MICROSDHC Datasheet, PDF (6/25 Pages) Transcend Information. Inc. – High Capacity microSD Card

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• Bus Timing
High Capacity microSD Card
Parameter
Symbol Min
Clock CLK (All values are referred to min (V_IH) and max (V_IL)
Clock frequency Data Transfer Mode
f_PP
0
Clock frequency Identification Mode
f_OD
0₍₁₎/100
Clock low time
t_WL
10
Clock high time
t_WH
10
Clock rise time
t_TLH
Clock fall time
t_THL
Inputs CMD, DAT (referenced to CLK)
Input set-up time
Input hold time
Outputs CMD, DAT (referenced to CLK)
t_ISU
5
t_IH
5
Transcend Information Inc.
6
Max.
25
400
10
10
Unit
Remark
MHz
KHz
ns
ns
ns
ns
C_CARD ≤ 10 pF, (1 card)
C_CARD ≤ 10 pF, (1 card)
C_CARD ≤ 10 pF, (1 card)
C_CARD ≤ 10 pF, (1 card)
C_CARD ≤ 10 pF, (1 card)
C_CARD ≤ 10 pF, (1 card)
ns C_CARD ≤ 10 pF, (1 card)
ns C_CARD ≤ 10 pF, (1 card)