RoHS Recast Compliant
Industrial microSD 3.0
microSDHC H1-M Product Specifications
(WD 1Znm)
May 31, 2022
Version 1.0
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:
Fully Compatible with SD Card
Association Specifications
–
Part 1, Physical Layer Specification, Ver
3.01 Final
–
Part 2, File System Specifications, Ver
3.00
–
Capacity
–
Part 3, Security Specifications, Ver 3.00
Final
–
Wide: -40°C to 85°C
–
Operating Voltage: 2.7V ~ 3.6V
Power Consumption1
–
Operating: 120 mA
–
Standby: 220 µA
Performance1
Sequential read: Up to 80 MB/sec
–
Sequential write: Up to 65 MB/sec
–
Random read (4K): Up to 1,600 IOPS
–
Random write (4K): Up to 70 IOPS
Storage: -40°C to 85°C
8, 16 GB
–
Operating:
Standard: -25°C to 85°C
Temperature Range
Flash Management
Bus Speed Mode: Support Class 10 with UHS-I2
–
DS: Default Speed up to 25MHz 3.3V signaling
–
HS: High Speed up to 50MHz 3.3V signaling
–
SDR12: SDR up to 25MHz 1.8V signaling
–
SDR25: SDR up to 50MHz 1.8V signaling
–
SDR50: SDR up to 100MHz 1.8V signaling
–
Built-in advanced ECC algorithm
–
SDR104: SDR up to 208MHz 1.8V signaling
–
Global Wear Leveling
–
DDR50: DDR up to 50MHz 1.8V signaling
–
Flash bad-block management
–
S.M.A.R.T.
–
Power Failure Management
–
SMART Read RefreshTM
NAND Flash Type: MLC
SD-Protocol Compatible
Supports SD SPI Mode
Backward Compatible with 2.0
Endurance (in Terabytes Written: TBW)
8 GB: 4.13 TBW
–
16 GB: 8.27 TBW
Physical Dimensions
–
–
15mm (L) x 11mm (W) x 1mm (H)
RoHS Recast Compliant
Notes:
1. Performance values presented here are typical and measured based on USB 3.0 card reader. The results may vary
depending on settings and platforms.
2. Timing in 1.8V signaling is different from that of 3.3V signaling. Operation mode selection command is complaint with SD
3.0, referring to SDA’s Part 1, Physical Layer Specification, Ver 3.01 (Section 3.9)
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© 2022 Apacer Technology Inc.
Table of Contents
1. General Description ..........................................................................3
1.1 Functional Block .......................................................................................................................... 3
1.2 Flash Management ...................................................................................................................... 4
1.2.1 Bad Block Management .......................................................................................................... 4
1.2.2 Powerful ECC Algorithms ....................................................................................................... 4
1.2.3 Global Wear Leveling ............................................................................................................. 4
1.2.4 S.M.A.R.T. .............................................................................................................................. 4
1.2.5 Power Failure Management.................................................................................................... 4
1.2.6 SMART Read RefreshTM ......................................................................................................... 4
2. Product Specifications ......................................................................5
2.1 Card Architecture ........................................................................................................................ 5
2.2 Pin Assignment ........................................................................................................................... 5
2.3 Capacity ........................................................................................................................................ 6
2.4 Performance ................................................................................................................................. 6
2.5 Electrical ....................................................................................................................................... 6
2.6 Endurance .................................................................................................................................... 7
3. Physical Characteristics ...................................................................8
3.1 Physical Dimensions ................................................................................................................... 8
3.2 Durability Specifications........................................................................................................... 10
4. AC Characteristics ..........................................................................11
4.1 microSD Interface Timing (Default) ......................................................................................... 11
4.2 microSD Interface Timing (High-Speed Mode) ....................................................................... 12
4.3 microSD Interface Timing (SDR12, SDR25, SDR50 and SDR104 Modes) ............................ 13
4.3.1 Input ...................................................................................................................................... 13
4.3.2 Output ................................................................................................................................... 14
4.4 microSD Interface Timing (DDR50 Mode) ............................................................................... 15
5. S.M.A.R.T. ........................................................................................17
5.1 Direct Host Access to SMART Data via SD General Command (CMD56) ............................ 17
5.2 Process for Retrieving SMART Data ....................................................................................... 17
6. Product Ordering Information .........................................................20
6.1 Product Code Designations ..................................................................................................... 20
6.2 Valid Combinations ................................................................................................................... 21
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© 2022 Apacer Technology Inc.
