TS2GSD1
50
2GB 150x Secure Digital Card
Description
Features
TS2GSD150 is a 2GB Secure Digital Card of 150X
ultra-high performance. It is specifically designed to
meet the security, capacity, performance and small
form factor requirements in newly emerging audio
and video consumer electronic devices. Based on
dual channel technology and high quality SLC (Single
Level Cell) NAND flash chip, TS2GSD150 is the ideal
companion to bring out the most from your
high-performance electronic devices.
• ROHS compliant product
• Operating Voltage: 2.7 ~ 3.6V
• Operating Temperature: -25 ~ 85°C
• Insertion/removal durability: 10,000 cycles
• Fully compatible with SD card spec. v1.1
• Mechanical Write Protection Switch
• Support clock frequencies: 0~50MHz
• Support different Bus width: x1, x4
• Support SD command class 0,2,4,5,7,8
• Supports Copy Protection for Recorded Media(CPRM) for
music and other commercial media
Placement
• Form Factor: 24mm x 32mm x 2.1mm
Front
Back
Pin Definition
SD Mode
Description
SPI Mode
Pin No.
Name Type
Name Type
Description
Chip Select (neg true)
Data In
1
2
3
4
5
6
7
8
9
Card Detect/Data Line [Bit3]
Command/Response
Supply voltage ground
Supply voltage
I/O/PP
CS
DI
I
CD/DAT3
CMD
VSS1
PP
S
S
I
I
Supply voltage ground
Supply voltage
Clock
VSS
VDD
SCLK
VSS2
DO
S
VDD
S
CLK
Clock
I
S
VSS2
S
Supply voltage ground
Supply voltage ground
Data Out
DAT0 I/O/PP Data Line [Bit0]
DAT1 I/O/PP Data Line [Bit1]
O/PP
RSV
RSV
I/O/PP Data Line [Bit2]
DAT2
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TS2GSD1
50
2GB 150x Secure Digital Card
Bus Protocol
SD bus
Communication over the SD bus is based on command and data bit streams which are initiated by a start bit and
terminated by a stop bit.
• Command: a command is a token which starts an operation. A command is sent from the host either to a single
card (addressed command) or to all connected cards (broadcast command). A command is transferred serially on
the CMD line.
• Response: a response is a token which is sent from an addressed card, or (synchronously) from all connected
cards, to the host as an answer to a previously received command. A response is transferred serially on the CMD
line.
• Data: data can be transferred from the card to the host or vice versa. Data is transferred via the data lines.
Figure 4: “no response” and “no data” operations
Card addressing is implemented using a session address, assigned to the card during the initializa-tion phase. The
basic transaction on the SD bus is the command/response transaction (refer to Figure 4). This type of bus
transactions transfer their information directly within the command or response structure. In addition, some
operations have a data token.
Data transfers to/from the SD Memory Card are done in blocks. Data blocks always succeeded by CRC bits. Single
and multiple block operations are defined. Note that the Multiple Block operation mode is better for faster write
operation. A multiple block transmission is terminated when a stop command follows on the CMD line. Data transfer
can be configured by the host to use single or multiple data lines.
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TS2GSD1
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2GB 150x Secure Digital Card
Figure 5: (Multiple) Block read operation
The block write operation uses a simple busy signaling of the write operation duration on the DAT0 data line (see
Figure 6) regardless of the number of data lines used for transferring the data.
Figure 6: (Multiple) Block write operation
Command tokens have the following coding scheme:
Figure 7: Command token format
Each command token is preceded by a start bit (‘0’) and succeeded by an end bit (‘1’). The total length is 48 bits.
Each token is protected by CRC bits so that transmission errors can be detected and the operation may be repeated.
Response tokens have four coding schemes depending on their content. The token length is either 48 or 136 bits.
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TS2GSD1
50
2GB 150x Secure Digital Card
The CRC protection algorithm for block data is a 16 bit CCITT polynomial.
Figure 8: Response token format
In the CMD line the MSB bit is transmitted first the LSB bit is the last.
When the wide bus option is used, the data is transferred 4 bits at a time (refer to Figure 10). Start and end bits, as
well as the CRC bits, are transmitted for every one of the DAT lines. CRC bits are calculated and checked for every
DAT line individually. The CRC status response and Busy indica-tion will be sent by the card to the host on DAT0 only
(DAT1-DAT3 during that period are don’t care).
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TS2GSD1
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2GB 150x Secure Digital Card
SPI bus
While the SD channel is based on command and data bit streams which are initiated by a start bit and terminated by
a stop bit, the SPI channel is byte oriented. Every command or data block is built of 8-bit bytes and is byte aligned to
the CS signal (i.e. the length is a multiple of 8 clock cycles).
