LC898217XH Datasheet, PDF (8/9 Pages) ON Semiconductor – Auto Focus (AF) Controller & Driver

LC898217XH
8.2 AC specification
Figure 8.2 shows interface timing definition and Table 8.1 shows electric characteristics.
SDA
SCL
VIHmin
VILmax
tf
tLOW
tHD,DAT tSU,DAT
tHD,STA
Start
Condition
tr
tf
tSU,STA tHD,STA
VIHmin
VILmax
Repeated
Condition
Figure 8.2 2-wire serial interface timing definition
tBUF
tr
tSU,STO
Stop
Start
Condition Condition
Table 8.1 Electric characteritics for 2-wire serial interface (AC characteristics)
Item
Symbol Pin name
SCL clock frequency
START condition
hold time
SCL clock
Low period
SCL clock
High period
Setup time for repetition
START condition
Data hold time
FSCL
tHD, STA
tLOW
tHIGH
tSU, STA
tHD, DAT
Data setup time
SDA, SCL
rising time
SDA, SCL
falling time
STOP condition setup time
Bus free time between
STOP and START
tSU, DAT
tr
tf
tSU, STO
tBUF
SCL
SCL
SDA
SCL
SCL
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
Fast-mode
Min
Typ
Max
400
0.6
1.3
0.6
0.6
0*
0.9
100
300
300
0.6
1.3
Fast-mode Plus
Unit
Min
Typ
Max
1000 kHz
0.26
µs
0.5
µs
0.26
µs
0.26
µs
0*
µs
50
ns
120 ns
120 ns
0.26
µs
0.5
µs
* : LC898217XH is designed for a condition with typ. 20 ns of hold time. If SDA signal is unstable around falling point of SCL
signal, please implement an appropriate treatment on board, such as inserting a resistor.
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