APS1845004G-PTW [ETC]
Serial ATA Flash Drive;
| 型号： | APS1845004G-PTW |
| 厂家： | 
ETC |
| 描述： | Serial ATA Flash Drive |
| 文件： | 总19页 (文件大小：395K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RoHS Recast Compliant
Serial ATA Flash Drive
SAFD18S4 Product Specifications
May 2nd, 2013
Version 1.5
Apacer Technology Inc.
4th Fl., 75 Hsin Tai Wu Rd., Sec.1, Xizhi, New Taipei City, Taiwan 221
Tel: +886-2-2698-2888 Fax: +886-2-2698-2889
www.apacer.com
Serial ATA Flash Drive
APS1845Xxxxx-PXX
Features:
ꢀ
Standard Serial ATA 2.6 (Gen. 2)
ꢀ
Endurance
–
–
–
Serial ATA 2.6 (Gen. 2)
SATA , 3.0 Gbps
ATA-compatible command set
–
–
–
–
–
4GB: 320 TBW
8GB: 640 TBW
16GB: 1,280 TBW
32GB: 2,560 TBW
64GB: 5,130 TBW
ꢀ
ꢀ
Capacities
–
4, 8, 16, 32, 64 GB
ꢀ
Temperature ranges
Performance*
–
–
–
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)
–
–
–
Burst read/write: 300 MB/sec
Sustained read: up to 165 MB/sec
Sustained write: up to 150 MB/sec
ꢀ
ꢀ
Supply voltage
5.0 V 5%
ꢀ
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
Power consumption (typical)*
Active mode: 335 mA
Idle mode: 95 mA
–
–
–
ꢀ
Form factor
–
–
–
JEDEC MO-297
Only 4mm in thickness
Dimensions (54 x 39.8 x 4, unit: mm)
–
–
–
–
–
Flash bad-block management
S.M.A.R.T.
Power Failure Management
ATA Secure Erase
TRIM
ꢀ
ꢀ
Connector
–
7-pin SATA signal connector
15-pin SATA power connector
–
ꢀ
NAND Flash Type: SLC
Shock & Vibration**
Shock: 1500 G
Vibration: 15 G
–
–
ꢀ
ꢀ
RoHS Recast compliant***
Write Protect (optional)
–
Enabled by onboard hardware switch
*Varies from capacities. The values addressed here are typical and may vary depending on settings and platforms.
**Non-operating
***Complies with 2011/65/EU standard.
1
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
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
4.4 Endurance ...................................................................................................................................................10
5. Electrical Characteristics ...................................................................................... 12
5.1 Operating Voltage.....................................................................................................................................12
5.2 Power Consumption..................................................................................................................................12
6. Physical Characteristics........................................................................................ 13
6.1 Dimensions.................................................................................................................................................13
6.2 Write Protect Switch (optional).................................................................................................................14
7. Product Ordering Information............................................................................... 15
7.1 Product Code Designations ......................................................................................................................15
7.2 Valid Combinations...................................................................................................................................16
2
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
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. Compliant with SATA II 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.
SAFD18S4 drive is designed with a powerful single-chip controller, offering capacities of up to 64 gigabytes
and providing full support for the SATA high-speed interface standard. It can operate at sustained access
rates of up to 160 megabytes per second while operating at relatively low power consumption, this SATA SSD
is an ideal replacement for conventional hard disk drive in industrial computing applications.
In addition, 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 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 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
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
1.3 ATA Mode Support
SAFD18S4 provides ATA mode support as follows:
ꢀ
ꢀ
ꢀ
Up to PIO mode-4
Up to Multiword DMA mode-2
Up to UDMA mode-5
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
Total Bytes*
4,011,614,208
8,012,390,400
16,013,942,784
32,017,047,552
64,023,257,088
Cylinders
7,773
Heads
16
Sectors
63
Max LBA*
7,835,184
8 GB
15,525
16,383
16,383
16,383
16
63
15,649,200
31,277,232
62,533,296
125,045,424
16 GB
32 GB
64 GB
16
63
16
63
16
63
*Display of total bytes varies from file systems.
**Cylinders, heads or sectors are not applicable for these capacities. Only LBA addressing applies.
LBA count addressed in the table above indicates total user storage capacity and will remain the same throughout the lifespan of
the device. However, the total usable capacity of the SSD is most likely to be less than the total physical capacity because a small
portion of the capacity is reserved for device maintenance usages.
1.5 Performance
Performance of SAFD18S4 is shown in Table 1-2.
