RoHS Compliant
CFast 2.0
SS220-CFast 2.0 Product Specifications
October 4, 2018
Version 1.3
Apacer Technology Inc.
1F, No.32, Zhongcheng Rd., Tucheng Dist., New Taipei City, Taiwan, R.O.C
Tel: +886-2-2267-8000
www.apacer.com
Fax: +886-2-2267-2261
Specifications Overview:
Standard Serial ATA Interface
–
SATA Revision 3.1 compliance
–
SATA 6.0 Gbps interface speed
Standard: 0°C to 70°C
–
Backward compatible with SATA 1.5 and
3.0 Gbps interfaces
Extended: -40°C to 85°C
–
ATA-compatible command set
–
–
Temperature Range
–
3.3 V ± 5%
4, 8, 16, 32, 64 GB
Storage: -40°C to 100°C
Supply Voltage
Capacity
–
Operating:
Performance*
–
Sequential read: Up to 555 MB/sec
–
Sequential write: Up to 445 MB/sec
–
Random read (4K): Up to 80,000 IOPS
–
Random write (4K): Up to 78,000 IOPS
–
Active mode: 405 mA
–
Idle mode: 150 mA
Connector Type
–
Flash Management
Power Consumption*
7 + 17 pin female connector
Shock & Vibration**
–
Built-in hardware ECC
–
Shock: 1,500 G
–
Global Wear Leveling
–
Vibration: 15 G
–
Flash bad-block management
–
Flash Translation Layer: Page Mapping
–
S.M.A.R.T.
–
Power Failure Management
–
Device Sleep (optional)
–
ATA Secure Erase
–
TRIM
NAND Flash Type: SLC
MTBF: >2,000,000 hours
Endurance (in Terabytes Written: TBW)
–
4 GB: 186 TBW
–
8 GB: 267 TBW
–
16 GB: 535 TBW
–
32 GB: 1,329 TBW
–
64 GB: 2,659 TBW
RoHS Compliant
*Varies from capacities. The values for performances and power consumptions presented are typical and may vary depending
on flash configurations or platform settings.
**Non-operating
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© 2018 Apacer Technology Inc.
Table of Contents
1. General Descriptions ........................................................................3
2. Functional Block ...............................................................................3
3. Pin Assignments ................................................................................4
4. Product Specifications......................................................................6
4.1 Capacity ......................................................................................................................................... 6
4.2 Performance .................................................................................................................................. 6
4.3 Environmental Specifications ........................................................................................................ 7
4.4 Mean Time Between Failures (MTBF) .......................................................................................... 7
4.5 Certification and Compliance ........................................................................................................ 7
4.6 Endurance ..................................................................................................................................... 8
5. Flash Management ............................................................................9
5.1 Error Correction/Detection ............................................................................................................. 9
5.2 Bad Block Management ................................................................................................................ 9
5.3 Global Wear Leveling .................................................................................................................... 9
5.4 Flash Translation Layer – Page Mapping...................................................................................... 9
5.5 ATA Secure Erase ......................................................................................................................... 9
5.6 Power Failure Management ........................................................................................................ 10
5.7 TRIM ............................................................................................................................................ 10
5.8 DEVSLP (DevSleep or DEVSLP) Mode (optional) ...................................................................... 10
5.9 SATA Power Management .......................................................................................................... 11
6. Software Interface ......................................................................... 12
6.1 Command Set .............................................................................................................................. 12
6.2 S.M.A.R.T. ................................................................................................................................... 12
7. Electrical Specifications ............................................................... 14
7.1 Operating Voltage........................................................................................................................ 14
7.2 Power Consumption .................................................................................................................... 14
8. Physical Characteristics ................................................................ 15
9. Product Ordering Information ........................................................ 16
9.1 Product Code Designations ......................................................................................................... 16
9.2 Valid Combinations ...................................................................................................................... 17
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© 2018 Apacer Technology Inc.