1. General Description
The micro Secure Digital (microSD) card version 3.0 is fully compliant to the specification released by
SD Card Association. The Command List supports [Part 1 Physical Layer Specification Ver3.01 Final]
definitions. Card Capacity of Non-secure Area, Secure Area Supports [Part 3 Security Specification
Ver3.00 Final] Specifications.
The microSD 3.0 card comes with 8-pin interface, designed to operate at optimal performance. It can
alternate communication protocol between the SD mode and SPI mode. It performs data error
detection and correction with very low power consumption.
Apacer Industrial micro Secure Digital 3.0 card is ideal for its high performance, good reliability and
wide compatibility. Not to mention that it’s well adapted for hand-held applications in semiindustrial/medical markets already. The new microSD 3.0 card is capable of delivering better
performance and P/E cycles.
1.1 Functional Block
The microSD contains a card controller and a memory core for the SD standard interface.
Figure 1-1 Functional Block Diagram
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1.2 Flash Management
1.2.1 Bad Block Management
Bad blocks are blocks that include one or more invalid bits, and their reliability is not guaranteed.
Blocks that are identified and marked as bad by the manufacturer are referred to as “Initial Bad
Blocks”. Bad blocks that are developed during the lifespan of the flash are named “Later Bad Blocks”.
Apacer implements an efficient bad block management algorithm to detect the factory-produced bad
blocks and manages any bad blocks that appear with use. This practice further prevents data being
stored into bad blocks and improves the data reliability.
1.2.2 Powerful ECC Algorithms
Flash memory cells will deteriorate with use, which might generate random bit errors in the stored
data. Thus, the microSD card applies the BCH ECC Algorithm, which can detect and correct errors
occur during read process, ensure data been read correctly, as well as protect data from corruption.
1.2.3 Global Wear Leveling
NAND Flash devices can only undergo a limited number of program/erase cycles, and in most cases,
the flash media are not used evenly. If some area get updated more frequently than others, the
lifetime of the device would be reduced significantly. Thus, Global Wear Leveling technique is applied
to extend the lifespan of NAND Flash by evenly distributing writes and erase cycles across the media.
Apacer provides Global Wear Leveling algorithm, which can efficiently spread out the flash usage
through the whole flash media area. Moreover, by implementing Global Wear Leveling algorithm, the
life expectancy of the NAND Flash is greatly improved.
1.2.4 S.M.A.R.T.
SMART, an acronym for Self-Monitoring, Analysis and Reporting Technology, is a special function
that allows a memory device to automatically monitor its health. Apacer provides a program named
SmartInfo Tool to observe Apacer’s SD and microSD cards. Note that this tool can only support
Apacer’s industrial SD and microSD cards. This tool will display firmware version, endurance life ratio,
good block ratio, and so forth.
1.2.5 Power Failure Management
Apacer industrial SD and microSD cards provide complete data protection mechanism during every
abnormal power shutdown situation, such as power failure at programming data, updating system
tables, erasing blocks, etc. Apacer Power-Loss Protection mechanism includes:
Maintaining data correctness and increasing the reliability of the data stored in the NAND Flash
memory.
Protecting F/W table and the data written to flash from data loss in the event of power off.
1.2.6 SMART Read RefreshTM
Apacer’s SMART Read Refresh plays a proactive role in avoiding read disturb errors from occurring to
ensure health status of all blocks of NAND flash. Developed for read-intensive applications in
particular, SMART Read Refresh is employed to make sure that during read operations, when the
read operation threshold is reached, the data is refreshed by re-writing it to a different block for
subsequent use.
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© 2022 Apacer Technology Inc.
