Embedded Solid State Drive
RoHS Recast Compliant
Embedded Solid State Drive
SAFD18S4 -M Product Specifications
April 3rd, 2013
Version 1.7
Apacer Technology Inc.
Apacer Technology Inc.
9/F,
th No. 100, Hsin Tai Wu Rd., Hsichih, Taipei Hsien 221, Taiwan
4 Fl., 75 Hsin Tai Wu Rd., Sec.1, Xizhi, 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
Embedded Solid State Drive
APS1845Xxxxx-CCMX
Features:
Standard Serial ATA 2.6 (Gen. 2)
– Serial ATA 2.6 (Gen. 2)
– SATA , 3.0 Gbps
– ATA-compatible command set
– ATA modes support
Endurance
– 8GB: 13 TBW
– 16GB: 27 TBW
– 32GB: 54 TBW
– 64GB: 108 TBW
– 128GB: 216 TBW
Temperature ranges
– Operation:
Standard: 0°C to 70°C (32 ~ 158°F)
Extended: -40 ~ +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: 310 mA
– Idle mode: 86 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: 1500 G
– Vibration: 15 G
RoHS Recast compliant****
Write Protect (optional)
– Enabled by onboard hardware switch
Ⅱ
Capacities
– 8, 16, 32, 64, 128 GB
Performance*
– Burst read/write: 300 MB/sec
– Sustained read: up to 145 MB/sec
– Sustained write: up to 80 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: MLC
±
*Varies from capacities. The values addressed here are typical and may vary depending on settings and platforms.
**Only available in 16, 32, 64 and 128GB capacities. Please see “Product Ordering Information” for details.
***Non-operating
****Complies with 2011/65/EU
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
Table of Contents
1.
Product Description ............................................................................................... 3
1.1
1.2
1.3
1.4
1.5
1.6
2.
Introduction .................................................................................................................................................3
Functional Block Diagram..........................................................................................................................3
ATA Mode Support ....................................................................................................................................4
Capacity Specification.................................................................................................................................4
Performance.................................................................................................................................................4
Pin Assignments ..........................................................................................................................................5
Software Interface................................................................................................... 7
2.1 Command Set ..............................................................................................................................................7
3.
Flash Management ................................................................................................. 8
3.1
3.2
3.3
3.4
3.5
3.6
3.6
4.
Error Correction/Detection ........................................................................................................................8
Bad Block Management..............................................................................................................................8
Wear Leveling..............................................................................................................................................8
Power Failure Management .......................................................................................................................8
ATA Secure Erase .......................................................................................................................................8
S.M.A.R.T. ...................................................................................................................................................8
TRIM............................................................................................................................................................9
Environment 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
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
1. Product Description
1.1 Introduction
Apacer’s SAFD18S4-M is an Embedded Solid State Drive that contains a powerful 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-M drive is designed with a single-chip controller, offering capacities of up to 128 gigabytes and
providing full support for the SATA
high-speed interface standard. It can operate at sustained access rates
of up to 145 megabytes per second, which is much faster than conventional SATA hard disk drives currently
available on the market. Though built with MLC, this SSD can work in highly demanding environment as it can
withstand ambient temperature from -40°C to +85°C (for certain capacities only).
Ⅱ
In addition, SAFD18S4-M 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-M 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
Figure 1-1
Apacer SAFD18S4-M block diagram
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
1.3
ATA Mode Support
SAFD18S4-M provides ATA mode support as follows:
1.4
Up to PIO mode-4
Up to Multiword DMA mode-2
Up to UDMA mode-5
Capacity Specification
Table 1-1 Capacity specification
Capacity
Total Bytes*
Cylinders
Heads
Sectors
Max LBA*
8 GB
8,012,390,400
15,525
16
63
15,649,200
16 GB
16,013,942,784
16,383
16
63
31,277,232
32 GB
32,017,047,552
16,383
16
63
62,533,296
64 GB
64,023,257,088
16,383
16
63
125,045,424
128 GB
126,718,694,912
16,383
16
63
247,497,451
*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-M is shown in Table 1-2.
Table 1-2 Performance specification
Capacity
Performance
Sustained Read
(MB/s)
Sustained Write
(MB/s)
8 GB
16 GB
32 GB
64 GB
128 GB
110
125
135
145
145
26
26
38
80
80
Note: Performance varies from flash configurations or host system settings.