1. General Descriptions
Apacer SS220-CFast 2.0 is the latest enhancement of conventional CFast form factor that delivers
various technological advantages. This new flash memory card comes with SATA 6.0 Gbps interface
for higher performance and consists of SATA-based 7-pin signal segment and 17-pin for power and
control purposes. For data efficiency, the internal controlling unit of the SS220-CFast 2.0 is
engineered with DRAM for enhanced random performance which achieves data transfer rates up to
555 MB/s in sequential access and 80,000 IOPS in 4KB random access. In addiation, Apacer CFast
cards come with S.M.A.R.T. for lifetime monitoring and customization support if write protection is
required. Apacer SS220-CFast 2.0 guarantees reliability of applications in harsh environments by
implementing intelligent Flash Management algorithms and Error Correction.
2. Functional Block
Apacer SS220-CFast 2.0 includes a single-chip SATA 6.0 Gbps and the flash media. The controller
integrates the flash management unit to support multi-channel, multi-bank flash arrays. Figure 2-1
shows the functional block diagram.
Host
Interface
SATAI/O & PHY
SATA 6.0
Gbps Interface
Controller
Flash data bus & ECC engine
DDR3
DRAM
Flash
Flash
Figure 2-1 Functional Block Diagram
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© 2018 Apacer Technology Inc.
3. Pin Assignments
Table 3-1 describes SS220-CFast 2.0 signal segment, and Table 3-2, its power segment.
Figure 3-1 Pin Assignment
Table 3-1 Signal Segment
Pin
Definition
Description
S1
GND
Ground
S2
A+
S3
A-
SATA Differential
Signal Pair A
S4
GND
Ground
S5
B-
S6
B+
SATA Differential
Signal Pair B
S7
GND
Ground
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Table 3-2 Power Segment
Pin
Definition
Type
Description
PC1
CDI
Input
Card Detect In
PC2
PGND
Device GND
Device GND
PC3
DEVSLP*
DEVSLP card input
DEVSLP enable
PC4
Reserved
PC5
Reserved
PC6
Reserved
PC7
PGND
Device GND
Device GND
PC8
LED1
LED Output
Power indicator
PC9
LED2
LED Output
Access indicator
PC10
Reserved
PC11
Write Protect**
PC12
IFDet
GND
Card output, connect to PGND on card
PC13
PWR
3.3V
Device power (3.3V)
PC14
PWR
w
PGND
3.3V
Device power (3.3V)
PC15
Device GND
Device GND
PC16
PGND
Device GND
Device GND
PC17
CDO
Output
Card Detect Out
*Optional
**Enabled by adjusting the pin “PC11” from high to low active
Notes about Write Protect:
Apacer implements the Virtual Write scheme that allows write commands to go through the flash controller and data is
temporarily stored, but no data has been actually written into the flash. Once the host resets or restarts the system, all the
temporarily stored data will disappear and nowhere to be found in the drive. Since the Virtual Write scheme runs at device level,
it requires no software or driver installation and is independent from the host OS.
Figure 3-2 SATA Cable / Connector Connection Diagram
The connector on the left represents the Host with TX/RX differential pairs connected to a cable while
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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4. Product Specifications
4.1 Capacity
Capacity specifications of SS220-CFast 2.0 are available as shown in Table 4-1. It lists the specific
capacity and the default numbers of heads, sectors and cylinders for each product line.
Table 4-1 Capacity Specifications
Capacity
Total bytes*
Cylinders
Heads
Sectors
Max LBA
4 GB
4,011,614,208
7,773
16
63
7,835,184
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
*Display of total bytes varies from file systems, which means not all of the bytes can be used for storage.
**Notes: 1 GB = 1,000,000,000 bytes; 1 sector = 512 bytes.
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.
4.2 Performance
Performance of SS220-CFast 2.0 is listed below in Table 4-2.
