SDHC Card series
4~32GB High Capacity 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 CCARD ≤ 10 pF, (1 card)
tWL
ns
CCARD ≤ 10 pF, (1 card)
Clock high time
tWH
tTLH
tTHL
7
ns
ns
ns
CCARD ≤ 10 pF, (1 card)
CCARD ≤ 10 pF, (1 card)
CCARD ≤ 10 pF, (1 card)
Clock rise time
3
3
Clock fall time
Inputs CMD, DAT (referenced to CLK)
Input set-up time
tISU
tIH
6
2
ns
ns
CCARD ≤ 10 pF, (1 card)
CCARD ≤ 10 pF, (1 card)
Input hold time
Outputs CMD, DAT (referenced to CLK)
8
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