User's Manual
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4~32GB High Capacity Secure Digital Card
Transcend Information Inc. 
1
Description 
Transcend High Capacity SD 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 SD memory card.
Placement 
   Front Back 
Features 
• RoHS compliant product. 
• Card Lid material: PC (comply with UL94,Flame 
Class:HB) 
• 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 
• Mechanical Write Protection Switch 
• Supports Speed Class Specification up to Class 6 
• Supports Copy Protection for Recorded Media (CPRM) 
for SD-Audio 
• Seamless compatibility with SDMI-compliant digital audio 
devices 
• Form Factor: 24mm x 32mm x 2.1mm 
Pin Definition 
SD Mode  SPI Mode 
Pin No. 
Name  Type  Description  Name Type Description 
1 
CD/DAT
I/O/PP
3
Card Detect/Data Line [Bit3] 
CS I 
Chip Select (neg true) 
2 
CMD PP Command/Response 
DI I 
Data In 
3 
V
SS1
S  Supply voltage ground 
VSS S 
Supply voltage ground 
4 
V
DD
S Supply voltage 
VDD S 
Supply voltage 
5 
CLK I Clock 
SCLK I 
Clock 
6 
V
SS2
S  Supply voltage ground 
VSS2 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 
9 
DAT2 
I/O/PP  Data Line [Bit2]  RSV     










