Datasheet

Figure 5-14. Timing diagram data input/output referenced to clock (Default)
- 27 -
datasheet SD Card
Rev. 1.0
MMBTFxxGWBCA-xMExx
5.5.6 Bus Timing (Default Mode)
[Table 5-6] : Bus Timing - Parameter Values (Default)
NOTE:
1) OHz means to stop the clock. The given minimum frequency range is for cases where a continuous clock is required
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
025MHz
C
CARD
<= 10 pF (1 card)
Clock frequency Identification Mode
f
OD
0
1)
/ 100
400 kHz
C
CARD
<= 10 pF (1 card)
Clock low time
t
WL
10 ns
C
CARD
<= 10 pF (1 card‘s)
Clock high time
t
WH
10 ns
C
CARD
<= 10 pF (1 card)
Clock rise time
t
TLH
10 ns
C
CARD
<= 10 pF (1 card)
Clock fall time
t
THL
10 ns
C
CARD
<= 10 pF (1 card)
Inputs CMD, DAT (referenced to CLK)
Input set-up time
t
ISU
5ns
C
CARD
<= 10 pF (1 card)
Input hold time
t
IH
5ns
C
CARD
<= 10 pF (1 card)
Outputs CMD, DAT (referenced to CLK)
Output delay time during Data Transfer Mode
t
ODLY
014ns
C
L
<= 40 pF (1 card)
Output delay time during Identification Mode
t
ODLY
050ns
C
L
<= 40 pF (1 card)
V
IH
V
IL
V
OL
V
IH
V
IL
V
OH
Shaded areas are not valid
Clock
Output
f
PP
t
WL
t
WH
t
TLH
t
IH
t
ISU
t
THL
t
ODLY(max)
t
ODLY (min)