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Datasheet for:
SDHC
microSD Card
PSUSDxxxxCxxxxxE
microSD Cards for Entry Level Applications
Legal Information
Copyright© 2017 Sanmina Corporation. All rights reserved. The information in this document is
proprietary and confidential to Sanmina Corporation. No part of this document may be
reproduced in any form or by any means or used to make any derivative work (such as
translation, transformation, or adaptation) without written permission from Sanmina. Sanmina
reserves the right to revise this documentation and to make changes in content from time to
time without obligation on the part of Sanmina to provide notification of such revision or change.
Sanmina provides this documentation without warranty, term or condition of any kind, either
expressed or implied, including, but not limited to, expressed and implied warranties of
merchantability, fitness for a particular purpose, and non-infringement. While the information
contained herein is believed to be accurate, such information is preliminary, and should not be
relied upon for accuracy or completeness, and no representations or warranties of accuracy or
completeness are made. In no event will Sanmina be liable for damages arising directly or
indirectly from any use of or reliance upon the information contained in this document. Sanmina
may make improvements or changes in the product(s) and/or the program(s) described in this
documentation at any time.
Sanmina, Viking Technology, Viking Modular Solutions, and the Viking logo are trademarks of
Sanmina Corporation. Other company, product or service names mentioned herein may be
trademarks or service marks of their respective owners.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 2
Revision History
Date
3/31/17
Revision
A
Description
Initial release.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
Checked by
SDHC microSD Cards
Page 3
Ordering Information for the SDHC microSD Card
VikingPart#
Interface
Temp
GB
Client/Ent
NAND
VTUSD032GCCBMTLE
VTUSD064GCCAMTLE
microSD Card
microSD Card
(-25 to+85'c)
(-25 to+85'c)
32GB (SDHC)
64GB (SDHC)
Ent
Ent
TSB 15nm MLC
TSB 15nm MLC
VTUSD128GCCZMTLE
microSD Card
(-25 to+85'c)
128GB (SDHC)
Ent
TSB 15nm MLC
Notes:
1. Contact Viking for availability date
2. The lowercase letters x,y and z are wildcard characters that indicate product or customer specific information
3. Refer to the Viking part number coversheet or PN decoder for details.
4. Based on FLASH Entry SD 3.0 Toshiba MLC NAND SDHC,
Datasheet: PSUSDxxxxCxxxxxE
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SDHC microSD Cards
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Table of Contents
1
INTRODUCTION
8
1.1
FEATURES
8
2
MICROSD CARD STANDARDS COMPATIBILITY
9
3
PHYSICAL CHARACTERISTICS
9
3.1
Package Characteristics
9
3.2
Environmental Characteristics
9
3.3
Physical Characteristics
10
4
ELECTRICAL INTERFACE
10
4.1
Pin Assignment
10
4.2
microSD Card Bus Topology
4.2.1
SD Bus Mode protocol
11
11
4.3
17
SDHC Card Initialization
4.4
Electrical Characteristics
4.4.1
Absolute Maximum Conditions
4.4.2
DC Characteristics
4.4.3
AC Characteristics (Default Speed)
4.4.1
AC Characteristics (High Speed)
4.4.2
AC Characteristics (SDR104, SDR50, SDR25, SDR12)
21
21
22
24
26
27
5
CARD INTERNAL INFORMATION
31
5.1
Security Information
31
5.2
microSD Card Registers
5.2.1
OCR Register
5.2.2
CID Register
5.2.3
CSD Register
5.2.4
RCA Register
5.2.5
DSR Register
5.2.6
SCR Register
5.2.7
Card Status
5.2.8
SD Status
5.2.9
Switch Function Status
31
32
33
33
35
35
35
35
37
38
5.3
Logical Format
5.3.1
microSD Card Capacities
39
40
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SDHC microSD Cards
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5.3.2
5.3.3
5.3.4
5.3.5
microSD card System Information
Data of the logical format of a 128GB Card
Data of the logical format of a 64GB Card
Data of the logical format of a 32GB Card
40
40
40
40
6
SD SPECIFICATION COMPLIANCE
40
7
RELIABILITY GUIDANCE
41
8
MICROSD CARD MECHANICAL DIMENSIONS
43
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SDHC microSD Cards
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Table of Tables
Table 1-1: Features ___________________________________________________________________ 8
Table 4-1: microSD Card Pin Assignment ________________________________________________ 10
Table 4-2: SD Mode Command Set ( + = Implemented, - = Not Implemented) __________________ 12
Table 4-3: SPI Mode Command Set ( + = Implemented, - = Not Implemented) _________________ 15
Table 4-4:S18R and S18A Combinations _________________________________________________ 19
Table 4-5: Absolute Maximum Conditions ________________________________________________ 21
Table 4-6: DC Characteristics Threshold level for High Voltage Range) _________________________ 22
Table 4-7: Peak Voltage and Leakage Current_____________________________________________ 22
Table 4-8: DC Characteristics (Threshold level for 1.8V signaling) _____________________________ 22
Table 4-9: Input Leakage Current for 1.8V Signaling ________________________________________ 23
Table 4-10: Power Consumption _______________________________________________________ 23
Table 4-11: Signal Capacitance ________________________________________________________ 24
Table 4-12: AC Characteristics (Default Speed) ____________________________________________ 25
Table 4-13: AC Characteristics (High Speed) ______________________________________________ 26
Table 4-14: Clock Signal Timing of SDR104, SDR50, SDR25, SDR12 modes input _______________ 27
Table 4-15: Clock input Timing of SDR104, SDR50, SDR25, SDR12 input timing _________________ 28
Table 4-16: Output Timing of Fixed Data Window ( SDR50, SDR25, SDR12 ) ____________________ 28
Table 4-17: Output Timing of Variable Data Window ( SDR104 ) ______________________________ 29
Table 4-18: Clock Signal Timing of DDR50 _______________________________________________ 30
Table 4-19: BUS Timings – Parameters Values (DDR50 mode) _______________________________ 30
Table 5-1: microSD Card Registers _____________________________________________________ 32
Table 5-2: OCR Register Definition _____________________________________________________ 32
Table 5-3: CID register _______________________________________________________________ 33
Table 5-4: CSD register ______________________________________________________________ 33
Table 5-5: The SCR Fields ____________________________________________________________ 35
Table 5-6: Card Status _______________________________________________________________ 35
Table 5-7: SD Status _________________________________________________________________ 37
Table 5-8: Switch Function Status ______________________________________________________ 38
Table 5-9: microSD Card Capacities ____________________________________________________ 40
Table 5-10: microSD Card System information ____________________________________________ 40
Table of Figures
Figure 1-1: Top View __________________________________________________________________ 9
Figure 4-1: microSD Card Pin Assignment (Back view of the Card) ____________________________ 10
Figure 4-2: Bus Connection Diagram (SD Mode) ___________________________________________ 12
Figure 4-3: Bus Connection Diagram (SPI Mode) __________________________________________ 15
Figure 4-4: UHS-I Host Initialization Flow Chart ____________________________________________ 17
Figure 4-5: ACMD41 Timing Followed by Signal Voltage Switch Sequence ______________________ 18
Figure 4-6: Signal Voltage Switch Sequence ______________________________________________ 20
Figure 4-7: microSD Card Connection Diagram ____________________________________________ 21
Figure 4-8: AC Timing Diagram (Default Speed Mode) ______________________________________ 24
Figure 4-9: AC Timing Diagram (High Speed Mode) ________________________________________ 26
Figure 4-10: AC Timing Diagram (SDR104, SDR50, SDR25, SDR12 modes input) ________________ 27
Figure 4-11: AC Timing Diagram (SDR104, SDR50, SDR25, SDR12 input timing)_________________ 27
Figure 4-12: Output Timing of Fixed Window ______________________________________________ 28
Figure 4-13: Output Timing of Variable Window ____________________________________________ 29
Figure 4-14: Clock Signal Timing _______________________________________________________ 29
Figure 4-15: Timing Diagram DAT Inputs/Outputs Referenced to CLK in DDR50 Mode _____________ 30
Datasheet: PSUSDxxxxCxxxxxE
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SDHC microSD Cards
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1 Introduction
This data sheet describes the specifications of the SDHC microCard, a Memory Card of Small
and Thin with SDMI compliant Security method. (SDMI: Secure Digital Music Initiative) Contents
in the Card can be protected by CPRM based security. This contents security can be
accomplished by SDHC microCard, host, and security application software combinations.
