RoHS Compliant
Serial ATA Flash Drive
SAFD18S4 Product Specifications
December 2
nd
, 2011
Version 1.0
Apacer Technology Inc.
Apacer Technology Inc.
9/F, No. 100, Hsin Tai Wu Rd., Hsichih, Taipei Hsien 221, Taiwan
4
th
Fl., 75 Hsin Tai Wu Rd., Sec.1, Hsichih, New Taipei City, Taiwan 221
Tel: +886-2-2696-1666 Fax: +886-2-2696-1668
Tel: +886-2-2698-2888 Fax: +886-2-2698-2889
www.apacer.com
www.apacer.com
Serial ATA Flash Drive
APS1845xxxx-AXX
Features:
Standard Serial ATA 2.6 (Gen. 2)
–
Serial ATA 2.6 (Gen. 2)
–
SATAⅡ, 3.0 Gbps
–
ATA-compatible command set
Capacities
–
4, 8, 16, 32, 64 GB
Performance*
–
Burst read/write:
300
MB/sec
–
Sustained read: up to 165 MB/sec
–
Sustained write: up to 150 MB/sec
Intelligent endurance design
–
Built-in hardware ECC, enabling up to
16/24 bit correction per 1K bytes
–
Static wear-leveling scheme together
with dynamical block allocation to
significantly increase the lifetime of a
flash device and optimize the disk
performance
–
Flash bad-block management
–
S.M.A.R.T.
–
Power Failure Management
–
ATA Secure Erase
–
TRIM
NAND Flash Type:
SLC
Data integrity under power-cycling
–
No battery required for data storage
Temperature ranges
–
Operation: 0°C to 70°C (32 ~ 158°F)
–
Extended: -40°C to 85°C (-40° ~ 185°F)
–
Storage: -40°C to 100°C (-40° ~ 212°F)
Supply voltage
–
5.0 V
±
5%
Power consumption (typical)*
–
Active mode: 333 mA
–
Idle mode: 95 mA
Form factor
–
JEDEC MO-297
–
Only 4mm in thickness
–
Dimensions (54 x 39.8 x 4, unit: mm)
Connector
–
7-pin SATA signal connector
–
15-pin SATA power connector
Shock & Vibration
–
Shock: 50g (approx.)
–
Vibration: 15g (approx.)
RoHS compliant
*Varies
from capacities. The values addressed here are typical and may vary depending on settings and platforms.
1
© 2011 Apacer Technology Inc.
Rev. 1.0
Serial ATA Flash Drive
APS1845xxxx-AXX
Table of Contents
1. Product Description ................................................................................................. 3
1.1 Introduction .................................................................................................................................................3
1.2 Functional Block Diagram..........................................................................................................................3
1.3 ATA Mode Support ....................................................................................................................................4
1.4 Capacity Specification.................................................................................................................................4
1.5 Performance.................................................................................................................................................4
1.6 Pin Assignments ..........................................................................................................................................5
2. Software Interface .................................................................................................... 7
2.1 Command Set ..............................................................................................................................................7
3. Flash Management ................................................................................................... 8
3.1 Error Correction/Detection ........................................................................................................................8
3.2 Bad Block Management..............................................................................................................................8
3.3 Wear Leveling..............................................................................................................................................8
3.4 Power Failure Management .......................................................................................................................8
3.5 ATA Secure Erase .......................................................................................................................................8
3.6 S.M.A.R.T. ...................................................................................................................................................9
3.7 TRIM............................................................................................................................................................9
4. Environmental Specifications ............................................................................... 10
4.1 Environments.............................................................................................................................................10
4.2 Mean Time Between Failures (MTBF)....................................................................................................10
4.3 Certification and Compliance ..................................................................................................................10
5. Electrical Characteristics ...................................................................................... 11
5.1 Operating Voltage .....................................................................................................................................11
5.2 Power Consumption..................................................................................................................................11
5.3 Electrostatic Discharge .............................................................................................................................11
5.4 Electrical Fast Transient/Burst................................................................................................................12
6. Physical Characteristics........................................................................................ 13
7. Product Ordering Information ............................................................................... 15
7.1 Product Code Designations ......................................................................................................................15
7.2 Valid Combinations ..................................................................................................................................16
2
© 2011 Apacer Technology Inc.
Rev. 1.0
Serial ATA Flash Drive
APS1845xxxx-AXX
1. Product Description
1.1
Introduction
Apacer’s SAFD18S4 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.
SAFD18S4 drive is designed with a single-chip controller, offering capacities of up to 64 gigabytes and
providing full support for the SATAⅡ high-speed interface standard. It can operate at sustained access rates
of up to 100 megabytes per second, which is much faster than any other solid-state or traditional SATA drive
currently available on the market.
In addition to buffer management through dynamical allocation, SAFD18S4 adopts the Apacer-specific global
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. SAFD18S4 provides the S.M.A.R.T.
feature that follows the SATA Rev. 2.6, 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
Functional Block Diagram
SAFD18S4 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 SAFD18S4 block diagram
3
© 2011 Apacer Technology Inc.
Rev. 1.0
Serial ATA Flash Drive
APS1845xxxx-AXX
1.3
ATA Mode Support
Up to PIO mode-4
Up to Multiword DMA mode-2
Up to UDMA mode-5
SAFD18S4 provides ATA mode support as follows:
1.4
Capacity Specification
Capacity specification of SAFD18S4 product family is available as shown in Table 1-1. It lists the specific
capacity, the default numbers of logical cylinders and heads, and the number of logical sectors per track for
each product line.
Table 1-1
Capacity specification
Capacity
4 GB
8 GB
16 GB
32 GB
64 GB
Total Bytes*
3,011,420,160
7,012,196,352
16,013,942,784
32,017,047,552
64,023,257,088
Cylinders
5,835
15,334
16,383
16,383
16,383
Heads
16
16
16
16
16
Sectors
63
63
63
63
63
Max LBA*
5,881,680
13,695,696
31,277,232
62,533,296
125,045,424
*Display of total bytes varies from file systems.
**Cylinders, heads or sectors are not applicable for these capacities. Only LBA addressing applies.
1.5
Performance
Performance of SAFD18S4 is shown in Table 1-2.
Table 1-2
Performance specification
Capacity
Performance
Sustained Read
(MB/s)
Sustained Write
(MB/s)
4 GB
150
50
8 GB
160
95
16 GB
160
95
32 GB
160
145
64 GB
165
150
Note: Performance varies from flash configurations.
4
© 2011 Apacer Technology Inc.
Rev. 1.0
嵌入式系统
