Advantech SQF-MSDS1-2G-85E Technical Manual page 15

 microSD Interface Timing (High-Speed Mode)
Parameter
Clock frequency Data Transfer
Mode
Clock low time
Clock high time
Clock rise time
Clock fall time
Input set-up time
Input hold time
Output Delay time during Data
Transfer Mode
Output Hold time
Total System capacitance of
each line¹
(1) In order to satisfy severe timing, host shall drive only one card.
Specifications subject to change without notice, contact your sales representatives for the most update information.
REV 0.3
Card Input Timing (High Speed Card)
Card Output Timing (High Speed Mode)
Symbol
Clock CLK (All values are referred to min(V
f
PP
t
WL
t
WH
t
TLH
t
THL
Inputs CMD, DAT (referenced to CLK)
t
ISU
t
IH
Outputs CMD, DAT (referenced to CLK)
t
ODLY
T
OH
C
L
Industrial Class 10 Micro SD Card
Min Max
0 50
7
7
3
3
6
2
14
2.5
40
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SQFlash
Unit Remark
) and max(V )
IH IL
C
card
MHz
(1 card)
C
card
ns
(1 card)
C
card
ns
(1 card)
C
card
ns
(1 card)
C
card
ns
(1 card)
C
card
ns
(1 card)
C
card
ns
(1 card)
C
L
ns
(1 card)
C
L
ns
(1 card)
C
L
pF
(1 card)
≤ 10 pF
≤ 10 pF
≤ 10 pF
≤ 10 pF
≤ 10 pF
≤ 10 pF
≤ 10 pF
≤ 40 pF
≤ 15 pF
≤ 15 pF
May. 4, 2016