SQFlash
Industrial Class 10 Micro SD Card
Specifications subject to change without notice, contact your sales representatives for the most update information.
REV 0.3 Page 10 of 22 May. 4, 2016
5. Pin Assignment and Block Diagram
pin
SD Mode SPI Mode
Name Type
1
Description Name Type Description
1 DAT2 I/O/PP Data Line[bit2] RSV
2 CD/DAT3
2
I/O/PP
3
Card Detect/
Data Line[bit3]
CS I
3
Chip Select (neg
true)
3 CMD PP Command/Response DI I Data In
4 V
DD
S Supply voltage V
DD
S Supply voltage
5 CLK I Clock SCLK I Clock
6 V
SS
S Supply voltage ground V
SS
S
Supply voltage
ground
7 DAT0 I/O/PP Data Line[bit0] DO O/PP Data Out
8 DAT1 I/O/PP Data Line[bit1] RSV
(1) S: power supply, I: input; O: output using push-pull drivers; PP:I/O using push-pull driver
(2) The extended DAT lines (DAT1-DAT3)are input on power up. They start to operate as DAT lines after
SET_BUS_WIDTH command. The Host shall keep its own DAT1-DAT3 lines in input mode, as well,
while they are not used. It is defined so, in order to keep compatibility to MultiMedia Cards.
(3) At power up this line has a 50KOhm pull up enabled in the card. This resistor serves two functions Card
detection and Mode Selection. For Mode Selection, the host can drive the line high or let it be pulled
high to select SD mode. If the host wants to select SPI mode it should drive the line low. For Card
detection, the host detects that the line is pulled high. This pull-up should be disconnected by the user
during regular data transfer period, with SET_CLR_CARD_DETECT (ACMD42) command.
Name Width Description
CID 128bit
Card identification number; card individual number for identification.
Mandatory
RCA
1
16bit
Relative card address; local system address of a card, dynamically
suggested by the card and approved by the host during initialization.
Mandatory
DSR 16bit Driver Stage Register; to configure the card’s output drivers. Optional
CSD 128bit
Card Specific Data; information about the card operation conditions.
Mandatory
SCR 64bit
SD Configuration Register; information about the SD Memory Card's Special
Features capabilities Mandatory
OCR 32bit Operation conditions register. Mandatory.
SSR 512bit
SD Status; information about the card proprietary features
Mandatory
OCR 32bit
Card Status; information about the card status
Mandatory
SQFlash
Industrial Class 10 Micro SD Card
Specifications subject to change without notice, contact your sales representatives for the most update information.
REV 0.3 Page 11 of 22 May. 4, 2016
6. Power Consumption
Table list as below is the power consumption of SQF-MSD card with different type of flash memory.
Capacity Flash Structure Read Write Idle
4GB 4GB x 1 100 100 150
8GB 8GB x 1 100 100 150
16GB 8GB x 2 150 150 180
32GB 8GB x 4 180 180 220
64GB 8GB x 8 200 200 250
(1) Data transfer mode is single channel.
7. Electrical Specifications
Absolute Maximum Rating
Item Symbol Parameter MIN MAX Unit
1 V
DD
-V
SS
DC Power Supply -0.3 +3.3 V
2 V
IN
Input Voltage V
SS
-0.3 V
DD
+0.3 V
3 Ta Operating Temperature (Gold) -25 +85
4 Ta Operating Temperature (Diamond) -40 +85
5 Tst Storage Temperature -40 +85
6 V
DD
V
DD
Voltage 2.7 3.6 V
8. DC Characters
BUS Operating Conditions for 3.3V Signaling
Threshold level for High Voltage Range
Parameter Symbol Min Max Unit Remarks
Supply voltage VDD 2.7 3.6 V
Output High Voltage VOH 0.75*VDD V IOH=-100uA VDDMin.
Output Low Voltage VOL 0.125*VDD V IOL = 100uA VDD min
Input High Voltage VIH 0.625*VDD VDD+0.3 V
Input Low Voltage VIL VSS-0.3 0.25 *VDD V
Power up time 250 ms from 0v to VDD min.
Bus signal levels
SQFlash
Industrial Class 10 Micro SD Card
Specifications subject to change without notice, contact your sales representatives for the most update information.
REV 0.3 Page 12 of 22 May. 4, 2016
Peak Voltage and Leakage Current
Parameter Symbol Min Max Unit Remarks
Peak voltage on all lines
-0.3 V
DD
+0.3 V
All Inputs
Input Leakage Current
-10 10 uA
All Outputs
Output Leakage Current
-10 10 uA
Bus Signal Line Levels
Parameter symbol Min Max Unit Remark
Pull-up resistance
R
CMD
R
DAT
10 100 k to prevent bus floating
Total bus capacitance for each
signal line
C
L
40 pF
1 card
CHOST+CBUS shall
not exceed 30 pF
Capacitance of the card for each
signal pin
CCAR
D
10 pF
Maximum signal line inductance 16 nH f
pp
<20 MHz
Pull-up resistance inside card (pin1)
RDAT3
10 90 k
May be used for
card detection
Power Up Time
Host needs to keep power line level less than 0.5V and more than 1ms before power ramp up.
Power On or Power Cycle
Followings are requirements for Power on and Power cycle to assure a reliable SD Card hard reset.
(1) Voltage level shall be below 0.5V
(2) Duration shall be at least 1ms.
Power Supply Ramp Up
The power ramp up time is defined from 0.5V threshold level up to the operating supply voltage which is
stable between VDD (min.) and VDD (max.) and host can supply SDCLK.
Followings are recommendation of Power ramp up:
(1) Voltage of power ramp up should be monotonic as much as possible.
(2) The minimum ramp up time should be 0.1ms.
(3) The maximum ramp up time should be 35ms for 2.7-3.6V power supply.

SQF-MSDS1-1G-21C

Mfr. #:
Manufacturer:
Advantech
Description:
Memory Cards SQF Micro SD C6 SLC 1G, 1CH (0~70 C)
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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