1.1 FEATURES
Table 1-1: Features
Media Format
microSD Memory Card
Standard
Security Functions
Logical Format
Electrical Features
Operating Voltage
Operating Current
SD Interface
Physical Features
Compliant with the SD Memory Card Standard Ver. 4.20,
UHS104
SD Security Specification Ver.2.00 Compliant (CPRM Based)
*CPRM: Contents Protection for Recording Media
Specification
SD File System Specification Ver.2.00 Compliant SDHC Card
= FAT32
VDD = 2.7V(min), 3.3V(Typ), 3.6V(max)
SDR104 Write : 140mA(max) SDR104 Read : 150mA(max)
DS : Signaling Voltage = 3.3V(Typ), SDCLK = 25MHz HS :
Signaling Voltage = 3.3V(Typ), SDCLK = 50MHz
Physical Package size
/Mass
L: 15, W: 11, T: 1 (mm), Weight: 0.3g (typ.) SD Physical
Layer Specification Ver.3.01 Compliant
Durability
RoHS
Compliant with SD Physical Layer Specification Ver.3.01 and
microSD Memory Card specification 2.01 Compliant
Compliant with RoHS regulations (DIRECTIVE 2011/65/EU)
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Figure 1-1: Top View
2 microSD Card Standards Compatibility
This microSD Memory Card Specification is compliant with:
PHYSICAL LAYER SPECIFICATION Ver.3.01 (Part1)
(Except for Mechanical Specification)
FILE SYSTEM SPECIFICATION Ver.2.00. (Part2)
SECURITY SPECIFICATION Ver.2.00. (Part3)
microSD Card Memory Card Specification Version 2.01
3 Physical Characteristics
3.1
Package Characteristics
1. Mold Material: Epoxy Resin+Silicon Dioxide
2. Flameproof Grade: V-0(UL94)
3. Heatproof Temperature: approx.400 degrees
3.2 Environmental Characteristics
The standard Operation Conditions are:
Absolute Maximum Temperature Range
Humidity less than RH = 95 %, Non condensed
Ta = -25 to +85°C
Ta = 25°C
The standard Storage Conditions are:
Maximum Temperature Range:
Humidity less than RH = 93%, Non condensed
Tstg = -40 to +85°C
Ta = 40°C
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SDHC microSD Cards
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3.3 Physical Characteristics
1) Hot Insertion or Removal
The microSD Card can be removed or inserted without power off from the host system as
described in the SD Physical Layer Specification 6.1
The connector will recognize the Hot Insertion or Removal is defined in the 6.2 of the PHYSICAL
LAYER SPECIFICATION.
2) Mechanical Write Protect Switch
The microSD memory Card has no mechanical write protect switch.
4 Electrical Interface
4.1 Pin Assignment
The table below describes the pin assignment of the microSD card. The following
figure describes the pin assignment of the microSD card. Please refer to the detail
descriptions by SD Card Physical Layer Specification.
Figure 4-1: microSD Card Pin Assignment (Back view of the Card)
Table 4-1: microSD Card Pin Assignment
SD Mode
SPI Mode
Pin
Name
IO Type
Description
Name
IO Type
Description
1
DAT2
I/O/PP
Data Line[Bit2]
RSV
I/O/ PP
Card Detect/ Data Line[Bit3]
CS
I
PP
Command/Response
DI
I
Chip Select
(Negative True)
Data In
3
CD/
DAT3
CMD
4
VDD
S
Supply Voltage
VDD
S
Supply Voltage
5
CLK
I
Clock
SCLK
I
Clock
6
VSS
S
Ground
VSS
S
Ground
2
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SDHC microSD Cards
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SD Mode
SPI Mode
Pin
Name
IO Type
Description
Name
IO Type
Description
7
DAT0
I/O/PP
Data Line[Bit0]
DO
O/PP
Data Out
8
DAT1
I/O/PP
Data Line[Bit1]
RSV
－
Notes:
S: Power Supply
I: Input
O: Output using push-pull drivers
PP: I/O using push-pull drivers
(*) These signals should be pulled up by host side with 10-100k ohm resistance in the SPI Mode.
Reserved(*)
4.2 microSD Card Bus Topology
The device supports two alternative communication protocols: SD and SPI Bus Mode. It is as
same as standard microSD memory cards. Host System can choose either one of modes.
Same Data of the device can read and write by both modes. SD Mode allows the 4-bit high
performance data transfer. SPI Mode allows easy and common interface for SPI channel. The
disadvantage of this mode is loss of performance, relatively to the SD mode.
4.2.1 SD Bus Mode protocol
The SD bus allows the dynamic configuration of the number of data line from 1 to 4 Bidirectional data signal. After power up by default, the Device will use only DAT0. After
initialization, host can change the bus width. Multiplied microSD cards connections are available
to the host. Common VDD, VSS and CLK signal connections are available in the multiple
connections. However, Command, Respond and Data lined (DAT0-DAT3) shall be divided for
each card from host. This feature allows easy tradeoff between hardware cost and system
performance. Communication over the SD bus is based on command and data bit stream
initiated by a start bit and terminated by stop bit.
Command:
Commands are transferred serially on the CMD line. A command is a token to starts an
operation from host to the card. Commands are sent to an addressed single card (addressed
Command) or to all connected cards (Broad cast command).
Response:
Responses are transferred serially on the CMD line. A response is a token to answer to a
previous received command. Responses are sent from an addressed single card or from all
connected cards.
Data:
Data can be transfer from the card to the host or vice versa. Data is transferred via the data
lines.
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SDHC microSD Cards
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microSD Card
(A)
microSD Card
(B)
Figure 4-2: Bus Connection Diagram (SD Mode)
CLK
CMD
DAT0 - DAT3
VDD
VSS
Host card Clock signal
Bi-directional Command/ Response Signal
4 Bi-directional data signal
Power supply
GND
Table 4-2: SD Mode Command Set ( + = Implemented, - = Not Implemented)
CMD
Index
Abbreviation
CMD0
GO_IDLE_STATE
+
CMD2
ALL_SEND_CID
+
CMD3
SEND_RELATIVE_ADDR
+
CMD4
SET_DSR
-
CMD6
SWITCH_FUNC
+
CMD7
SELECT/DESELECT_CARD
+
CMD8
SEND_IF_COND
+
CMD9
SEND_CSD
+
Implementation Note
CMD10 SEND_CID
+
CMD11 VOLTAGE_SWITCH
+
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
DSR Register is not implemented.