Similar to the SD protocol, the SPI messages consist of command, response and data-block tokens All
communication between host and cards is controlled by the host (master). The host starts every bus transaction by
asserting the CS signal low.
The response behavior in the SPI mode differs from the SD mode in the following three aspects:
• The selected card always responds to the command.
• Two new (8 & 16 bit) response structure is used
• When the card encounters a data retrieval problem, it will respond with an error response (which replaces the
expected data block) rather than by a time-out as in the SD mode.
In addition to the command response, every data block sent to the card during write operations will be responded
with a special data response token.
• Data Read
Single and multiple block read commands are supported in SPI mode. However, in order to comply with the SPI
industry standard, only two (unidirectional) signal are used. Upon reception of a valid read command the card will
respond with a response token followed by a data token of the length defined in a previous SET_BLOCKLEN
(CMD16) command. A multiple block read operation is terminated, similar to the SD protocol, with the
STOP_TRANSMISSION command.
Figure 11: Read operation
A valid data block is suffixed with a 16 bit CRC generated by the standard CCITT polynomial X16 +X12 +X5 +1.
In case of a data retrieval error, the card will not transmit any data. Instead, a special data error token will be sent to
the host Figure 12 shows a data read operation which terminated with an error token rather than a data block.
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TS2GSD1
50
2GB 150x Secure Digital Card
Figure 12: Read operation - data error
• Data Write
Single and multiple block write operations are supported in SPI mode. Upon reception of a valid write command, the
card will respond with a response token and will wait for a data block to be sent from the host. CRC suffix, block
length and start address restrictions are identical to the read operation (see Figure 13).
Figure 13: Write operation
After a data block has been received, the card will respond with a data-response token. If the data block has been
received without errors, it will be programmed. As long as the card is busy programming, a continuous stream of busy
tokens will be sent to the host (effectively holding the DataOut line low).
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TS2GSD1
50
2GB 150x Secure Digital Card
Card Registers
1. OCR Register
The 32-bit operation conditions register stores the VDD voltage profile of the card. In addition, this register includes a
status information bit. This status bit is set if the card power up procedure has been finished. The OCR register shall
be implemented by all cards. The supported voltage range is coded as shown in the following table. As long as the
card is busy, the corresponding bit (31) is set to LOW.
OCR bit
[6:0]
VDD voltage window
Reserved
SD
000 0000 b
0 b
[7]
1.65V – 1.95V
2.0V – 2.6V
[14:8]
[23:15]
[30:24]
[31]
000 0000 b
1 1111 1111 b
000 0000 b
2.7V – 3.6V
Reserved
Card power status bit
(1) OCR bit [31] is set to LOW if the card has not finished the power up routine.
2. Card Identification Register (CID)
The Card IDentification (CID) register is 128 bits wide. It contains the card identification information used during the
card identification phase. Every individual flash or I/O card shall have an unique identification number. The structure
of the CID register is defined in the following
table
3. Driver Stage Register (DSR)
The 16-bit driver stage register is optionally used to improve the bus performance for extended operating
conditions.The CSD register carries the information about the DSR register usage. This register is not implemented
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TS2GSD1
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2GB 150x Secure Digital Card
4. Relative Card Address Register (RCA)
The writable 16-bit relative card address register carries the card address assigned by the host during the card
identification. This address is used for the addressed host-card communication after the card identification procedure.
The default value of the RCA register is 0x0001. The value 0x0000 is reserved to set all cards into the Stand-by State
with CMD7. In SD mode, the value of this register is generated by random number generator inside the card. Please
reference to SD specification for detail information.
5. Card Specific Data Register (CSD)
The Card-Specific Data register provides information on how to access the card contents. The CSD defines the data
format, error correction type, maximum data access time, data transfer speed, whether the DSR register can be used
etc. The programmable part of the register can be changed by CMD27.
CSD bit
[127:126]
[125:120]
[119:112]
[111:104]
[103:96]
[95:84]
[83:80]
[79]
Width
2
Name
Field
CSD_STRUCTURE
---
Value
00 b
---
Note
v1.0
CSD structure
6
Reserved
---
8
Data read access-time 1
Data read access-time 2
Max. bus clock freq.