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
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:
Table 1-4:
Signal segment
Name
Type
Description
S1
GND
S2
RxP
S3
RxN
S4
GND
S5
TxN
- Differential Transmit Signal
S6
TxP
+ Differential Transmit Signal
S7
GND
Power segment
Pin
Signal/Description
P1
Unused (3.3V)
+ Differential Receive Signal
P2
Unused (3.3V)
- Differential Receive Signal
P3
Unused (3.3V)
P4
Ground
P5
Ground
P6
Ground
P7
5V
P8
5V
P9
5V
P10
Ground
P11
Device Activity Signal
P12
Ground
P13
Unused (12V)
P14
Unused (12V)
P15
Unused (12V)
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
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. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
2. Software Interface
2.1
Command Set
Table 2-1 summarizes the ATA commands supported by SAFD18S4-M.
Table 2-1:
Code
Command set
Command
Code
Command
E5h
Check Power Mode
F3h
Security Erase Prepare
06h
Data Set Management
F4h
Security Erase Unit
90h
Execute Device Diagnostic
F5h
Security Freeze Lock
E7h
Flush Cache
F1h
Security Set Password
EAh
Flush Cache EXT
F2h
Security Unlock
Ech
Identify Device
70h
Seek
E3h
Idle
Efh
Set Features
E1h
Idle Immediate
C6h
Set Multiple Mode
91h
Initialize Device Parameters
E6h
Sleep
C8h
Read DMA
B0h
SMART
25h
Read DMA EXT
E2h
Standby
C4h
Read Multiple
E0h
Standby Immediate
29h
Read Multiple EXT
Cah
Write DMA
20h
Read Sector
35h
Write DMA EXT
24h
Read Sector EXT
C5h
Write Multiple
40h
Read Verify Sectors
39h
Write Multiple EXT
42h
Read Verify Sectors EXT
30h
Write Sector
10h
Recalibrate
34h
Write Sector EXT
F6h
Security Disable Password
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
3. Flash Management
3.1
Error Correction/Detection
SAFD18S4-M 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.
3.6 S.M.A.R.T.
S.M.A.R.T. is an acronym for Self-Monitoring, Analysis and Reporting Technology, an open standard allowing
disk drives to automatically monitor their own health and report potential problems. It protects the user from
unscheduled downtime by monitoring and storing critical drive performance and calibration parameters. Ideally,
this should allow taking proactive actions to prevent impending drive failure.
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
Apacer devices use the standard SMART command B0h to read data out from the drive to activate our SMART
feature that complies with the ATA/ATAPI-7 specifications. Based on the SFF-8035i Rev. 2.0 specifications,
SMART Attribute IDs shall include Initial bad block count, Bad block count, Spare block count, Maximum erase
count, Average erase count and Power cycle. When the SMART Utility running on the host, it analyzes and
reports the disk status to the host before the device reaches in critical condition.
3.6
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. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
4. Environmental Specifications
4.1
Environments
SAFD18S4-M environmental specifications follow the US Military Standard MIL-STD-810F, as shown in below
table.
Table 4-1 SAFD18S4-M environmental specifications
Environment
Specification
0°C to 70°C (Operating-standard), -40 ~ +85°C (operating-extended)
Temperature
-40°C to 100°C (Non-operating)
Non-operating : Sine wave, 15(G), 10~2000(Hz),
Operating : Random, 7.69(Grms), 20~2000(Hz)
Vibration
Non-operating: Acceleration, 1,500 G, 0.5 ms
Operating: Peak acceleration, 50 G, 11 ms
Shock
Note: extended operating temperature specifications are only available in 16, 32, 64 and 128GB capacities.
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-M is more than 1,000,000 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-M complies with the following standards:
1.2
CE
FCC
RoHS Recast
MIL-STD-810F
SATA II (SATA Rev. 2.6)
Up to ATA/ATAPI-7 ( including S.M.A.R.T.)
Endurance
The endurance of a storage device is predicted by TeraBytes Written based on several factors related to usage,
such as the amount of data written into the drive, block management conditions, and daily workload for the
drive. Thus, key factors, such as Write Amplifications and the number of P/E cycles, can influence the lifespan
of the drive.