UHS-I mode
SDHC microSD Cards
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CMD
Index
Abbreviation
Implementation Note
CMD12 STOP_TRANSMISSION
+
CMD13 SEND_STATUS
+
CMD15 GO_INACTIVE_STATE
+
CMD16 SET_BLOCKLEN
+
CMD17 READ_SINGLE_BLOCK
+
CMD18 READ_MULTIPLE_BLOCK
+
CMD19 SEND_TUNING_PATTERN
+
UHS-I mode
CMD20 SPEED_CLASS_CONTROL
+
For SDHC/SDXC
CMD23 SET_BLOCK_COUNT
+
CMD24 WRITE_BLOCK
+
CMD25 WRITE_MULTIPLE_BLOCK
+
CMD26 Reserved for Manufacturer
+
CMD27 PROGRAM_CSD
+
CMD28 SET_WRITE_PROT
-
CMD29 CLR_WRITE_PROT
-
CMD30 SEND_WRITE_PROT
-
CMD32 ERASE_WR_BLK_START
+
CMD33 ERASE_WR_BLK_END
+
CMD38 ERASE
+
CMD42 LOCK_UNLOCK
+
CMD55 APP_CMD
+
CMD56 GEN_CMD
+
CMD60 Reserved for Manufacturer
+
CMD61 Reserved for Manufacturer
+
CMD62 Reserved for Manufacturer
+
ACMD6 SET_BUS_WIDTH
+
ACMD13 SD_STATUS
+
ACMD22 SEND_NUM_WR_BLOCKS
+
ACMD23 SET_WR_BLK_ERASE_COUNT
+
ACMD41 SD_APP_OP_COND
+
ACMD42 SET_CLR_CARD_DETECT
+
ACMD51 SEND_SCR
+
ACMD18 SECURE_READ_MULTI_BLOCK
+
ACMD25 SECURE_WRITE_MULTI_BLOCK
+
ACMD26 SECURE_WRITE_MKB
+
ACMD38 SECURE_ERASE
+
ACMD43 GET_MKB
+
ACMD44 GET_MID
+
ACMD45 SET_CER_RN1
+
ACMD46 GET_CER_RN2
+
ACMD47 SET_CER_RES2
+
ACMD48 GET_CER_RES1
+
ACMD49 CHANGE_SECURE_AREA
Notes:
+
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Revision A | April 3, 2017
Internal Write Protection is not implemented.
This command is not specified.
SDHC microSD Cards
Page 13
CMD28, 29 and CMD30 are optional commands.
CMD4 is not implemented because DSR register (Optional Register) is not implemented.
CMD56 is a vender specific command which is not defined in the standard card.
6.2.2 SPI Bus mode Protocol
The SPI bus allows 1 bit Data line by 2-chanel (Data In and Out). The SPI compatible mode
allows the MMC Host systems to use microSD card with little change. The SPI bus mode
protocol is byte transfers. All the data token are multiples of the bytes (8-bit) and always byte
aligned to the CS signal.
The advantage of the SPI mode is reducing the host design effort. Especially, the MMC host
can be modified with little change. The disadvantage of the SPI mode is the loss of performance
versus SD mode.
Caution: Please use SD Card Specification. DO NOT use MMC Specification. (For example,
initialization is achieved by ACMD41, and be careful to Register. Register definition is different,
especially CSD Register.)
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SDHC microSD Cards
Page 14
microSD Card
(A)
microSD Card
(B)
Figure 4-3: Bus Connection Diagram (SPI Mode)
CS
CLK
CMD
DataIN
DataOUT
VDD
VSS
Card Select Signal
Host card Clock signal
Bi-directional Command/ Response Signal
Host to card data line
Host to card data line
Power supply
GND
Table 4-3: SPI Mode Command Set ( + = Implemented, - = Not Implemented)
CMD
Index
Abbreviation
Implementation Note
CMD0 GO_IDLE_STATE
+
CMD1 SEND_OP_COND
+
CMD6 SWITCH_FUNC
+
CMD8 SEND_IF_COND
+
CMD9 SEND_CSD
+
CMD10 SEND_CID
+
CMD12 STOP_TRANSMISSION
+
Note: DO NOT USE (See UHS-I
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
Host Initialization
Flow Chart and the section called “Efficient
Data Writing to SD Memory Card”
SDHC microSD Cards
Page 15
CMD
Index
Abbreviation
Implementation Note
CMD13 SEND_STATUS
+
CMD16 SET_BLOCKLEN
+
CMD17 READ_SINGLE_BLOCK
+
CMD18 READ_MULTIPLE_BLOCK
+
CMD24 WRITE_BLOCK
+
CMD25 WRITE_MULTIPLE_BLOCK
+
CMD26 Reserved for Manufacturer
+
CMD27 PROGRAM_CSD
+
CMD28 SET_WRITE_PROT
-
CMD29 CLR_WRITE_PROT
-
CMD30 SEND_WRITE_PROT
-
CMD32 ERASE_WR_BLK_START
+
CMD33 ERASE_WR_BLK_END
+
CMD38 ERASE
+
CMD42 LOCK_UNLOCK
+
CMD55 APP_CMD
+
CMD56 GEN_CMD
+
CMD58 READ_OCR
+
CMD59 CRC_ON_OFF
+
CMD60 Reserved for Manufacturer
+
ACMD13 SD_STATUS
+
ACMD22 SEND_NUM_WR_BLOCKS
+
ACMD23 SET_WR_BLK_ERASE_COUNT
+
ACMD41 SD_APP_OP_COND
+
ACMD42 SET_CLR_CARD_DETECT
+
ACMD51 SEND_SCR
+
ACMD18 SECURE_READ_MULTI_BLOCK
+
ACMD25 SECURE_WRITE_MULTI_BLOCK
+
ACMD26 SECURE_WRITE_MKB
+
ACMD38 SECURE_ERASE
+
ACMD43 GET_MKB
+
ACMD44 GET_MID
+
ACMD45 SET_CER_RN1
+
ACMD46 GET_CER_RN2
+
ACMD47 SET_CER_RES2
+
ACMD48 GET_CER_RES1
+
Internal Write Protection is not implemented.
This command is not specified.
ACMD49 CHANGE_SECURE_AREA
+
Notes:
CMD28, CMD29 and CMD30 are optional commands.
CMD56 is a vender specific command which is not defined in the standard card.
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SDHC microSD Cards
Page 16
4.3 SDHC Card Initialization
The flow chart for UHS-I hosts and the sequence of commands to perform a signal voltage
switch is shown below. Red and yellow boxes are new procedures to initialize the UHS-I card.
Figure 4-4: UHS-I Host Initialization Flow Chart
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SDHC microSD Cards
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Figure 4-5: ACMD41 Timing Followed by Signal Voltage Switch Sequence
1) POWER ON: Supply Voltage for initialization.
Host System applies the perating Voltage to the card. Apply more
than 74 cycles of Dummy-clock to the microSD card.
2) Select operation mode (SD mode or SPI mode)
In the case of SPI mode operation, the host should drive pin 1 (CD/DAT3) of the microSD Card
I/F to a “Low” level. Then, issue CMD0. In the case of SD mode operation, the host should
drive or detect pin 1 of the microSD Card I/F (Pull up register of pin 1 is pull up to “High”
normally). The card maintains selected operation mode except re-issue of CMD0 or power on
below is SD mode initialization procedure.
3) Send Interface condition command (CMD8).
When the card is in the Idle state, the host shall issue CMD8 before ACMD41. In the argument,
'voltage supplied' is set to the host supply voltage and 'check pattern' is set to any 8-bit pattern.
The card that accepted the supplied voltage returns R7 response. In the response, the card
echoes back both the voltage range and check pattern set in the argument. If the card does not
support the host supply voltage, it shall not return response and stays in the Idle state.
