LSM303DLH Datasheet, PDF (14/47 Pages) STMicroelectronics – Sensor module: 3-axis accelerometer and 3-axis magnetometer

Module specifications
LSM303DLH
2.3
Communication interface characteristics
2.3.1
Accelerometer sensor I²C - inter IC control interface
Subject to general operating conditions for Vdd and top.
Table 5. I²C slave timing values
Symbol
Parameter
I²C standard mode ⁽¹⁾
Min
Max
f_(SCL)
t_w(SCLL)
t_w(SCLH)
t_su(SDA)
t_h(SDA)
SCL clock frequency
SCL clock low time
SCL clock high time
SDA setup time
SDA data hold time
0
100
4.7
4.0
250
0.01
3.45
t_r(SDA) t_r(SCL) SDA and SCL rise time
1000
t_f(SDA) t_f(SCL) SDA and SCL fall time
300
t_h(ST)
START condition hold time
4
t_su(SR)
Repeated START condition
setup time
4.7
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.
2. Cb = total capacitance of one bus line, in pF.
I²C fast mode ⁽¹⁾
Min
Max
0
400
1.3
0.6
100
0.01
0.9
20 + 0.1C_b(2)
300
20 + 0.1C_b(2)
300
0.6
0.6
0.6
1.3
Unit
KHz
µs
ns
µs
ns
µs
Figure 3. I²C slave timing diagram ^(b)
67$57
6'$
5(3($7('
67$57
WVX65
WZ6365
67$57
WI6'$
6&/
WU6'$
WVX6'$
WK6'$
WVX63
6723
WK67 WZ6&//
WZ6&/+
WU6&/
WI6&/
14/47
b. Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both port.
Doc ID 16941 Rev 1