Si4730/31/34/35-D60
Table 5. 3-Wire Control Interface Characteristics
(VA = 2.7 to 5.5 V, VD = 1.62 to 3.6 V, TA = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
SCLK Frequency
SCLK High Time
SCLK Low Time
SDIO Input, SEN to SCLKSetup
SDIO Input to SCLKHold
SEN Input to SCLKHold
SCLKto SDIO Output Valid
SCLKto SDIO Output High Z
SCLK, SEN, SDIO, Rise/Fall time
fCLK
tHIGH
tLOW
tS
tHSDIO
tHSEN
tCDV
tCDZ
tR, tF
Read
Read
0
—
2.5
MHz
25
—
—
ns
25
—
—
ns
20
—
—
ns
10
—
—
ns
10
—
—
ns
2
—
25
ns
2
—
25
ns
—
—
10
ns
Note: When selecting 3-wire mode, the user must ensure that a rising edge of SCLK does not occur within 300 ns before the
rising edge of RST.
SCLK 70%
30%
SEN 70%
30%
tR
tF
tS
tHSDIO
tHIGH
tLOW
tS
tHSEN
SDIO 70%
30%
A6-A5,
A7
R/W,
A0
A4-A1
D15
D14-D1
D0
Address In
Data In
Figure 4. 3-Wire Control Interface Write Timing Parameters
SCLK 70%
30%
tS
SEN 70%
30%
tHSDIO
tS
tCDV
tHSEN
tCDZ
70%
SDIO
30%
A6-A5,
A7
R/W,
A0
A4-A1
D15
D14-D1
D0
Address In
½ Cycle Bus
Turnaround
Data Out
Figure 5. 3-Wire Control Interface Read Timing Parameters
10
Rev. 1.2