4) Send initialization command (ACMD41).
When the signaling level is 3.3V, the host repeats an issue ACMD41 with HCS=1 and S18R=1
until the response indicates ready. The argument (HCS and S18R) of the first ACMD41 is
effective but the all the following ACMD41 should be issued with the same argument. If Bit 31
indicates ready, the host needs to check CCS and S18A. The card indicates S18A=0, which
means that the voltage switch is not allowed and the host needs to use the current signaling
level.
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SDHC microSD Cards
Page 18
Table 4-4:S18R and S18A Combinations
Current Signaling
Level
18R
S18A
Comment
0
0
1.8V signaling is not requested
3.3V
1
0
The card does not support 1.8V signaling
1
1
Start signal voltage switch sequence
1.8V
X
0
Already switched to 1.8V
5) Send voltage switch command (CMD11)
S18A=1 means that the voltage switch is allowed and host issues CMD11 to invoke voltage
switch sequence. By receiving CMD11, the card returns R1 response and start voltage switch
sequence. No response of CMD11 means that S18A was 0 and therefore the host should not
have sent CMD11. Completion of voltage switch sequence is checked by high level of
DAT[3:0]. Any bit of DAT[3:0] can be checked depends on ability of the host. The card enters
UHS-I mode and card input and output timings are changed (SDR12 in default) when the
voltage switch sequence is completed successfully.
6) Send ALL_SEND_CID command (CMD2) and get the Card ID (CID)
7) Send SEND_RELATIVE_ADDR (CMD3) and get the RCA.
RCA value is randomly changed by access, not equal zero.
8) Send SELECT / DESELECT_CARD command (CMD7) and move to the transfer state.
When entering tran state, CARD_IS_LOCKED status in the R1 response should be checked (it
is indicated in the response of CMD7). If the CARD_IS_LOCKED status is set to 1 in the
response of CMD7, CMD42 is required before ACMD6 tounlock the card. ( If the card is locked,
CMD42 is required to unlock the card. ) If the card is unlocked, CMD42 can be skipped.
9) Send SET_BUS_WIDTH command (ACMD6).
UHS-I supports only 4-bit mode. Host shall select 4-bit mode by ACMD6. If the card is locked,
host needs to unlock the card by CMD42 in 1-bit mode and then needs to issue ACMD6 to
change 4-bit bus mode. Operating in 1-bit mode is not assured.
10) Set driver strength.
CMD6 mode 0 is used to query which functions the card supports, and to identify the maximum
current consumption of the card under the selected functions. In case of UHS-I card,
appropriate driver strength (default is Type-B buffer) is selected by CMD6 Function Group 3.
11) Set UHS-I mode current limit.
UHS-I modes ( Bus Speed Mode ) is selected by CMD6 Function Group
1. Current limit is selected by CMD6 Function Group 4.
Note:
Function Group 4 is defined as Current Limit switch for SDR50, SDR104, DDR50. The Current
Limit does not act on the card in SDR12 and SDR25. The default value of the Current Limit is
200mA (minimum setting). Then after selecting one of SDR50, SDR104, DDR50 mode by
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 19
Function Group 1, host needs to change the Current Limit to enable the card to operate in higher
performance. This value is determined by a host power supply capability to the card, heat release
method taken by a host and the maximum current of a connector.
12) Tuning of sampling point
CMD19 sends a tuning block to the host to determine sampling point. In SDR50, SDR104 and
DDR50 modes, if tuning of sampling point is required, CMD19 is repeatedly issued until tuning
is completed. Then the Host can access the Data between the microSD card as a storage
device.
Application Notes:
1.The host shall set ACMD41 timeout to more than 1 second to abort repeat of issuing
ACMD41 when the card does not indicate ready. The timeout count starts from the first
ACMD41 which is set voltage window in the argument.
2.Once the signal voltage is switched to 1.8V, the card continues 1.8V signaling regardless of
CMD0. Power cycle resets the signal voltage to 3.3V. After switching 1.8V singling, the card
cannot be changed to SPI mode.
3.Timing to Switch Signal Voltage To change signaling level at the same time between host
and card, signal voltage switch sequence is invoked by CMD11 as shown in the figure below.
CMD11 is issued only when S18A=1 in the response of ACMD41.
Figure 4-6: Signal Voltage Switch Sequence
Steps that the host takes to start a voltage switch sequence.
1. The host issues CMD11 to start voltage switch sequence.
2. The card returns R1 response.
3. The card drives CMD and DAT[3:0] to “low” immediately after the response.
4. The host stops supplying SDCLK. The card shall start switching voltage after host stops SDCLK. The
time to stop SDCLK is not specified. The host can detect whether the sequence starts by checking
signal level of either one of CMD, DAT[3:0]. What signal should be checked will depend on the ability
of the host. If low level is not detected, the host should abort the sequence and execute power cycle.
5. 1.8V output of voltage regulator in card shall be stable within 5ms.The Host keeps SDCLK low at least
5ms. This means that 5ms is the maximum for the card and the minimum for the host.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 20
6. After 5ms from (step 4) and host voltage regulator is stable, the host starts providing SDCLK at 1.8V.
The card can check whether SDCLK voltage is 1.8V.
7. By detecting SDCLK, the card drives CMD to high at 1.8V for at least one clock and then stops driving
(tri-state). CMD is triggered by rising edge of SDCLK (SDR timing).
8. The card can check whether host drives CMD to 1.8V through the host pull-up resister.
9. If switching to 1.8V signaling is completed successfully, the card drives DAT[3:0] to high at 1.8V at least
one clock and then stop driving (tri-state). DAT[3:0] is triggered by rising edge of SDCLK (SDR timing).
DAT[3:0] shall be high within 1ms from start of providing SDCLK. Host check whether DAT[3:0] is high
after 1ms from supplying SDCLK. This means that 1ms is the maximum for the card and the minimum
for the host.
4.4 Electrical Characteristics
Figure 4-7: microSD Card Connection Diagram
4.4.1 Absolute Maximum Conditions
Table 4-5: Absolute Maximum Conditions
Item
Symbol
Value
Unit
Supply Voltage
Input Voltage
VDD
-0.3 to 3.9
V
VIN
-0.3 to VDD+0.3 (≤3.9)
V
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 21
4.4.2 DC Characteristics
Table 4-6: DC Characteristics Threshold level for High Voltage Range)
Item
Symbol Condition
Supply Voltage
MIN. Typ.
VDD
-
2.7
-
High
Level
VIH
-
VDD*
0.625
-
Low
Level
VIL
-
VSS0.3
-
MAX.
Unit
3.6
V
VDD+0.3
V
VDD*0.25
V
-
V
Note
Input Voltage
High
Level
VOH
VDD = Min VDD*
IOH = -2mA 0.75
-
Low
Level
VOL
VDD = Min
IOL= 2mA
-
-
-
-
OutputVoltage
Input Voltage SetupTime
Vrs
-
VDD*0.125 V
250
ms
From 0V to VDDMIn
Table 4-7: Peak Voltage and Leakage Current
Parameter
Symbol
Peak voltage on all lines
Min
Max.
Unit
-0.3
VDD+0.3
V
-10
10
uA
-10
10
uA
Remarks
All Inputs
Input Leakage Current
All Outputs
Output Leakage Current
Table 4-8: DC Characteristics (Threshold level for 1.8V signaling)
Item
Symbol
MIN.
MAX.