Capacity
TeraBytes Written
8 GB
13
16 GB
27
32 GB
54
10
©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
64 GB
108
128 GB
216
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.
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
5. Electrical Characteristics
5.1 Operating Voltage
Table 5-1 lists the supply voltage for SAFD18S4-M.
Table 5-1
SAFD18S4-M operating voltage
Parameter
Conditions
Supply voltage
1.2
5V ±5%
( 4.75-5.25 V)
Power Consumption
Table 5-2 Power consumption (typical)
Capacity
Mode
Active
(mA)
Stand By
(mA)
8 GB
16 GB
32 GB
64 GB
128 GB
200
190
210
280
310
70
76
83
70
86
Note: Power consumptions may vary depending on settings and platforms
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
6. Physical Characteristics
1.2
Dimensions
㎜
Unit:
Tolerance: ± 0.2
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
1.2
Write Protect Switch (optional)
Write Protect switch
Disable
Enable
Note: DIP switch 1, 3, and 4 are reserved for this model.
Description of Apacer Write Protect:
To protect unauthorized data writes, Apacer implements Write Protect that functions as “Virtual Write” that
allows write commands to go through the flash controller and data is temporarily stored. But since the process
is “virtual”, none of the data has been written to the flash. When the host resets or restarts the system, all the
temporarily stored data will disappear. 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. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
7. Product Ordering Information
7.1 Product Code Designations
A P S 184 5 X x x x x – C CM X
Temperature Range
Blank: Standard
W: Extended Temperature
Flash type
Version Control
Capacities:
008G =
016G =
032G =
064G =
128G =
8GB
16GB
32GB
64GB
128GB
Blank: No Write Protect switch
N: Write Protect switch
Solution version
MO-297 Form Factor
Serial ATA Flash Drive
Apacer Product Code
15
©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
1.2
Valid Combinations
SAFD18S4-M
Capacity
8GB
16GB
32GB
Standard
Extended Temperature
APS1845008G-CCM
APS1845016G-CCM
APS1845032G-CCM
-APS1845016G-CCMW
APS1845032G-CCMW
64GB APS1845064G-CCM
128GB APS1845128G-CCM
APS1845064G-CCMW
APS1845128G-CCMW
SAFD18S4-M with Write Protect switch
Capacity
Standard
Extended Temperature
8GB
16GB
32GB
APS1845N008G-CCM
APS1845n016G-CCM
APS1845N032G-CCM
-APS1845N016G-CCMW
APS1845N032G-CCMW
64GB APS1845N064G-CCM
128GB APS1845N128G-CCM
APS1845N064G-CCMW
APS1845N128G-CCMW
Note: Please consult with Apacer sales representatives for availabilities.
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©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
Revision History
Revision
Description
Date
0.1
Preliminary release
11/17/2011
1.0
Official release
11/21/2011
1.1
Updated operating temperatures
11/29/2011
Updated address of our European branch
1.2
Revised capacity information
1/20/2012
1.3
Revised S.M.A.R.T information
03/23/2012
1.4
Updated Product Ordering Information due to firmware upgrade
08/24/2012
1.5
Added Write Protect option
11/01/2012
1.6
Extended operating temperature available for 128GB
12/21/2012
1.7
Model name changed to “Embedded Solid State Drive”
04/03/2013
Pin11 of power segment is defined as “Device Activity Signal”
17
©2013 Apacer Technology Inc.
Rev. 1.7
Embedded Solid State Drive
APS1845Xxxxx-CCMX
Global Presence
Taiwan (Headquarters)
Apacer Technology Inc.
th
4 Fl., 75 Hsin Tai Wu Rd., Sec.1
Xizhi, New Taipei City
Taiwan 221
R.O.C.
Tel: +886-2-2698-2888
Fax: +886-2-2698-2889
amtsales@apacer.com
U.S.A.
Apacer Memory America, Inc.
386 Fairview Way, Suite102,
Milpitas, CA 95035
Tel: 1-408-518-8699
Fax: 1-408-935-9611
sa@apacerus.com
Japan
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
Europe
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
China
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
India
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
18
©2013 Apacer Technology Inc.
Rev. 1.7
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