Table 4-2 Performance Specifications
Capacity
4 GB
8 GB
16 GB
32 GB
64 GB
Sequential Read* (MB/s)
65
260
455
555
555
Sequential Write* (MB/s)
55
100
200
390
445
Random Read IOPS** (4K)
15,000
33,000
62,000
79,000
80,000
Random Write IOPS** (4K)
3,000
6,000
30,000
64,000
78,000
Performance
Note:
Results may differ from various flash configurations or host system setting.
*Sequential performance is based on CrystalDiskMark 5.2.1 with file size 1,000MB.
**Random performance measured using IOMeter with Queue Depth 32.
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© 2018 Apacer Technology Inc.
4.3 Environmental Specifications
Environmental specifications of SS220-CFast 2.0 product are shown in Table 4-3.
Table 4-3 Environmental Specifications
Environment
Temperature
Vibration
Shock
Specifications
0°C to 70°C (Standard); -40°C to 85°C (Extended)
-40°C to 100°C (Non-operating)
Non-operating: Sine wave, 15(G), 10~2000(Hz),
Operating: Random, 7.69(GRMS), 20~2000(Hz)
Non-operating: Acceleration, 1,500 G, 0.5 ms
Operating: Peak acceleration, 50 G, 11 ms
Note: This Environmental Specification table indicates the conditions for testing the device. Real world usages may affect the
results.
4.4 Mean Time Between Failures (MTBF)
Mean Time Between Failures (MTBF) is predicted based on reliability data for the individual
components in SS220-CFast 2.0. The prediction result for SS220-CFast 2.0 is more than 2,000,000
hours.
Note: The MTBF is predicated and calculated based on “Telcordia Technologies Special Report, SR332, Issue 2” method.
4.5 Certification and Compliance
SS220-CFast 2.0 complies with the following standards:
CE
FCC
RoHS
MIL-STD-810F
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© 2018 Apacer Technology Inc.
4.6 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.
Table 4-4 Endurance Specifications
Capacity
TeraBytes Written
4 GB
186
8 GB
267
16 GB
535
32 GB
1,329
64 GB
2,659
Note:
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) = 1,024 GB.
This estimation complies with JEDEC JESD-219, enterprise endurance workload of random data
with payload size distribution.
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5. Flash Management
5.1 Error Correction/Detection
SS220-CFast 2.0 implements a hardware ECC scheme, based on the BCH algorithm. It can detect
and correct up to 72 bits error in 1K bytes.
5.2 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, page 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.
5.3 Global 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. Global wear leveling is an important
mechanism that levels out the wearing of all blocks so that the wearing-down of all blocks can be
almost evenly distributed. This will increase the lifespan of SSDs.
5.4 Flash Translation Layer – Page Mapping
Page mapping is an advanced flash management technology whose essence lies in the ability to
gather data, distribute the data into flash pages automatically, and then schedule the data to be
evenly written. Page-level mapping uses one page as the unit of mapping. The most important
characteristic is that each logical page can be mapped to any physical page on the flash memory
device. This mapping algorithm allows different sizes of data to be written to a block as if the data is
written to a data pool and it does not need to take extra operations to process a write command. Thus,
page mapping is adopted to increase random access speed and improve SSD lifespan, reduce block
erase frequency, and achieve optimized performance and lifespan.
5.5 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.
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5.6 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.
5.7 TRIM
TRIM is a SATA command that helps improve the read/write performance and efficiency of solid-state
drives (SSD). The command enables the host operating system to inform SSD controller which blocks
contain invalid data, mostly because of the erase commands from host. The invalid will be discarded
permanently and the SSD will retain more space for itself.
5.8 DEVSLP (DevSleep or DEVSLP) Mode (optional)
Device Sleep is a feature that allows SATA devices to enter a low power mode by designating pin 3
as DEVSLP signal with an aim to reducing power consumption.