Unit
Supply Voltage
VDD
2.7
3.6
V
Regulator Voltage
VDDIO
1.7
1.95
V
High Level
VIH
1.27
2.00
V
Low Level
VIL
Vss-0.3
0.58
V
High Level
VOH
1.4
-
V
IOH=2mA
Low Level
VOL
-
0.45
V
IOL=2mA
Input
Voltage
Output
Voltage
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
Condition
Generated by
VDD
SDHC microSD Cards
Page 22
Table 4-9: Input Leakage Current for 1.8V Signaling
Parameter
Symbol
Input Leakage Current
Min
Max.
-2
2
Unit Remarks
uA
DAT3 pull-up is disconnected
Table 4-10: Power Consumption
Item
Standby Current
Operation
Current(peak)
Symbol
Condition
ICCS 3.6V Clock Stop
MIN. Typ. MAX. Unit
-
-
950
CurrentLimit=400mA
VDD = 3.6V
-
-
300
ICCOP1
Current Limit=200mA
*1)
VDD = 3.6V
-
-
300 mA @25 deg C
(HS or DS),VDD = 3.6V
300
Current Limit=400mA
VDD = 3.6V
250
Current Limit=200mA
Operation
ICCOP2 VDD = 3.6V
Current(average)
*2)
SDR25 or HS
VDD = 3.6V
200
Vrs
-
@25 deg C
mA @25 deg C
200
SDR12 or DS,
VDD = 3.6V
Input Voltage
SetupTime
uA
Note
100
-
-
250
ms
From 0V
to VDDMIn
*1) Peak Current: RMS value over a 10usec period *2) Average Current : value over 1 sec period.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 23
Table 4-11: Signal Capacitance
Item
Pull up
Resistance
Total bus
capacitance for
each signal line
Symbol
RCMD RDAT
10
100
k
─
40
pF 1
cardCHOST+CBUS≦30pF
─
10
pF
10
90
k
─
5
pF
CL
Card
capacitance
for signal pin
CCARD
Pull up
Resistance
inside card
( pin1 )
RDAT3
Capacity
Connected to
Power line
Min. Max. Unit Note
CC
Note: WP pull-up (Rwp) Value is depend on the Host Interface drive circuit.
4.4.3 AC Characteristics (Default Speed)
Figure 4-8: AC Timing Diagram (Default Speed Mode)
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 24
Table 4-12: AC Characteristics (Default Speed)
Item
Symbol Min. Max. Unit Note
Clock Frequency (In
any Sates)
fsty
0
25
MHz
Clock
Frequency (Data
transfer Mode)
fPP
0
25
MHz
Clock
Frequency (Card
identification Mode)
fOD
0/100
400
*1)
kHz
Clock Low Time
tWL
10
Clock High Time
tWH
Clock Rise Time
tTLH
Clock Fall Time
─
ns
10
─
ns
─
10
ns
tTHL
─
10
ns
Input set-up Time
tISU
5
─
ns
Input Hold Time
tIH
5
─
ns
0
14
ns
Output Delay time
during DataTransfer tODLY
Mode
CCARD ≦ 10pF
( 1Card )
CL ≦ 40pF (
1Card )
Output Delay time
during Identification tODLY
0
50
ns
Mode
*1) 0Hz means to stop the clock. The given minimum frequency range is for cases were continues clock is
required.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 25
4.4.1 AC Characteristics (High Speed)
Figure 4-9: AC Timing Diagram (High Speed Mode)
Table 4-13: AC Characteristics (High Speed)
Item
Symbol Min. Max. Unit Note
Clock
Frequency (During Data
transfer)
fPP
0
50
Clock Low Time
tWL
7
－
ns
Ccard≤10pF(1card)
Clock High Time
tWH
7
－
ns
Ccard≤10pF(1card)
Clock Rise Time
tTLH
－
3
ns
Ccard≤10pF(1card)
Clock Fall Time
tTHL
－
3
ns
Ccard≤10pF(1card)
Input Setup Time
tISU
6
－
ns
Ccard≤10pF(1card)
Input Hold Time
tIH
2
－
ns
Ccard≤10pF(1card)
Output Delay Time
TODLY
－
14
ns
Ccard≤40pF(1card)
Output Hold Time
TOH
2.5
-
ns
Ccard≤15pF(1card)
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
MHz Ccard≤10pF(1card)
SDHC microSD Cards
Page 26
Item
Symbol Min. Max. Unit Note
Total System capacitance
for each line
CL
-
40
pF
Ccard≤15pF(1card)
4.4.2 AC Characteristics (SDR104, SDR50, SDR25, SDR12)
Figure 4-10: AC Timing Diagram (SDR104, SDR50, SDR25, SDR12 modes input)
Table 4-14: Clock Signal Timing of SDR104, SDR50, SDR25, SDR12 modes input
Symbol
Min.
Max.
Unit Remark
tCLK
4.80
-
tCR, tCF
-
0.2*
tCLK
ns
Clock Duty
30
70
%
ns 208MHz (Max.), Between rising edge, VCT= 0.975V
tCR, tCF < 0.96ns (max.) at 208MHz, CCARD=10pF tCR, tCF, < 2.00ns (max.) at
100MHz, CCARD=10pF
Figure 4-11: AC Timing Diagram (SDR104, SDR50, SDR25, SDR12 input timing)
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 27
Table 4-15: Clock input Timing of SDR104, SDR50, SDR25, SDR12 input timing
Symbol
Min.
Max.
Unit
SDR104 mode
tIS
1.40
-
ns
CCARD =10pF, VCT= 0.975V
tIH
0.80
-
ns
CCARD =5pF, VCT= 0.975V
Symbol
Min.
Max.
Unit
tIS
3.00
-
ns
CCARD =10pF, VCT= 0.975V
tIH
0.80
-
ns
CCARD =5pF, VCT= 0.975V
SDR12, SDR25 and SDR50 mode
Figure 4-12: Output Timing of Fixed Window
Table 4-16: Output Timing of Fixed Data Window ( SDR50, SDR25, SDR12 )
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
-
ns
Hold time at the tODLY (min.), CL=15pF
tOH
1.5
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 28
Figure 4-13: Output Timing of Variable Window
Table 4-17: Output Timing of Variable Data Window ( SDR104 )
Symbol
Min.
tOP
0
ΔtOP
Max. Unit Remark
2
-350 +1550
UI
Card Output Phase
ps
Delay variation due to temperature change after tuning
tODW
0.60
UI tODW=2.88ns at 208MHz
Card ΔtOP is the total allowable shift of output valid window (tODW) from last system Tuning procedure. Card
ΔtOP =1550pS for junction temperature of ΔT= 90°C during operation. Card ΔtOP =-350pS for junction temperature
of ΔT= -20°C during operation.
6.4.5.2 Bus Timing Specification (DDR50)
Figure 4-14: Clock Signal Timing
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 29
Table 4-18: Clock Signal Timing of DDR50
Symbol
Min.
Max.
tCLK
20
-
tCR, tCF
-
Clock Duty
45
Unit Remark
ns 50MHz (Max.), Between rising edge
0.2* tCLK ns tCR, tCF, < 4.00ns (max.) at 50MHz, CCARD=10pF
55
%
CMD signal timings are not shown in the figure below but For CMD signal timing refers to Figure 4-13 (Card Input
Timing) and Figure 4-14 (Output Timing of Fixed Data Window) for Timing Diagram of SDR mode).