Card command classes
Max. read data block length
Partial block read allowed
Write block misalignment
Read block misalignment
DSR implemented
TAAC
7F h
FF h
32 h
1F5 h
9 h
80 ms
25.5k clocks
25 MHz
(*1)
8
NSAC
8
TRAN_SPEED
CCC
12
4
READ_BL_LEN
READ_BL_PARTIAL
WRITE_BLK_MISALIGN
READ_BLK_MISALIGN
DSR_IMP
512 bytes
Support
Support
Support
Not support
---
1
1 b
[78]
1
1 b
[77]
1
1 b
[76]
1
0 b
[75:74]
[73:62]
[61:59]
[58:56]
[55:53]
[52:50]
[49:47]
[46]
2
Reserved
---
---
12
3
Device size
C_SIZE
(*2)
101 b
101 b
101 b
101 b
(*2)
0 b
(*2)
Max. R_curr @ VDD min
Max R_curr @ VDD max
Max W_curr @ VDD min
Max W_curr @ VDD max
Device size multiplier
Erase single block enable
Erase sector size
VDD_R_CURR_MIN
VDD_R_CURR_MAX
VDD_W_CURR_MIN
VDD_W_CURR_MAX
C_SIZE_MULT
ERASE_BLK_EN
SECTOR_SIZE
WP_GRP_SIZE
WP_GRP_ENABLE
---
35 mA
45 mA
35 mA
45 mA
(*2)
3
3
3
3
1
Not allowed
(*3)
[45:39]
[38:32]
[31]
7
(*3)
(*4)
1 b
7
Write protect group size
Write protect group enable
Reserved
(*4)
1
Support
---
[30:29]
[28:26]
[25:22]
[21]
2
---
3
Write speed factor
R2W_FACTOR
WRITE_BL_LEN
WRITE_BL_PARTIAL
---
101 b
9 h
32X
4
Max. write data block length
Partial block write allowed
Reserved
512 bytes
Support
---
1
1 b
[20:16]
[15]
5
---
1
File format group
FILE_FORMAT_GRP
0 b
HD like FAT
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Transcend Information Inc.
TS2GSD1
50
2GB 150x Secure Digital Card
[14]
[13]
1
1
1
2
2
7
1
Copy flag
COPY
0 b
0 b
Not copied
Not protected
Not protected
HD like FAT
None
Permanent write protection PERM_WRITE_PROTECT
[12]
Temporary write protection
File format
TMP_WRITE_PROTECT
0 b
[11:10]
[9:8]
[7:1]
[0]
FILE_FORMAT
00 b
00 b
---
ECC code
ECC
CRC
---
CRC
---
Not used always ｀1
1 b
---
(*1) Support command class 0,2,4,5,6,7,8. Include : Basic, Block read/write, Erase, Write protection, application
command, and Lock card. Not support 1,3. Include : Stream read/write.
(*2)~(*4) This field is not a constant value. The value will be changed by different flash memory.
6. Extended CSD Register (EXT_CSD)
The Extended CSD register defines the card properties and selected modes. It is 512 bytes long.
The most significant 320 bytes are the Properties segment, which defines the card capabilities and cannot be
modified by the host. The lower 192 bytes are the Modes segment, which defines the configuration the card is
working in. These modes can be changed by the host by means of the SWITCH command.
7. SD card Configuration Register (SCR)
The CSD register is another configuration register in SD card. SCR provides on SD card s special features that were
configured into the given card. The size of SCR is 64 bit.
For SD card only. SCR is a read only register.
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TS2GSD1
50
2GB 150x Secure Digital Card
AC/DC Character
• General
Parameter
Peak voltage on all lines
All Inputs
Symbol
Min.
-0.3
Max.
Unit
V
Remark
VDD+0.3
Input Leakage Current
All Outputs
-10
-10
10
10
µA
µA
Output Leakage Current
• Power Supply Voltage
Parameter
Symbol
VDD
Min.
2.0
Max.
3.6
Unit
V
Remark
CMD0, 15,55,ACMD41
commands
Supply voltage
Supply voltage specified in OCR register
2.7
3.6
V
Except CMD0, 15,55,
ACMD41 commands
Supply voltage differentials (VSS1, VSS2
)
-0.3
0.3
V
Power up time
250
ms
From 0v to VDD Min.
• Bus Signal Line Load
The total capacitance CL the CLK line of the SD Memory Card bus is the sum of the bus master capacitance CHOST, the bus
capacitance CBUS itself and the capacitance CCARD of each card connected to this line:
CL = CHOST + CBUS + Ν*CCARD
Parameter
Bus signal line capacitance
Single card capacitance
Symbol
CL
Min.
10
Max.
100
10
Unit
pF
Remark
fPP ≤ 20 MHz, 7 cards
CCARD
pF
Maximum signal line inductance
Pull-up resistance inside card (pin1)
16
nH
kΩ
fPP ≤ 20 MHz
RDAT3
90
May be used for card
detection
Note that the total capacitance of CMD and DAT lines will be consist of CHOST, CBUS and one CCARD only since they are
connected separately to the SD Memory Card host.
Parameter
Pull-up resistance
Symbol
RCMD, RDAT
CL
Min.
10
Max.
