I3G4250D Datasheet, PDF (13/43 Pages) STMicroelectronics – 3-axis digital output gyroscope

I3G4250D
Mechanical and electrical characteristics
2.4.2
I²C - inter IC control interface
Subject to general operating conditions for Vdd and Top.
Symbol
Table 8. I²C slave timing values
Parameter
I²C standard mode⁽¹⁾
Min.
Max.
f_(SCL)
SCL clock frequency
0
100
t_w(SCLL) SCL clock low time
4.7
t_w(SCLH) SCL clock high time
4.0
t_su(SDA)
SDA setup time
250
t_h(SDA)
SDA data hold time
0
t_h(ST)
START condition hold time
4
t_su(SR)
Repeated START condition
setup time
4.7
3.45
t_su(SP)
STOP condition setup time
4
t_w(SP:SR)
Bus free time between STOP
and START condition
4.7
1. Data based on standard I²C protocol requirement; not tested in production.
I²C fast mode⁽¹⁾
Min.
Max.
0
400
1.3
0.6
100
0
0.9
0.6
0.6
0.6
1.3
Unit
kHz
μs
ns
μs
μs
Figure 5. I²C slave timing diagram
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Note:
Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.
DocID027628 Rev 2
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