Figure 4-15: Timing Diagram DAT Inputs/Outputs Referenced to CLK in DDR50
Mode
Table 4-19: BUS Timings – Parameters Values (DDR50 mode)
Parameter
Symbol Min Max Unit Remark
Input CMD (referenced to CLK rising edge)
Input set-up time (*)
tISU
6
-
ns CCARD ≤ 10 pF (1 card)
Input hold time
tIH
0.8
-
ns CCARD ≤ 10 pF (1 card)
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 30
Parameter
Symbol Min Max Unit Remark
Output CMD (referenced to CLK rising edge)
Output Delay time during Data
Transfer Mode
tODLY
-
13.7 ns CL ≤ 30 pF (1 card)
Output hold time
tOH
1.5
ns CL ≥ 15pF (1 card)
Inputs DAT (referenced to CLK rising and falling edges)
Input set-up time
tISU2x
3
-
ns CCARD ≤ 10 pF (1 card)
Input hold time
tIH2x
0.8
ns CCARD ≤ 10 pF (1 card)
Outputs DAT (referenced to CLK rising and falling edges)
Output Delay time during Data
Transfer Mode
tODLY2x
7.0
ns CL ≤ 25 pF (1 card)
Output hold time
tODLY2x 1.5
ns CL ≥ 15pF (1 card)
(*) Input set-up time : tISU(min) is 6ns in PHYSICAL LAYER SPECIFICATION Ver.3.01
5 Card Internal Information
5.1 Security Information
MKB (Media Key Block) and Media ID are Standard Information. This information is in
compliance with the CPRM.
Note: The security information is NOT Development information for evaluation. The Host
System shall be compliance with the CPRM to use the security function. This information is kept
as confidential because of security reasons.
5.2 microSD Card Registers
The device has six Registers and two Status information: OCR, CID, CSD, RCA, DSR, SCR
and SD Card Status, SD Status as same as SD card.
DSR IS NOT SUPPORTED in this card.
There are two types of register groups.
MMC compatible registers: OCR, CID, CSD, RCA, DSR, and
SCR SD card Specific: SD Status
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 31
Table 5-1: microSD Card Registers
Register Bit
Description
Name Width
CID
128 Card Identification number
RCA
16
Relative Card Address
DSR
16
Optional : Driver Stage
CSD
128 Card Specific Data
SCR
64
SD Configuration
OCR
32
Operation conditions
CSR
32
Card Status
CMD6
512 Switch Function Status
SD
Status
512 Status bits and card features
5.2.1 OCR Register
This 32-bit register describes operating voltage range and status bit in the power supply.
Table 5-2: OCR Register Definition
OCR bit
position
Response Value
OCR Fields Definition
0-3
32GB
reserved
0
0
0
4-6
reserved
0
0
0
7
Reserved for Low
Voltage Range
0
0
0
8-14
reserved
0
0
0
2.7 - 2.8
1
1
1
2.8 - 2.9
1
1
1
2.9 - 3.0
1
1
1
18
3.0 - 3.1
1
1
1
19
3.1 - 3.2
1
1
1
20
3.2 - 3.3
1
1
1
21
3.3 - 3.4
1
1
1
22
3.4 - 3.5
1
1
1
3.5 - 3.6
15
16
17
VDD
voltage
Window
1
1
1
24(1)
23
Switching to 1.8V Accepted
(S18A)
1
1
1
25-29
reserved
0
0
0
30
Card Capacity Status (CCS)(2)
0=SD Memory Card, 1= (SDHC or SDXC)
31
Card power up status bit (busy)(3)
“ 0 “ = busy “ 1 “ = ready
Notes:
1. bit24: Only UHS-I card supports this bit.
2. bit30 : This bit is valid only when the card power up status bit is set.
3. bit31: This bit is set to LOW if the card has not finished the power up routine.
bit 23-4: Describes the microSD Card Voltage
bit 31 indicates the card power up status. Value “1” is set after power up and initialization procedure completed.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 32
5.2.2 CID Register
The CID (Card Identification) register is 128-bit width. It contains the card identification information. The
Value of CID Register is vender specific.
Table 5-3: CID register
CIDslice
Field Width
Initial Value
32GB
64GB
Comment
128GB
MID
8
[127:120]
0x02
Manufacture ID(0x02 = Toshiba)
OID
16
[119:104]
0x544D
OEM/Application ID (0x544D("TM") = Toshiba)
32GB:"UC0D5"
PNM
40
[103:64] 0x5543304435 0x5543304535 0x5543304635
64GB:"UC0E5"
128GB:"UC0F5"
PRV
8
[63:56]
0x52
Product Revision
PSN
32
[55:24]
0xnnnnnnnn
Product serial number
-
4
[23:20]
0x0
reserved
MDT
12
[19:8]
0xmmm
Manufacturing data
CRC
7
[7:1]
CRC
CRC 7 Checksum (chapter 7, SD Physical spec
1
[0:0]
0x1
Notes:
1. The manufacturing date composed of two-hexadecimal digits.
CID-Slice [11:8] Month Field (Exp. 1h = January)
CID-Slice [19:12] Year Field (Exp. 0h = 2000)
1
not used, always 1
5.2.3 CSD Register
CSD is Card-Specific Data register provides information on 128bit width. Some field of this register can
writable by PROGRAM_CSD (CMD27).
Table 5-4: CSD register
Cell
Initial Value
Type
CSDslice
2
R
[127:126]
01b
-
6
R
[125:120]
00_0000b
TAAC
8
R
[119:112]
0000_1110b
1ms(time unit) * 1.0(time value) = 1ms
8
R
[111:104]
0000_0000b
0 clock Cycle
Field
Width
CSD＿STRUCTURE
NSAC
32GB
64GB
128GB
Comment
CSD version 2.0(High Capacity and
Extended Capacity)
reserved
SDR104
0010_1011b
200Mbit/s
SDR50
0000_1011b
100Mbit/s
DDR50
0000_1011b
100Mbit/s
TRAN_SPEED SDR25
[103:96] 0101_1010b
50Mbit/s
SDR12
8
0011_0010b
25Mbit/s
HS
0101_1010b
50Mbit/s
DS
0011_0010b
25Mbit/s
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
R
SDHC microSD Cards
Page 33
Cell
Initial Value
Type
CSDslice
12
R
[95:84]
0101_1011_0101b
READ_BL_LEN
4
R
[83:80]
1001b
READ_BL_PARTIAL
1
R
[79:79]
0
“ 0 “: Partial block read is inhibited and only
unit of block access is allowed.
WRITE_BLK_MISALIG
N
1
R
[78:78]
0
“ 0 “ : Not allowed on this card
READ_BLK_MISALIGN
1
R
[77:77]
0
“ 0 “ : Invalid on this card
DSR_IMP
1
R
[76:76]
0
“ 0 “ :DSR NOT implemented
-
6
R
[75:70]
00_0000b
C_SIZE
22
R
[69:48] EE87h 1DD17h 3B9EFh memory capacity = (C_SIZE+1) * 512K byte
-
1
R
[47:47]
0
reserved
ERASE_BLK_EN
1
R
[46:46]
1
“ 1 “ :Can erase by WRITE_BL_LEN unit
(512 Bytes)
SECTOR_SIZE
7
R
[45:39]
111_1111b
This size of an erasable sector. This field is
fixed to 7F-h. Sector size = 64KBytes.
WP_GRP_SIZE
7
R
[38:32]
000_0000b
This size of a write protected group. This
field is fixed to 00-h. 1 Write Protect Group
= 1sector.
WP_GRP_ENABLE
1
R
[31:31]
0
value of 0 means no group write protection
possible.
-
2
R
[30:29]
00b
reserved
Field
Width
CCC
32GB
64GB
128GB
Comment
Class 0,2,4,5,7,8,10 are supported
512Bytes
reserved
R2W_FACTOR
3
R
[28:26]
010b
This field is fixed to “2-h”, which indicates 4
multiples. However, host should not use this
factor and should use 250ms for write
timeout.
