LSM303C Datasheet, PDF (15/53 Pages) –

LSM303C
Module specifications
2.4.2
I²C - inter-IC control interface
Subject to general operating conditions for Vdd and Top.
Symbol
Table 7. 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
START
SDA
REPEATED
START
tsu(SR)
tw(SP:SR)
START
SCL
tsu(SDA)
th(SDA)
tsu(SP)
STOP
th(ST)
tw(SCLL)
tw(SCLH)
Note:
Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.
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