2. Product Specifications
2.1 Card Architecture
Figure 2-1 Card Architecture
2.2 Pin Assignment
Table 2-1 Pin Descriptions
SD Mode
SPI Mode
Pin
Name
Description
Name
Description
1
DAT2
Data line[bit 2]
Reserved
2
CD/DAT3
Card Detect/Data line [bit 3]
CS
Chip select
3
CMD
Command/Response
DI
Data in
4
VDD
Supply voltage
VDD
Supply voltage
5
CLK
Clock
SCLK
Clock
6
VSS
Supply voltage ground
VSS
Supply voltage ground
7
DAT0
Data line[bit 0]
DO
Data out
8
DAT1
Data line[bit 1]
Reserved
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2.3 Capacity
The following table shows the specific capacity for the SD 3.0 card.
Table 2-2 Capacity Specifications
Capacity
Total bytes
8 GB
7,960,788,992
16 GB
16,013,852,672
Note: Total bytes are viewed under Windows operating system and were measured by SD format too.
2.4 Performance
Performances of the SD 3.0 card are shown in the table below.
Table 2-3 Performance Specifications
Capacity
8 GB
16 GB
Sequential Read (MB/s)
80
80
Sequential Write (MB/s)
32
65
Random Read IOPS (4K)
1,500
1,600
Random Write IOPS (4K)
44
70
Performance
Notes:
Results may differ from various flash configurations or host system setting.
Sequential read/write is based on CrystalDiskMark 8.0.4 with file size 1,000MB.
Random read/write is measured using IOMeter with Queue Depth 32.
2.5 Electrical
Table 2-4 Operating Voltages
Symbol
Parameter
Min.
Max.
Unit
VDD
Power Supply Voltage
2.7
3.6
V
Table 2-5 Power Consumption
Capacity
8 GB
16 GB
Operating (mA)
85
120
Standby (µA)
190
220
Mode
Notes:
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.
Power is measured based on USB 3.0 card reader.
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© 2022 Apacer Technology Inc.
2.6 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 2-6 Endurance Specifications
Capacity
TeraBytes Written
8 GB
4.13
16 GB
8.27
Notes:
This estimation complies with Apacer internal workload.
Flash vendor guaranteed MLC P/E cycle: 3K
WAF may vary from capacity, flash configurations and writing behavior on each platform.
1 Terabyte = 1024 GB
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3. Physical Characteristics
3.1 Physical Dimensions
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3.2 Durability Specifications
Table 3-1 Durability Specifications
Item
Temperature
Specifications
-25°C to 85°C (Standard)
-40°C to 85°C (Wide)
-40°C to 85°C (Storage)
Shock
1,500G, 0.5ms
Vibration
20Hz~80Hz/1.52mm (frequency/displacement)
80Hz~2000Hz/20G (frequency/displacement)
X, Y, Z axis/60mins each
Drop
150cm free fall, 6 face of each
Bending
≧10N, hold 1min/5times
Torque
0.1N-m or 2.5deg, hold 5min/5times
Salt Spray
Concentration: 3% NaCl at 35°C (storage for 24 hours)
Waterproof
JIS IPX7 compliance
Water temperature 25°C
Water depth: the lowest point of unit is locating 1000mm below surface
(storage for 30 mins)
X-Ray Exposure
0.1 Gy of medium-energy radiation (70 KeV to 140 KeV, cumulative dose per
year) to both sides of the card (storage for 30 mins)
Durability
10,000 times mating cycle
ESD
Pass
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© 2022 Apacer Technology Inc.
4. AC Characteristics
4.1 microSD Interface Timing (Default)
Symbol
Parameter
Min
Max
Unit
Remark
Clock CLK (All values are referred to min(VIH) and max(VIL))
fPP
Clock frequency Data Transfer Mode
0
25
MHz
fOD
Clock frequency Identification Mode
0*/100
400
kHz
tWL
Clock low time
10
ns
tWH
Clock high time
10
ns
tTLH
Clock rise time
10
ns
tTHL
Clock fall time
10
ns
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Inputs CMD, DAT (referenced to CLK)
tISU
Input setup time
5
ns
tIH
Input hold time
5
ns
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Outputs CMD, DAT (referenced to CLK)
tODLY
Output Delay time during Data Transfer Mode
0
14
ns
tODLY
Output Delay time during Identification Mode
0
50
ns
CL ≤ 40 pF
(1 card)
CL ≤ 40 pF
(1 card)
*0Hz means to stop the clock. The given minimum frequency range is for cases that require the clock to be
continued.