WRITE_BL_LEN
4
R
[25:22]
1001b
“ 9 “: 512Bytes on this card.
WRITE_BL_PARTIAL
1
R
[21:21]
0
-
5
R
[20:16]
0_0000b
FILE_FORMAT_GRP
1
R
[15:15]
0
This field is set to “0”. Host should not use
this field.
COPY
1
R/W
[14:14]
0
“ 0 “ : Original on this card
PERM_WRITE_PROTE
CT
1
R/W
[13:13]
0
“ 0 “: Not protected / Writable on this card
TMP_WRITE_PROTEC
T
1
R/W
[12:12]
0
FILE_FORMAT
2
R
[11:10]
00b
“ 0 “: Hard disk-like file system with partition
table on this card.
-
2
R
[9:8]
00b
reserved
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
“ 0 “: Only the WRITE_BL_LEN size or
512Bytes are available
reserved
“ 0 “: Not protected / Writable on this card
Page 34
Cell
Initial Value
Type
CSDslice
7
R/W
[7:1]
CRC
CRC 7 Checksum
1
-
[0:0]
1
not used, always 1
Field
Width
CRC
-
32GB
64GB
128GB
Comment
Notes:
1.Cell Types: R: Read Only, R/W: Writable and Readable, R/W(1): One-time Writable / Readable
2. Erase of one data block is not allowed in this card. This information is indicated by “ERASE_BLK_EN”.
Host System should refer this value before one data block size erase.
5.2.4 RCA Register
The writable 16bit relative card address register carries the card address in SD Card mode.
5.2.5 DSR Register
This register is not used
5.2.6 SCR Register
CR(SD Card Configuration Register) provides information on SD Memory Cardʼs special features. The
size of SCR Register is 64 bit and al bits are read only
Table 5-5: The SCR Fields
Initial Value
SCRComment
slice 32GB 64GB 128GB
Field
Width
SCR_STRUCTURE
4
[63:60]
0x0
SCR version 1.0(Version 1.01-3.00)
SD_SPEC
4
[59:56]
0x2
“ 2 “ : Version 2.00 or Version 3.0X, Version 4.xx (
Refer to SD_SPEC3 and SD_SPEC4 )
DATA_STAT_AFTER_ERASE
1
[55:55]
0x1
“ 1 “ : on this card
SD_SECURITY
3
[54:52] 0x3 0x4
“3“ : Security Version 2.00 ”4”：Security Version
3.00
SD_BUS_WIDTHS
4
[51:48]
0x5
“ 0101 “ : 1 and 4 bit supported
SD_SPEC3
1
[47:47]
0x1
“ 1 “ : Version 3.0X, Version 4.xx ( Refer to
SD_SPEC4 )
EX_SECURITY
4
[46:43]
0x0
Extended Security is not supported.
SD_SPEC4
1
[42:42]
0x1
“ 1 “ : Version 4.xx
-
6
[41:36]
0x0
reserved
CMD_SUPPORT
4
[35:32]
0x3
“ 11 “ : CMD23 and CMD20 support
32
[31:0]
0x3202nnnn
Note: All bits are read only
reserved for manufacture usage
5.2.7 Card Status
This field is intended to transmit the cardʼs status information to the host.
Table 5-6: Card Status
Identifier
Bits Type Value
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 35
Identifier
Bits Type Value
OUT_OF_RANGE
31
ER
“ 0 “ = no error , “ 1 “ = error
X
ADDRESS_ERROR
30
ER
“ 0 “ = no error , “ 1 “ = error
X
BLOCK_LEN_ERROR
29
ER
“ 0 “ = no error , “ 1 “ = error
X
ERASE_SEQ_ERROR
28
E R “ 0 “ = no error , “ 1 “ = error
ERASE_PARAM
27
ER
“ 0 “ = no error , “ 1 “ = error
X
WP_VIOLATION
26
ER
“ 0 “ = not protected , “ 1 “ = protected
X
CARD_IS_LOCKED
25
S X “ 0 “ = card unlocked , “ 1 “ = card locked
LOCK_UNLOCK_FAILED 24
ER
“ 0 “ = no error , “ 1 “ = error
X
COM_CRC_ERROR
23
E R “ 0 “ = no error , “ 1 “ = error
ILLEGAL_COMMAND
22
E R “ 0 “ = no error , “ 1 “ = error
CARD_ECC_FAILED
21
ER
“ 0 “ = success , “ 1 “ = failure
X
CC_ERROR
20
ER
“ 0 “ = no error , “ 1 “ = error
X
ERROE
19
ER
“ 0 “ = no error , “ 1 “ = error
X
-
18
-
17
reserved
reserved for DEFERRED_RESPONSE
CSD_OVERWRITE
16
ER
“ 0 “ = no error , “ 1 “ = error
X
WE_ERASE_SKIP
15
ER
“ 0 “ = not protected , “ 1 “ = protected
X
CARD_ECC_DISABLED
14
S X “ 0 “ = enabled , “ 1 “ = disabled
13
S R “ 0 “ = cleared , “ 1 “ = set
ERASE_STATE
CURRENT_STATE
12 – S X “ 0 “ = idle , “ 1 “ = ready , “ 2 “ = ident , “ 3 “ = stanby “ 4 “ = tran , “ 5 “ = data ,
9
“ 6 “ = rcv , “ 7 “ = prg “ 8 “ = dis , “ 9 – 14 “ = reserved “ 15 “ = reserved for I/O
mode
READY_FOR_DATA
-
8
7,6
APP_CMD
5
-
4
AKE_SEQ_ERROR
3
-
2
S X “ 0 “ = not ready , “ 1 “ = ready
S R “ 0 “ = Disabled , “ 1 “ = Enabled
reserved for SD I/O Card
E R “ 0 “ = no error , “ 1 “ = error
reserved
1,0
reserved
Notes:
E: Error bit , S: Status bit , R: Detected and set for actual command response.
X: Detected and set during command execution.
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 36
5.2.8 SD Status
Table 5-7: SD Status
Field
DAT_BUS_WIDTH
SD
Width Type Status slice
2
Initial Value
Comment
32GB
64GB 128GB
00b
1bit: HS1bit, SD1bit, HSSPI,
SPI
10b
4bit: SDR104, DDR50,
SDR50, SDR25, SDR12,
HS4bit, SD4bit
SR [511:510]
SECUERED_MODE
1
SR [509]
1
reserved
8
[508:502]
0x00
reserved
reserved
6
[501:496]
0x00
reserved
SD_CARD_TYPE
16
SR [495:480]
SIZE_OF_PROTECTED_AREA
32
SR [479:448] 0x05000000 0x08000000
32GB:81,920KB
64GB:131,072KB
128GB:131,072KB
SPEED_CLASS
8
SR [447:440]
Class10
PERFORMANCE_MOVE
8
SR [439:432]
AU_SIZE
4
reserved
0x0000
0x04
0x02
Secured Mode
Regular SD RD/WR card
0x00
0x02:2MB/s、 0x00:0MB/s
SR [431:428]
0x9
0x9:4MB
4
[427:424]
0x0
reserved
ERASE_SIZE
16
SR [423:408]
0x0020
32AU
ERASE_TIMEOUT
6
SR [407:402]
0x01
1sec
ERASE_OFFSET
2
SR [401:400]
11b
3sec
UHS_SPEED_GRADE
4
SR [399:396]
0x3
0x3:30MB/sec and above
UHS_AU_SIZE
4
SR [395:392]
0xC
0xC:16MB
-
80
[391:312]
ALL 0
reserved
-
312
[311:0]
ALL 0
reserved for manufacture
S : Status bit , R : Set based on Command Response
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 37
5.2.9 Switch Function Status
Switch function command (CMD6) is used to switch or expand memory card functions. Currently
four function groups are defined:
(1) Access Mode: Selection of SD bus interface speed modes.