Table 1-2 Performance specification
Capacity
4 GB
145
50
8 GB
155
16 GB
155
32 GB
160
64 GB
165
Performance
Sustained Read
(MB/s)
Sustained Write
(MB/s)
105
105
145
150
Note: Performance varies from flash configurations or host system settings.
4
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
1.6 Pin Assignments
Table 1-3 describes the SAFD signal segment, and Table1-4, power segment.
Figure 1-2 SATA Connectors
Table 1-3: Signal segment
Table 1-4: Power segment
Name Type
Description
Pin
Signal/Description
S1
S2
S3
S4
S5
S6
S7
GND
RxP
RxN
GND
TxN
P1
P2
Unused (3.3V)
Unused (3.3V)
Unused (3.3V)
Ground
+ Differential Receive Signal
- Differential Receive Signal
P3
P4
- Differential Transmit Signal
+ Differential Transmit Signal
P5
Ground
TxP
P6
Ground
GND
P7
5V
P8
5V
P9
5V
P10
P11
P12
P13
P14
P15
Ground
Reserved
Ground
Unused (12V)
Unused (12V)
Unused (12V)
5
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
Figure 1-3 SATA Cable/Connector Connection Diagram
The connector on the left represents the Host with TX/RX differential pairs connected to a cable. The
connector on the right shows the Device with TX/RX differential pairs also connected to the cable. Notice also
the ground path connecting the shielding of the cable to the Cable Receptacle.
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© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
2. Software Interface
2.1 Command Set
Table 2-1 summarizes the ATA commands supported by SAFD18S4.
Table 2-1: Command set
Code
E5h
06h
90h
E7h
EAh
Ech
E3h
E1h
91h
C8h
25h
C4h
29h
20h
24h
40h
42h
10h
F6h
Command
Code
F3h
F4h
F5h
F1h
F2h
70h
Efh
Command
Check Power Mode
Data Set Management
Execute Device Diagnostic
Flush Cache
Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Set Password
Security Unlock
Seek
Flush Cache EXT
Identify Device
Idle
Set Features
Idle Immediate
C6h
E6h
B0h
E2h
E0h
Cah
35h
C5h
39h
30h
34h
Set Multiple Mode
Sleep
Initialize Device Parameters
Read DMA
SMART
Read DMA EXT
Read Multiple
Standby
Standby Immediate
Write DMA
Read Multiple EXT
Read Sector
Write DMA EXT
Write Multiple
Write Multiple EXT
Write Sector
Read Sector EXT
Read Verify Sectors
Read Verify Sectors EXT
Recalibrate
Write Sector EXT
Security Disable Password
7
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
3. Flash Management
3.1 Error Correction/Detection
SAFD18S4 implements a hardware ECC scheme, based on the BCH algorithm. It can detect and correct up to
16 bits or 24 bits error in 1K bytes.
3.2 Bad Block Management
Current production technology is unable to guarantee total reliability of NAND flash memory array. When a
flash memory device leaves factory, it comes with a minimal number of initial bad blocks during production or
out-of-factory as there is no currently known technology that produce flash chips free of bad blocks. In addition,
bad blocks may develop during program/erase cycles. When host performs program/erase command on a
block, bad block may appear in Status Register. Since bad blocks are inevitable, the solution is to keep them
in control. Apacer flash devices are programmed with ECC, block mapping technique and S.M.A.R.T to
reduce invalidity or error. Once bad blocks are detected, data in those blocks will be transferred to free blocks
and error will be corrected by designated algorithms.
3.3 Wear Leveling
Flash memory devices differ from Hard Disk Drives (HDDs) in terms of how blocks are utilized. For HDDs,
when a change is made to stored data, like erase or update, the controller mechanism on HDDs will perform
overwrites on blocks. Unlike HDDs, flash blocks cannot be overwritten and each P/E cycle wears down the
lifespan of blocks gradually. Repeatedly program/erase cycles performed on the same memory cells will
eventually cause some blocks to age faster than others. This would bring flash storages to their end of service
term sooner. Wear leveling is an important mechanism that level out the wearing of blocks so that the
wearing-down of blocks can be almost evenly distributed. This will increase the lifespan of SSDs. Commonly
used wear leveling types are Static and Dynamic.
3.4 Power Failure Management
Power Failure Management plays a crucial role when experiencing unstable power supply. Power disruption
may occur when users are storing data into the SSD. In this urgent situation, the controller would run multiple
write-to-flash cycles to store the metadata for later block rebuilding. This urgent operation requires about
several milliseconds to get it done. At the next power up, the firmware will perform a status tracking to retrieve
the mapping table and resume previously programmed NAND blocks to check if there is any incompleteness
of transmission.
