to PIO Mode-4
–
Support up to Multi-word DMA Mode-2
–
Support up to Ultra DMA Mode-4
Capacity
–
1,2 ,4 ,8 ,16 ,32 GB
Fast Sustained Read Performance
–
Support up to 35 MB/sec
Fast Sustained Write Performance
–
Support up to 25 MB/sec
Intelligent endurance design
–
Built-in Embedded Flash File System
(FFS)
–
Built-in hardware ECC, correcting up to 8
random bits of error per 512-byte sector
–
Dynamic wear-leveling algorithms to
substantially increase longevity of the
flash media
1.
Extended Temperature
Power Management Unit
–
Immediate disabling of unused circuitry
without host intervention
–
Zero wake-up latency
Temperature ranges
–
0°C ~ 70°C for operation
1
–
-40°C ~ 85°C for operation (ET )
–
-40°C ~ 100°C for storage
Supply voltage
–
3.3 V
Low power consumption
–
Active mode: 75mA
–
Sleep mode: 2000 A
Form factor
–
1.8 inch
Connector type
–
40 pin ZIF
RoHS Compliant
2
© 2008 Apacer Technology Inc.
Rev. 1.1
ATA Flash Drive
Ⅲ
AP-FD18A20BxxxxxR-XXX
Table of Contents
1. GENERAL DESCRIPTION ............................................................................................... 4
1.1 Performance-Optimized Controller..................................................................................................4
1.1.1 Power Management Unit (PMU).............................................................................................................4
1.1.2 SRAM Buffer ..........................................................................................................................................4
1.1.3 Embedded Flash File System ..................................................................................................................4
1.1.4 Error Correction Code (ECC).................................................................................................................4
2. FUNCTIONAL BLOCK ...................................................................................................... 5
3. PIN ASSIGNMENTS ........................................................................................................... 6
4. CAPACITY SPECIFICATION ........................................................................................... 7
4.1 Performance Specification ..............................................................................................................7
4.2 Environmental Specification............................................................................................................7
5. SOFTWARE INTERFACE ................................................................................................ 8
5.1 Command Set ................................................................................................................................8
6. ELECTRICAL SPECIFICATION .................................................................................... 10
7. PHYSICAL CHARACTERISTICS.................................................................................. 11
7.1 Dimension ....................................................................................................................................11
8. PRODUCT ORDERING INFORMATION ..................................................................... 14
8.1 Product Code Designation ............................................................................................................14
8.2 Valid Combinations.......................................................................................................................15
3
© 2008 Apacer Technology Inc.
Rev. 1.1
ATA Flash Drive
Ⅲ
AP-FD18A20BxxxxxR-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 ZIF
connector commonly found in 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. 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 and is set to the Master operation in default. 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 3.3 Volts, support the standard ATA/IDE
protocol up to PIO Mode-4, Multiword DMA Mode-2, and Ultra DMA Mode-4 interfaces and uses a
standard ATA driver that fits to all major operating systems such as the Windows series, MAC OS, and
Unix etc.
1.1 Performance-Optimized Controller
The heart of an ATA-Flash Drive is the ATA controller, which translates standard ATA signals into the
Flash Media 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 Power Management Unit (PMU)
The power management unit (PMU) controls the power consumption of the ATA-Flash Drive. It reduces
the power consumption of the ATA-Flash Drive Controller by putting circuitry not in operation into sleep
mode. The PMU has zero wake-up latency.
1.1.2 SRAM Buffer
The ATA Flash Drive Controller performs as an SRAM buffer to optimize the host’s data transfer to and
from the flash media.
1.1.3 Embedded Flash File System
The embedded Flash File System (FFS) is an integral part of the ATA-Flash Drive Controller. It contains
MCU firmware that performs the following tasks:
1. Translates host side signals into flash media Writes and Reads.
2. Provides dynamic flash media wear leveling to spread the flash writes across all unused memory
address space to increase the longevity of flash media.
3. Keeps track of data file structures
1.1.4 Error Correction Code (ECC)
The ATA-Flash Drive Controller uses BCH Error Detection Code (EDC) and Error Correction Code (ECC)
algorithms which correct up to eight random single-bit errors for each 512-byte block of data.
High performance is achieved through hardware-based error detection and correction.
4
© 2008 Apacer Technology Inc.
Rev. 1.1
ATA Flash Drive
Ⅲ
AP-FD18A20BxxxxxR-XXX
2. Functional Block
The ATA-Flash Drive (AFD) includes the ATA controller and flash media, as well as the ATA standard
interface. Figure 2-1 shows the functional block diagram.
Flash Array
Flash
Media
HOST
ATA/IDE Bus
ATA
Controller
Flash
Media
Flash
Media
Flash
Media
.
.
.
Figure 2-1:
Functional block diagram
5
© 2008 Apacer Technology Inc.
Rev. 1.1
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