Transcend Information Secure Digital Card SD80 - Manual (Page 7)

S S S D D D 8 8 8 0 0 0 s s s e e e r r r i i i e e e s s s
Rev1.2
SD80 Secure Digital Card
Transcend Information Inc. 7
• Bus Timing (High Speed Mode)
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 50 MHz
Clock low time t
WL
7 ns
Clock high time t
WH
7 ns
Clock rise time t
TLH
3 ns
Clock fall time t
THL
3 ns
Inputs CMD, DAT (referenced to CLK)
Input set-up time t
ISU
6 ns
Input hold time t
IH
2 ns
Outputs CMD, DAT (referenced to CLK)