T
T
TS
S
S2
2
2G
G
GS
S
SD
D
D1
1
15
5
50
0
0
2GB 150x Secure Digital Card
Transcend Information Inc.
13
• 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 fPP 0 25 MHz CL ≤ 100 pF, (7 cards)
Clock frequency Identification Mode
(The low freq. is required for MultiMediaCard
compatibility.)
fOD 0 400 KHz CL ≤ 250 pF, (21 cards)
tWL 10 ns CL ≤ 100 pF, (7 cards) Clock low time
50 ns CL ≤ 250 pF, (21 cards)
tWH 10 ns CL ≤ 100 pF, (7 cards) Clock high time
50 ns CL ≤ 250 pF, (21 cards)
Clock rise time tTLH 10 ns CL ≤ 100 pF, (7 cards)