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5.9 SATA Power Management
By complying with SATA 6.0 Gb/s specifications, the SSD supports the following SATA power saving
modes:
ACTIVE: PHY ready, full power, Tx & Rx operational
PARTIAL: Reduces power, resumes in under 10 µs (microseconds)
SLUMBER: Reduces power, resumes in under 10 ms (milliseconds)
HIPM: Host-Initiated Power Management
DIPM: Device-Initiated Power Management
AUTO-SLUMBER: Automatic transition from partial to slumber.
Device Sleep (DevSleep or DEVSLP): PHY powered down; power consumption ≦ 5 mW; host
assertion time ≦ 10 ms; exit timeout from this state ≦ 20 ms (unless specified otherwise in
SATA Identify Device Log).
Note:
1. The behaviors of power management features would depend on host/device settings.
2. Device Sleep mode is optional depending on product ordering selections.
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© 2018 Apacer Technology Inc.
6. Software Interface
6.1 Command Set
Table 6-1 Command Set
Code
Command
Code
Command
E5h
Check Power Mode
F6h
Security Disable Password
90h
Execute Diagnostics
F3h
Security Erase Prepare
E7h
Flush Cache
F4h
Security Erase Unit
ECh
Identify Device
F5h
Security Freeze Lock
E3h
Idle
F1h
Security Set Password
E1h
Idle Immediate
F2h
Security Unlock
91h
Initialize Device Parameters
7Xh
Seek
C8h
Read DMA
EFh
Set Features
25h
Read DMA EXT
C6h
Set Multiple Mode
60h
Read FPDMA Queued
E6h
Sleep
47h
Read Log DMA EXT
B0h
S.M.A.R.T.
2Fh
Read Log EXT
E2h
Standby
C4h
Read Multiple
E0h
Standby Immediate
20 or 21h
Read Sector(s)
CAh
Write DMA
40 or 41h
Read Verify Sector(s)
35h
Write DMA EXT
10h
Recalibrate
61h
Write FPDMA Queued
57h
Write Log DMA EXT
3Fh
Write Log EXT
C5h
Write Multiple
30h or 31h
Write Sector(s)
6.2 S.M.A.R.T.
S.M.A.R.T. is an abbreviation for Self-Monitoring, Analysis and Reporting Technology, a selfmonitoring 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.
Apacer memory products come with S.M.A.R.T. commands and subcommands for users to obtain
information of drive status and to predict potential drive failures. Users can take advantage of the
following commands/subcommands to monitor the health of the drive.
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© 2018 Apacer Technology Inc.
Code
SMART Subcommand
D0h
READ DATA
D1h
READ ATTRIBUTE THRESHOLDS
D2h
Enable/Disable Attribute Autosave
D4h
Execute Off-line Immediate
D5h
Read Log (optional)
D6h
Write Log (optional)
D8h
Enable Operations
D9h
Disable operations
DAh
Return Status
General SMART attribute structure
Byte
Description
0
ID (Hex)
1–2
Status flag
3
Value
4
Worst
5*-11
Raw Data
*Byte 5: LSB
SMART attribute ID list
ID (Hex)
Attribute Name
9 (0x09)
Power-on hours
12 (0x0C)
Power cycle count
163 (0xA3)
Max. erase count
164 (0xA4)
Avg. erase count
166 (0xA6)
Total later bad block count
167 (0xA7)
SSD Protect Mode (vendor specific)
168 (0xA8)
SATA PHY Error Count
175 (0xAF)
Bad Cluster Table Count
192 (0xC0)
Unexpected Power Loss Count
194 (0xC2)
Temperature
241 (0xF1)
Total sectors of write
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© 2018 Apacer Technology Inc.
7. Electrical Specifications
7.1 Operating Voltage
Table 7-1 lists the supply voltage for SS220-CFast 2.0.
Table 7-1 Operating Range
Parameter
Power Supply
Symbol
Min
Type
Max
Units
Vcc
3.135
3.3
3.465
V
7.2 Power Consumption
Table 7-2 lists the power consumption for SS220-CFast 2.0.