3.5 ATA Secure Erase
ATA Secure Erase is an ATA disk purging command currently embedded in most of the storage drives.
Defined in ATA specifications, (ATA) Secure Erase is part of Security Feature Set that allows storage drives to
erase all user data areas. The erase process usually runs on the firmware level as most of the ATA-based
storage media currently in the market are built-in with this command. ATA Secure Erase can securely wipe out
the user data in the drive and protects it from malicious attack.
8
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
3.6 S.M.A.R.T.
S.M.A.R.T. is an abbreviation for Self-Monitoring, Analysis and Reporting Technology, a self-monitoring
system that provides indicators of drive health as well as potential disk problems. It serves as a warning for
users from unscheduled downtime by monitoring and displaying critical drive information. Ideally, this should
allow taking proactive actions to prevent drive failure and make use of S.M.A.R.T. information for future
product development reference.
Apacer devices use the standard SMART command B0h to read data out from the drive to activate our
S.M.A.R.T. feature that complies with the ATA/ATAPI specifications. S.M.A.R.T. Attribute IDs shall include
initial bad block count, total later bad block count, maximum erase count, average erase count, power on
hours and power cycle. When the S.M.A.R.T. Utility running on the host, it analyzes and reports the disk
status to the host before the device reaches in critical condition.
Note: attribute IDs may vary from product models due to various solution design and supporting capabilities.
3.7 TRIM
TRIM, though in capital letters usually, is a memory computation command rather than an abbreviation. It is
mainly a SATA command that enables the operating system to inform the SSD (Solid State Drive) which
blocks of previously stored data are no longer valid, due to erases by the host or operating system, such as
file deletions or disk formatting. Once notified, SSD will begin the discard of the invalid LBAs and retain more
space for itself, in fact, the discarded is no longer recoverable.
When an LBA is replaced by the operating system, as with overwrite of a file, the SSD is informed that the
originally occupied LBA is determined as no longer in use or invalid. The SSD will not save those blocks in
garbage collected sectors. Noticeably, a file deletion command by host or operating system never actually
erases the actual content, rather, just the file is marked as deleted. This issue is even specifically noticeable
for flash based memory devices, such as SSDs. In fact, an SSD will keep garbage collecting the invalid,
previously occupied LBAs, if it is not informed that these LBAs can be erased. Thus, the SSD would
experience a significant performance downfall.
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© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
4. Environmental Specifications
4.1 Environments
SAFD18S4 environmental specifications follow the US Military Standard MIL-STD-810F, as shown in below
table.
Table 4-1 SAFD18S4 environmental specifications
Environment
Specification
0°C to 70°C (Operating), -40°C to 85°C (operating-extended)
Temperature
-40°C to 100°C (Non-operating)
Non-operating : Sine wave, 15(G), 10~2000(Hz),
Operating : Random, 7.7(Grms), 20~2000(Hz)
Vibration
Shock
Non-operating: Acceleration, 1,500 G, 0.5 ms
Operating: Peak acceleration, 50 G, 11 ms
4.2 Mean Time Between Failures (MTBF)
Mean Time Between Failures (MTBF) is predicted based on reliability data for the individual components in
SAFD drive. The prediction result for the SAFD18S4 is more than 2,000,000 hours.
Notes about the MTBF:
The MTBF is predicated and calculated based on “Telcordia Technologies Special Report, SR-332, Issue 2”
method.
4.3 Certification and Compliance
SAFD18S4 complies with the following standards:
ꢀ
ꢀ
ꢀ
ꢀ
CE
FCC
RoHS Recast
MIL-STD-810F
4.4 Endurance
Terabytes Written (TBW) is an endurance rating system that indicates the maximum number of terabytes
written by the host to the drive. NAND flash has a limit on how many P/E cycles it can withstand before its
data retention becomes unreliable. Thus, key factors, such as Write Amplifications and the number of P/E
cycles, can influence the lifespan of the drive.
The TBW of the device are listed in the following table.
10
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
Capacity
4 GB
TeraBytes Written
320
640
8 GB
16 GB
32 GB
64 GB
1,280
2,560
5,130
Notes:
ꢁ
ꢁ
The measurement assumes the data written to the SSD for test is under a typical and constant rate.
The measurement follows the standard metric: 1 TB (Terabyte) = 1000 GB.
11
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
5. Electrical Characteristics
5.1 Operating Voltage
Table 5-1 lists the supply voltage for SAFD18S4.