100
Unit
kΩ
Remark
To prevent bus floating
fPP ≤ 5 MHz, 21 cards
Bus signal line capacitance
250
pF
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TS2GSD1
50
2GB 150x Secure Digital Card
• Bus Signal Levels
As the bus can be supplied with a variable supply voltage, all signal levels are related to the supply voltage.
To meet the requirements of the JEDEC specification JESD8-1A, the card input and output voltages shall be within the
following specified ranges for any VDD of the allowed voltage range:
Parameter
Output HIGH voltage
Output LOW voltage
Input HIGH voltage
Input LOW voltage
Symbol
VOH
Min.
Max.
Unit
V
Remark
0.75* VDD
IOH = -100 μA @VDD min
IOL = -100 μA @VDD min
VOL
0.125* VDD
VDD + 0.3
0.25* VDD
V
VIH
0.625* VDD
V
VIL
VSS – 0.3
V
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TS2GSD1
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2GB 150x Secure Digital Card
• Bus Timing (Default)
Parameter
Symbol
Min
Max.
Unit
Remark
Clock CLK (All values are referred to min (VIH) and max (VIL)
Clock frequency Data Transfer Mode
Clock frequency Identification Mode
(The low freq. is required for MultiMediaCard
compatibility.)
fPP
fOD
0
0
25
MHz CL ≤ 100 pF, (7 cards)
400
KHz CL ≤ 250 pF, (21 cards)
Clock low time
tWL
tWH
tTLH
10
50
10
50
ns
ns
ns
ns
ns
CL ≤ 100 pF, (7 cards)
CL ≤ 250 pF, (21 cards)
CL ≤ 100 pF, (7 cards)
CL ≤ 250 pF, (21 cards)
CL ≤ 100 pF, (7 cards)
Clock high time
Clock rise time
10
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TS2GSD1
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2GB 150x Secure Digital Card
50
10
50
ns
ns
ns
CL ≤ 250 pF, (21 cards)
CL ≤ 100 pF, (7 cards)
CL ≤ 250 pF, (21 cards)
Clock fall time
tTHL
Inputs CMD, DAT (referenced to CLK)
Input set-up time
tISU
tIH
5
5
ns
ns
CL ≤ 25 pF, (1 cards)
Input hold time
CL ≤ 25 pF, (1 cards)
Outputs CMD, DAT (referenced to CLK)
Output Delay time during Data Transfer Mode
Output Delay time during Identification Mode
tODLY
tODLY
0
0
14
50
ns
ns
CL ≤ 25 pF, (1 cards)
CL ≤ 25 pF, (1 cards)
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TS2GSD1
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2GB 150x Secure Digital Card
• Bus Timing (High Speed Mode)
Parameter
Symbol
Min
Max.
50
Unit
Remark
Clock CLK (All values are referred to min (VIH) and max (VIL)
Clock frequency Data Transfer Mode
Clock low time
fPP
0
7
MHz
ns
tWL
Clock high time
tWH
tTLH
tTHL
7
ns
ns
ns
Clock rise time
3
3
Clock fall time
Inputs CMD, DAT (referenced to CLK)
Input set-up time
tISU
tIH
6
2
ns
ns
Input hold time
Outputs CMD, DAT (referenced to CLK)
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TS2GSD1
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2GB 150x Secure Digital Card
Output Delay time during Data Transfer Mode
Output Hold time
tODLY
tOH
14
40
ns
ns
pF
2.5
Total System capacitance for each line
CL
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TS2GSD1
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2GB 150x Secure Digital Card
Reliability and Durability
Temperature
Operation: -25°C / 85°C (Target spec)
Storage: -40°C (168h) / 85°C (500h)
Junction temperature: max. 95°C
Operation: 25°C / 95% rel. humidity
Storage: 40°C / 93% rel. hum./500h
Moisture and corrosion
Salt Water Spray: 3% NaCl/35C; 24h acc. MIL STD Method 1009
Durability
10.000 mating cycles;
Bending
10N
Torque
0.15N.m or +/-2.5 deg
Drop test
1.5m free fall
UV light exposure
Visual inspection
Shape and form
UV: 254nm, 15Ws/cm² according to ISO 7816-1
No warp page; no mold skin; complete form; no cavities surface smoothness <=
-0.1 mm/cm² within contour; no cracks; no pollution (fat, oil dust, etc.)
Minimum moving force of WP witch 40gf
WP Switch cycles
minimum 1000 Cycles(@Slide force 0.4N to 5N)
Above technical information is based on SD1.1 standard specification and tested to be reliable. However, Transcend
makes no warranty, either expressed or implied, as to its accuracy and assumes no liability in connection with the use of
this product. Transcend reserves the right to make changes in specifications at any time without prior notice.
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