Table 7-2 Power Consumption
Capacity
4 GB
8 GB
16 GB
32 GB
64 GB
Active (mA)
265
210
270
360
405
Idle (mA)
150
125
125
125
120
Mode
Note:
*All values are typical and may vary depending on flash configurations or host system settings.
**Active power is an average power measurement performed using CrystalDiskMark with 128KB sequential read/write transfers.
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© 2018 Apacer Technology Inc.
8. Physical Characteristics
Unit: ㎜
Figure 8-1 Physical Dimensions
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© 2018 Apacer Technology Inc.
9. Product Ordering Information
9.1 Product Code Designations
AP CFA xxxG GDA X – X 5X T
Flash Type
FW Version
5E: Without DEVSLP
5F: With DEVSLP
Operating Temperature Range
Blank: Standard Temperature
W: Extended Temperature
N: Standard
D: Hi-Speed
CTL Type
Capacity
004G = 4GB
008G = 8GB
016G = 16GB
032G = 32GB
064G = 64GB
Model Name
Apacer Product Code
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© 2018 Apacer Technology Inc.
9.2 Valid Combinations
9.2.1 Without DEVSLP
Capacity
Standard Temperature
Extended Temperature
4GB
APCFA004GGDAN-5ET
APCFA004GGDAN-W5ET
8GB
APCFA008GGDAD-5ET
APCFA008GGDAD-W5ET
16GB
APCFA016GGDAD-5ET
APCFA016GGDAD-W5ET
32GB
APCFA032GGDAD-5ET
APCFA032GGDAD-W5ET
64GB
APCFA064GGDAD-5ET
APCFA064GGDAD-W5ET
9.2.2 With DEVSLP
Capacity
Standard Temperature
Extended Temperature
4GB
APCFA004GGDAN-5FT
APCFA004GGDAN-W5FT
8GB
APCFA008GGDAD-5FT
APCFA008GGDAD-W5FT
16GB
APCFA016GGDAD-5FT
APCFA016GGDAD-W5FT
32GB
APCFA032GGDAD-5FT
APCFA032GGDAD-W5FT
64GB
APCFA064GGDAD-5FT
APCFA064GGDAD-W5FT
Note: Valid combinations are those products in mass production or will be in mass production.
Consult your Apacer sales representative to confirm availability of valid combinations and to
determine availability of new combinations.
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© 2018 Apacer Technology Inc.
Revision History
Revision
Description
Date
1.0
Official release
7/17/2018
1.1
Added 4GB support
8/9/2018
1.2
1.3
- Added Endurance to Specifications Overview
- Added 4.6 Endurance
Updated 4GB valid combinations at 9. Product Ordering
Information
9/6/2018
10/4/2018
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© 2018 Apacer Technology Inc.
Global Presence
Taiwan (Headquarters)
U.S.A.
Apacer Technology Inc.
1F., No.32, Zhongcheng Rd., Tucheng Dist.,
New Taipei City 236, Taiwan R.O.C.
Tel: 886-2-2267-8000
Fax: 886-2-2267-2261
amtsales@apacer.com
Apacer Memory America, Inc.
46732 Lakeview Blvd., Fremont, CA 94538
Tel: 1-408-518-8699
Fax: 1-510-249-9551
sa@apacerus.com
Japan
Europe
Apacer Technology Corp.
6F, Daiyontamachi Bldg., 2-17-12, Shibaura, Minato-Ku,
Tokyo, 108-0023, 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: 31-40-290-0686
sales@apacer.nl
China
India
Apacer Electronic (Shanghai) Co., Ltd
Room D, 22/FL, No.2, Lane 600, JieyunPlaza,
Tianshan RD, Shanghai, 200051, China
Tel: 86-21-6228-9939
Fax: 86-21-6228-9936
sales@apacer.com.cn
Apacer Technologies Pvt Ltd,
th
1874, South End C Cross, 9 Block Jayanagar,
Bangalore-560069, India
Tel: 91-80-4152-9061/62
Fax: 91-80-4170-0215
sales_india@apacer.com
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