Table 5-1 SAFD18S4 operating voltage
Parameter
Conditions
Supply voltage
5V 5% ( 4.75-5.25 V)
5.2 Power Consumption
Table 5-2 Power consumption (typical)
Capacity
4 GB
250
80
8 GB
270
80
16 GB
320
32 GB
335
64 GB
335
Mode
Active
(mA)
Stand By
(mA)
90
95
95
Note: Power consumptions may vary depending on settings and platforms
12
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
6. Physical Characteristics
6.1 Dimensions
Unit:
Tolerance: 0.2
13
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
6.2 Write Protect Switch (optional)
Write Protect switch
Enable
Disable
Note: DIP switch 1, 3, and 4 are defined as “reserved” for
this model.
Description of Apacer Write Protect:
Apacer implements the Virtual Write scheme that allows write commands to go through the flash controller
and data temporarily stored. The OS can still function normally but no data has been actually written into the
flash. Since the Virtual Write scheme runs at device level, it requires no software or driver installation and is
independent from the host OS.
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© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
7. Product Ordering Information
7.1 Product Code Designations
A P S 184 5 X x x x x – P X X
Temperature Range
Blank: Standard
W: Extended Temperature
Flash type
Version Control
Capacities:
004G =
008G =
4GB
8GB
016G = 16GB
032G = 32GB
064G = 64GB
Blank: No Write Protect
N: Write Protect
Solution version
MO-297 Form Factor
Serial ATA Flash Drive
Apacer Product Code
15
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
7.2 Valid Combinations
SAFD18S4
Capacity
4GB
Standard
Extended Temperature
APS1845004G-PT
APS1845008G-PT
APS1845016G-PT
APS1845032G-PC
APS1845064G-PC
APS1845004G-PTW
APS1845008G-PTW
APS1845016G-PTW
APS1845032G-PCW
APS1845064G-PCW
8GB
16GB
32GB
64GB
SAFD18S4 with Write Protect
Capacity
4GB
Standard
Extended Temperature
APS1845N004G-PTW
APS1845N008G-PTW
APS1845N016G-PTW
APS1845N032G-PCW
APS1845N064G-PCW
APS1845N004G-PT
APS1845N008G-PT
APS1845N016G-PT
APS1845N032G-PC
APS1845N064G-PC
8GB
16GB
32GB
64GB
Note: Please consult with Apacer sales representatives for availabilities.
16
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
Revision History
Description
Revision
0.1
Date
Preliminary release
11/17/2011
12/02/2011
1/20/2012
03/23/2012
08/24/2012
09/27/2012
05/02/2013
1.0
Official release
1.1
Revised capacity specifications
1.2
Revised S.M.A.R.T information
1.3
Updated Product Ordering Information due to firmware upgrade
Added Write Protect option
1.4
1.5
Updated Product Ordering Information due to firmware upgrade
17
© 2013 Apacer Technology Inc.
Rev. 1.5
Serial ATA Flash Drive
APS1845Xxxxx-PXX
Global Presence
Apacer Technology Inc.
4th Fl., 75 Hsin Tai Wu Rd., Sec.1
Xizhi, New Taipei City
Taiwan 221
Taiwan (Headquarters)
R.O.C.
Tel: +886-2-2698-2888
Fax: +886-2-2698-2889
amtsales@apacer.com
Apacer Memory America, Inc.
386 Fairview Way, Suite102,
Milpitas, CA 95035
Tel: 1-408-518-8699
Fax: 1-408-935-9611
sa@apacerus.com
U.S.A.
Japan
Europe
China
India
Apacer Technology Corp.
5F, Matsura Bldg., Shiba, Minato-Ku
Tokyo, 105-0014, Japan
Tel: 81-3-5419-2668
Fax: 81-3-5419-0018
jpservices@apacer.com
Apacer Technology B.V.
Science Park Eindhoven 5051 5692 EB Son,
The Netherlands
Tel: 31-40-267-0000
Fax: 31-40-267-0000#6199
sales@apacer.nl
Apacer Electronic (Shanghai) Co., Ltd
1301, No.251,Xiaomuqiao Road, Shanghai,
200032, China
Tel: 86-21-5529-0222
Fax: 86-21-5206-6939
sales@apacer.com.cn
Apacer Technologies Pvt Ltd,
# 535, 1st Floor, 8th cross, JP Nagar 3rd Phase,
Bangalore – 560078, India
Tel: 91-80-4152-9061
sales_india@apacer.com
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© 2013 Apacer Technology Inc.
Rev. 1.5
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