HD Video Card Series Datasheet
HD Video Card Series
4GB~16GB SDHC6 HD Video Card
Transcend Information Inc. 
6
• Bus Timing 
Parameter  Symbol Min  Max.  Unit  Remark 
Clock CLK (All values are referred to min (V
IH
) and max (V
IL
) 
Clock frequency Data Transfer Mode  f
PP 
0 25 MHz C
CARD
 ≤ 10 pF, (1 card) 
Clock frequency Identification Mode  f
OD 
0
(1)
/100 400 KHz C
CARD
 ≤ 10 pF, (1 card) 
Clock low time  t
WL 
10 ns C
CARD
 ≤ 10 pF, (1 card) 
Clock high time  t
WH 
10 ns C
CARD
 ≤ 10 pF, (1 card) 
Clock rise time  t
TLH
  10 ns C
CARD
≤ 
10 pF, (1 card) 
Clock fall time  t
THL
  10 ns C
CARD
≤ 
10 pF, (1 card) 
Inputs CMD, DAT (referenced to CLK) 
Input set-up time  t
ISU 
5 ns C
CARD
≤ 
10 pF, (1 card) 
Input hold time  t
IH 
5 ns C
CARD
≤ 
10 pF, (1 card) 
Outputs CMD, DAT (referenced to CLK) 