(2) Command System: A specific function can be extended and controlled by a set of shared
commands.
(3) Driver Strength Selection of suitable output driver strength in UHS-I modes depends on
host environment.
(4) Power Limit Selection to limit the maximum power depends on host power supply
capability and heat release capability.
Table 5-8: Switch Function Status
Description Width
Bits
Bus
Speed
Mode
16
Value
32GB
64GB
128GB
0x0
0x00C8
(0.72W/200mA)
0x00C8
(0.72W/200mA)
0x00C8
(0.72W/200mA)
0x1
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x2
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x3
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x4
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
0x00FA
(0.90W/250mA)
SDR25
0x0〜0x4
0x00C8
(0.72W/200mA)
0x00C8
(0.72W/200mA)
0x00C8
(0.72W/200mA)
SDR12
0x0〜0x4
0x0064
(0.36W/100mA)
0x0064
(0.36W/100mA)
0x0064
(0.36W/100mA)
HS
0x0
0x00C8
(0.72W/200mA)
0x00C8
(0.72W/200mA)
0x00C8
(0.72W/200mA)
DS
0x0
0x0064
(0.36W/100mA)
0x0064
(0.36W/100mA)
0x0064
(0.36W/100mA)
SDR104/
SDR50/
DDR50
Maximum
Current
Consumption
Set Value
of Gr4
[511:496]
Function Gr
6,
information.
16
[495:480]
-
-
0x8001
Function Gr
5,
information.
16
[479:464]
-
-
0x8001
Function
Gr4,
information.
16
SDR104[463:448] 12 DDR50
HS,DS
-
0x801F
-
0x8001
Function
Gr3,
information.
16
-
0x800F
-
0x8001
Function Gr
2,
information.
16
[431:416]
-
-
0x8001
Function
Gr1,
information.
16
[415:400]
SDR10412 DDR50
-
0x801F
SDR104[447:432] 12 DDR50
HS,DS
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 38
Description Width
Bits
Bus
Speed
Mode
Set Value
of Gr4
Value
32GB
64GB
HS,DS
-
0x8003
[399:396]
-
-
Set Response Value
4
[395:392]
-
-
Set Response Value
Function
Gr4,
information.
4
[391:388]
-
-
Set Response Value
Function
Gr3,
information.
4
[387:384]
-
-
Set Response Value
Function
Gr2,
information.
4
[383:380]
-
-
Set Response Value
Function
Gr1,
information.
4
[379:376]
-
-
Set Response Value
Data
Structure
Version
8
[375:368]
-
-
0x00
Busy Status
of functions
in Gr6
16
[367:352]
-
-
0x0000
Busy Status
of functions
in Gr5
16
[351:336]
-
-
0x0000
Busy Status
of functions
in Gr4
16
[335:320]
-
-
0x0000
Busy Status
of functions
in Gr3
16
[319:304]
-
-
0x0000
Busy Status
of functions
in Gr2
16
[303:288]
-
-
0x0000
Busy Status
of functions
in Gr1
16
[287:272]
-
-
0x0000
Reserved
272
[271:0]
-
-
ALL 0
Function
Gr6,
information.
4
Function
Gr5,
information.
128GB
5.3 Logical Format
The microSD card is formatted before shipping to be compliant to the SD Card FILE SYSTEM
SPECIFICATION. The following parameters may be changed if the host system is not
compliant with the SD Card Format Specification. The data of the logical format is described in
section 5.3.3 (128GB Card), section 5.3.4 (64GB Card) and section 5.3.5 (32GB Card).
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 39
5.3.1 microSD Card Capacities
Table 5-9: microSD Card Capacities
Card Capacities
Item
32GB
64GB
128GB
Sector
KB
Sector
KB
Sector
KB
Whole
Capacity
62,660,608
31,330,304
125,231,104
62,615,552
250,331,136
125,165,568
User Data
Area Size
62,529,536
31,264,768
125,067,264
62,533,632
250,068,992
125,034,496
Protected
Area Size
131,072
65,536
163,840
81,920
262,144
131,072
5.3.2 microSD card System Information
Table 5-10: microSD Card System information
Item
User Data
Area
Protected
Area
Card Capacities
32GB
64GB
128GB
Data Boundary unit size
(KB)
4,096
16,384
16,384
Cluster Size (KB)
32
128
128
Data Boundary unit size
(KB)
16
16
16
Cluster Size (KB)
16
16
16
5.3.3 Data of the logical format of a 128GB Card
(Contact Viking)
5.3.4 Data of the logical format of a 64GB Card
(Contact Viking)
5.3.5 Data of the logical format of a 32GB Card
(Contact Viking)
6 SD Specification Compliance
1) Non Supported Registers:
DSR Register (Optional register: PHISYCAL LAYER SPECIFICATION 5.5)
2) Non Supported Functions:
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 40
Programmable Card Output Driver (Optional in PHYSICAL LAYER SPECIFICATION
6.5) Card ʻs Internal Write Protect (Optional in PHYSICAL LAYER SPECIFICATION 4.3.6.)
3) Non Specified Command:
CMD4 SET_DSR CMD28 SET_WRITE_PROT CMD29 CLR_WRITE_PROT CMD30
SEND_WRITE_PROT CMD56 GEN_CMD
7 Reliability Guidance
This reliability guidance is intended to provide some guidance related to using raw NAND flash.
Although random bit errors may occur during use, it does not necessarily mean that a block is
bad. Generally, a block should be marked as bad when a program status failure or erase status
failure is detected. The other failure modes may be recovered by a block erase.
ECC treatment for read data is mandatory due to the following Data Retention and Read Disturb
failures.
Write/Erase Endurance
Write/Erase endurance failures may occur in a cell, page, or block, and are detected by doing a
status read after either an auto program or auto block erase operation. The cumulative bad
block count will increase along with the number of write/erase cycles.
Data Retention
The data in memory may change after a certain amount of storage time. This is due to an
electrical charge loss or charge gain. After block erasure and reprogramming, the block may
become usable again. Also write/erase endurance deteriorates data retention capability. The
figure below shows a generic trend of relationship between write/erase endurance and data
retention.
Data Retention
Read Disturb
A read operation may disturb the data in memory. The data may change due to charge gain.
Usually, bit errors occur on other pages in the block, not the page being read. After a large
number of read cycles (between block erases), a tiny charge may build up and can cause a cell
to be soft programmed to another state. After block erasure and reprogramming, the block may
become usable again.
Considering the above failure modes, Viking recommends following usage model:
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 41
Avoid any excessive iteration of resets and initialization sequences (card identification mode) as
far much as possible after power-on, which may result in read disturb failure. The resets include
hardware resets and software resets. i.e.
1) The iteration of the following command sequence: CMD0 -ACMD41
(The assertion of ACMD41 implies a count of internal read operation in Raw NAND.
CMD0: Go idle state command,
ACMD41 : SD send operation command
2) Iteration of the following command: ACMD43
ACMD43 : Get MKB command
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 42
8 microSD Card Mechanical Dimensions
Note:
1. All dimensions in mm
2. Tolerance is ± 0.15 mm
Datasheet: PSUSDxxxxCxxxxxE
Revision A | April 3, 2017
SDHC microSD Cards
Page 43
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