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4.2 microSD Interface Timing (High-Speed Mode)
Symbol
Parameter
Min
Max
Unit
Remark
Clock CLK (All values are referred to min(VIH) and max(VIL))
fPP
Clock frequency Data Transfer Mode
0
50
MHz
tWL
Clock low time
7
ns
tWH
Clock high time
7
ns
tTLH
Clock rise time
3
ns
tTHL
Clock fall time
3
ns
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Inputs CMD, DAT (referenced to CLK)
tISU
Input setup time
6
ns
tIH
Input hold time
2
ns
Ccard ≤ 10 pF
(1 card)
Ccard≤ 10 pF
(1 card)
Outputs CMD, DAT (referenced to CLK)
tODLY
Output Delay time during Data Transfer Mode
TOH
Output Hold Time
CL
Total System capacitance of each line*
14
2.5
ns
ns
40
pF
CL ≤ 40 pF
(1 card)
CL ≤ 15 pF
(1 card)
CL ≤ 15 pF
(1 card)
*In order to satisfy severe timing, host shall run on only one card
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4.3 microSD Interface Timing (SDR12, SDR25, SDR50 and SDR104
Modes)
4.3.1 Input
Clock Signal Timing
Symbol
Min
Max
Unit
Remark
tCLK
4.80
-
ns
208MHz (Max.), Between rising edge, VCT = 0.975V
tCR, tCF < 0.96ns (max.) at 208MHz, CCARD=10pF
tCR, tCF
-
0.2 tCLK
ns
Clock Duty
30
70
%
tCR, tCF < 2.00ns (max.) at 100MHz, CCARD=10pF
The absolute maximum value of tCR, tCF is 10ns
regardless of clock frequency.
SDR50 and SDR104 Input Timing
Card Input Timing
Symbol
Min
Max
Unit
SDR104 Mode
tIS
1.40
-
ns
CCARD = 10pF, VCT = 0.975V
tIH
0.8
-
ns
CCARD = 5pF, VCT = 0.975V
Symbol
Min
Max
Unit
SDR50 Mode
tIS
3.00
-
ns
CCARD = 10pF, VCT = 0.975V
tIH
0.8
-
ns
CCARD = 5pF, VCT = 0.975V
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4.3.2 Output
Output Timing of Fixed Data Window
Symbol
Min
Max
Unit
Remark
tODLY
-
7.5
ns
tCLK ≥10.0ns, CL=30pF, using driver Type B, for SDR50.
tODLY
-
14
ns
tCLK ≥20.0ns, CL=40pF, using driver Type B, for SDR25 and SDR12
TOH
1.5
-
ns
Hold time at the tODLY (min.). CL=15pF
Output (SDR104 mode)
Symbol
Min
Max
Unit
tOP
0
2
UI
Card Output Phase
ps
Delay variable due to temperature change after tuning
UI
tODW = 2.88ns at 208MHz
△tOP
-350
tODW
0.60
+1550
-
Remark
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4.4 microSD Interface Timing (DDR50 Mode)
Clock Signal Timing
Symbol
Min
Max
Unit
Remark
tCLK
20
-
ns
50MHz (Max.), Between rising edge
tCR, tCF
-
0.2 tCLK
ns
tCR, tCF < 4.00ns (max.) at 50MHz, CCARD=10pF
Clock Duty
45
55
%
Timing Diagram DAT Inputs/Outputs Referenced to CLK in DDR50 Mode
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Bus Timings – Parameters Values (DDR50 Mode)
Symbol
Parameter
Min
Max
Unit
Remark
Input CMD (referenced to CLK rising edge)
tISU
Input setup time
6
-
ns
tIH
Input hold time
0.8
-
ns
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Output CMD (referenced to CLK rising edge)
tODLY
Output Delay time during Data Transfer Mode
-
13.7
ns
TOH
Output Hold time
1.5
-
ns
CL ≤ 30 pF
(1 card)
CL ≥ 15 pF
(1 card)
Inputs DAT (referenced to CLK rising and falling edges)
tISU2x
Input setup time
3
-
ns
tIH2x
Input hold time
0.8
-
ns
Ccard ≤ 10 pF
(1 card)
Ccard ≤ 10 pF
(1 card)
Outputs DAT (referenced to CLK rising and falling edges)
tODLY2x
Output Delay time during Data Transfer Mode
-
7.0
ns
TOH2x
Output Hold time
1.5
-
ns
CL ≤ 25 pF
(1 card)
CL ≥ 15 pF
(1 card)
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5. S.M.A.R.T.
