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Description
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Features
4~16GB High Capacity microSD Card
Transcend High Capacity microSD Card series are
specifically designed to meet the High Capacity, High
Definition Audio and Video requirement for the latest
Digital Cameras, DV Recorders, Mobile Phones, etc.
The new defined Speed Class enables the host to
support AV applications to perform real time
recording to the microSD memory card.
Placement
Front Back
Pin Definition
Pin No.
1
2
3
4
5
6
7
Name Type Description Name Type Description
DAT2 I/O/PP
CD/DAT3 I/O/PP Card Detect / Data Line [Bit3]
CMD
V
DD
CLK I Clock
V
SS
DAT0 I/O/PP Data Line [Bit0]
PP Command / Response
S Supply voltage
S Supply voltage ground
1 2 3 4 5 6 7 8
SD Mode SPI Mode
Data Line [Bit2]
8
DAT1 I/O/PP Data Line [Bit1]
S: Power Supply; I:Input; O:Output; PP:Push-Pull
RoHS compliant product.
Operating Voltage: 2.7 ~ 3.6V
Operating Temperature: -25 ~ 85°C
Durability: 10,000 insertion/removal cycles
Compatible with SD Specification Ver. 2.0
Comply with SD File System Specification Ver. 2.0
Supports Speed Class Specification Class 2
Supports Copy Protection for Recorded Media
(CPRM) for SD-Audio
Form Factor: 11mm x 15mm x 1mm
RSV Reserved
CS I Chip Select
DI I Data In
V
DD
SCLK I Clock
V
SS
DO O/PP Data out
RSV Reserved
S
S
Supply voltage
Supply voltage ground
Transcend Information Inc.
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Architecture
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4~16GB High Capacity microSD Card
Transcend Information Inc.
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Bus Operating Conditions
• General
Parameter Symbol Min. Max. Unit Remark
Peak voltage on all lines -0.3 VDD+0.3 V
All Inputs
Input Leakage Current -10 10 µA
All Outputs
Output Leakage Current -10 10 µA
• Power Supply Voltage
Parameter Symbol Min. Max. Unit Remark
Supply voltage V
Output High Voltage V
Output Low Voltage V
Input High Voltage V
Input Low Voltage V
Power up time 250 ms From 0v to V
• Current Consumption
The current consumption is measured by averaging over 1 second.
‧ Before first command: Maximum 15 mA
‧ During initialization: Maximum 100 mA
‧ Operation in Default Mode: Maximum 100 mA
‧ Operation in High Speed Mode: Maximum 200 mA
‧ Operation with other functions: Maximum 500 mA.
• Bus Signal Line Load
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2.7 3.6 V
0.75* V
0.625* VDDVDD+0.3 V
DD
0.125* V
VSS-0.3 0.25* V
4~16GB High Capacity microSD Card
V IOH=-100uA@V
DD
DD
V IOL=100uA@V
V
DD
DD
Min.
DD
Min.
Min.
The total capacitance C
capacitance C
C
= C
L
HOST
Where N is the number of connected cards.
Pull-up resistance R
Bus signal line capacitance C
Transcend Information Inc.
itself and the capacitance C
BUS
+ C
BUS
Parameter Symbol Min. Max. Unit Remark
the CLK line of the SD Memory Card bus is the sum of the bus master capacitance C
L
+ Ν*C
CARD
of each card connected to this line:
CARD
10 100 kΩ To prevent bus floating
40 pF 1 card
3
R
CMD
DAT
L
C
HOST+CBUS
30 pF
, the bus
HOST
shall not exceed
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Single card capacitance C
Maximum signal line inductance 16 nH f
Pull-up resistance inside card (pin1) R
Note that the total capacitance of CMD and DAT lines will be consist of C
connected separately to the SD Memory Card host.
Host should consider total bus capacitance for each signal as the sum of C
defined by per signal. The host can determine C
capacitance load (C
maximum value of C
=40 pF). The SD Memory Card guarantees its bus timing when total bus capacitance is less than
L
(40 pF).
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HOST
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CARD
DAT3
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10 pF
10 90 kΩ May be used for card
and C
so that total bus capacitance is less than the card estimated
BUS
4~16GB High Capacity microSD Card
, C
HOST
HOST
BUS
, C
PP
detection
and one C
, and C
BUS
≤ 20 MHz
only because they are
CARD
, these parameters are
CARD
Transcend Information Inc.
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• Bus Signal Levels
As the bus can be supplied with a variable supply voltage, all signal levels are related to the supply voltage.
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4~16GB High Capacity microSD Card
To meet the requirements of the JEDEC specification JESD8-1A and JESD8-7, the card input and output voltages shall be
within the following specified ranges for any V
Parameter Symbol Min. Max. Unit Remark
Output HIGH voltage V
Output LOW voltage V
Input HIGH voltage V
Input LOW voltage V
Transcend Information Inc.
OH
OL
IH
IL
of the allowed voltage range:
DD
0.75* V
0.625* V
V
DD
0.125* V
DD
– 0.3 0.25* V
SS
5
V I
DD
V
+ 0.3 V
DD
DD
= -100 μA @VDD min
OH
V I
V
= -100 μA @VDD min
OL
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• Bus Timing
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4~16GB High Capacity microSD Card
Parameter Symbol Min Max. Unit Remark
Clock CLK (All values are referred to min (VIH) and max (VIL)
Clock frequency Data Transfer Mode f
Clock frequency Identification Mode f
Clock low time t
Clock high time t
Clock rise time t
Clock fall time t
Inputs CMD, DAT (referenced to CLK)
Input set-up time t
Input hold time t
Transcend Information Inc.
PP
OD
WL
WH
TLH
THL
ISU
0 25 MHz C
0
/100 400 KHz C
(1)
10 ns C
10 ns C
10 ns C
10 ns C
5 ns C
IH
5 ns C
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≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
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Outputs CMD, DAT (referenced to CLK)
Output Delay time during Data Transfer Mode t
Output Delay time during Identification Mode t
(1) 0 Hz means to stop the clock. The given minimum frequency range is for cases were continues clock is required
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ODLY
ODLY
0 14 ns C
0 50 ns C
4~16GB High Capacity microSD Card
≤ 40 pF, (1 card)
L
≤ 40 pF, (1 card)
L
Transcend Information Inc.
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• Bus Timing (High Speed Mode)
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4~16GB High Capacity microSD Card
Parameter Symbol Min Max. Unit Remark
Clock CLK (All values are referred to min (VIH) and max (VIL)
Clock frequency Data Transfer Mode f
Clock low time t
Clock high time t
Clock rise time t
Clock fall time t
Inputs CMD, DAT (referenced to CLK)
Input set-up time t
Input hold time t
Outputs CMD, DAT (referenced to CLK)
Transcend Information Inc.
PP
WL
WH
TLH
THL
ISU
0 50 MHz C
7 ns C
7 ns C
3 ns C
3 ns C
6 ns C
IH
2 ns C
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≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
≤ 10 pF, (1 card)
CARD
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