SanDisk SDSDB-016G-A11 Product Manual page 29

Revision 2.2
3.4.6 Bus Timing (default)
Default dataIn/dataOut timing is illustrated in Figure 3-7; bus timing parameter values are
shown in Table 3-7.
Figure 3-7
Table 3-7
Clock (CLK) – all values referred to min. V
Clock Freq. Data Transfer Mode
Clock Freq. Identification Mode
Clock Low Time
Clock High Time
Clock Rise Time
Clock Fall Time
Clock Low Time
Clock High Time
Clock Rise Time
Clock Fall Time
Inputs CMD, DAT – referenced to CLK
Input setup time
Input hold time
Outputs CMD, DAT – referenced to CLK
9
Low frequency required for MMC compatibility.
10
0 Hz stops clock—given min. freq. range is for cases in which a continuous clock is required.
© 2004 SanDisk Corporation
Data In/Out Referenced to Clock Timing (default)
Bus Timing Parameter Values (default)
Parameter Symbol
f
PP
9
f
OD
t
WL
t
WH
t
TLH
t
THL
t
WL
t
WH
t
TLH
t
THL
t
ISU
t
IH
3-9
Chapter 3 – SD Card Interface Description
Min Max Unit
and max. V
IH IL
0 25 MHz
10
0 /10 400 kHz
0
10 --- ns
10 --- ns
--- 10 ns
--- 10 ns
50 --- ns
50 --- ns
--- 50 ns
--- 50 ns
5 --- ns
5 --- ns
SD Card Product Manual
Remark
C < 100 pF (7 cards)
L
C < 250 pF (21 cards)
L
C < 100 pF (7 cards)
L
C < 100 pF (7 cards)
L
C < 100 pF (10 cards)
L
C < 100 pF (7 cards)
L
C < 250 pF (21 cards)
L
C < 250 pF (21 cards)
L
C < 250 pF (21 cards)
L
C < 250 pF (21 cards)
L
C < 25 pF (1 card)
L
C < 25 pF (1 card)
L
12/08/04