ST7628
11.3Serial Interface Characteristics (3-pin Serial)
Figure 11.6 3-pin Serial Interface Characteristics
(VSS=0V, VDDI=1.65V to 3.0V, VDDA=2.4V to 3.3V,Ta =25°C)
Signal
Symbol
TCHW
TCSS
TCSH
TSCC
TSCYCW
TSHW
TSLW
TSCYCR
TSHR
TSLR
TSDS
TSDH
TACC
TOH
Parameter
/CS “H” pulse width
MIN MAX Unit
Description
45
60
65
20
100
35
35
150
60
60
60
60
10
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
/CS-SCL setup time(Write)
/CS-SCL hold time(Write)
Chip select setup time
Serial clock cycle (Write)
SCL “H” pulse width (Write)
SCL “L” pulse width (Write)
Serial clock cycle (Read)
SCL “H” pulse width (Read)
SCL “L” pulse width (Read)
Data setup time
/CS
SCL
SI
(DIN)
(DOUT)
Data hold time
Access time
Output disable time
100
50
For maximum CL=30pF
For minimum CL=8pF
Ver 1.4
195/213
2008/08
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