5.1 Direct Host Access to SMART Data via SD General Command
(CMD56)
CMD 56 is structured as a 32-bit argument. The implementation of the general purpose functions will
arrange the CMD56 argument into the following format:
Bit [0]: Indicates Read Mode when bit is set to [1] or Write Mode when bit is cleared [0].
Depending on the function, either Read Mode or Write Mode can be used.
Bit [7:1]: Indicates the index of the function to be executed:
Read Mode: Index = 0x10 Get SMART Command Information
Write Mode: Index = 0x08 Pre-Load SMART Command Information
Bit [15:8]: Function argument #1 (1-byte)
Bit [23:16]: Function argument #2 (1-byte)
Bit [31:24]: Function argument #3 (1-byte)
5.2 Process for Retrieving SMART Data
Retrieving SMART data requires the following two commands executed in sequence and in
accordance with the SD Association standard flowchart for CMD56 (see below).
Step 1: Write Mode – [0x08] Pre-Load SMART Command Information
Sequence
Pre-Load
SMART
Command
Information
Command
CMD56
Argument
Expected Data
“0” (Write Mode)
“0001 000”
(Index = 0x08)
[8:511] All ‘0’ (Reserved)
No expected data
[0]
[1:7]
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© 2022 Apacer Technology Inc.
Step 2: Read Mode – [0x10] Get SMART Command Information
Sequence
Get SMART
Command
Information
Command
CMD56
Argument
Expected Data
1 sector (512 bytes) of response data
byte[0-8] Flash ID
byte[9-10] IC Version
byte[11-12] FW Version
byte[13] Reserved
byte[14] CE Number
byte[15] Reserved
byte[16-17] Bad Block Replace Maximum
byte[18] Reserved
byte[32-63] Bad Block count per Die
byte[64-65] Good Block Rate(%)
byte[66-79] Reserved
byte[80-83] Total Erase Count
[0]
“1” (Read Mode) byte[84-95] Reserved
[1:7] “0010 000”
byte[96-97] Endurance (Remain Life) (%)
(Index = 0x10)
byte[98-99] Average Erase Count – L*
[8:31] All ‘0’ (Reserved) byte[100-101] Minimum Erase Count – L*
byte[102-103] Maximum Erase Count – L*
byte[104-105] Average Erase Count – H*
byte[106-107] Minimum Erase Count – H*
byte[108-109] Maximum Erase Count – H*
byte[110-111] Reserved
byte[112-115] Power Up Count
byte[116-127] Reserved
byte[128-129] Abnormal Power Off Count
byte[130-159] Reserved
byte[160-161] Total Refresh Count
byte[176-183] Product “Marker”
byte[184-215] Bad Block count per Die
byte[216-511] Reserved
*Please refer to technical note for High/Low byte definition.
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© 2022 Apacer Technology Inc.
6. Product Ordering Information
6.1 Product Code Designations
AP – MSD xxG X A – 5R DM
Flash Type
Firmware Version
Controller Solution
Temperature
C: Standard Temperature
I: Wide Temperature
Capacity
08G: 8GB
16G: 16GB
Model Name
Apacer Product Code
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© 2022 Apacer Technology Inc.
6.2 Valid Combinations
The following table lists the available models of the microSD 3.0 series which are 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.
Capacity
Standard Temperature
Wide Temperature
8GB
AP-MSD08GCA-5RDM
AP-MSD08GIA-5RDM
16GB
AP-MSD16GCA-5RDM
AP-MSD16GIA-5RDM
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© 2022 Apacer Technology Inc.
Revision History
Revision
Description
Date
1.0
Initial release
5/31/2022
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© 2022 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,
1874, South End C Cross, 9th Block Jayanagar,
Bangalore-560069, India
Tel: 91-80-4152-9061/62
Fax: 91-80-4170-0215
sales_india@apacer.com
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