TS128M~
2GSDM
miniSD Memory Card
• Bus Timing
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)
KHz CL ≤ 250 pF, (21 cards)
400
Clock low time
tWL
tWH
tTLH
tTHL
10
50
10
50
ns
ns
ns
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)
CL ≤ 250 pF, (21 cards)
CL ≤ 100 pF, (7 cards)
CL ≤ 250 pF, (21 cards)
Clock high time
Clock rise time
Clock fall time
10
50
10
50
Inputs CMD, DAT (referenced to CLK)
Input set-up time
tISU
tIH
5
5
ns
ns
CL ≤ 25 pF, (1 cards)
CL ≤ 25 pF, (1 cards)
Input hold time
Outputs CMD, DAT (referenced to CLK)
Output Delay time
tODLY
0
14
ns
CL ≤ 25 pF, (1 cards)
5
Transcend Information Inc.
TRANSCEND [ TRANSCEND INFORMATION. INC. ]
