LSM330DL Datasheet, PDF (15/54 Pages) STMicroelectronics – Linear sensor module 3D accelerometer sensor and 3D gyroscope sensor

LSM330DL
Module specifications
2.4.2
I²C - inter-IC control interface
The values given in the following table are subject to the general operating conditions for
Vdd and T_OP.
Table 7. I²C slave timing values
Symbol
Parameter⁽¹⁾
I²C standard mode
Min
Max
I²C fast mode ⁽¹⁾
Min
Max
Unit
f_(SCL)
SCL clock frequency
0
100
0
400
kHz
t_w(SCLL) SCL clock low time
4.7
1.3
µs
t_w(SCLH) SCL clock high time
4.0
0.6
t_su(SDA) SDA setup time
250
100
ns
t_h(SDA) SDA data hold time
0.01
3.45
0
0.9
µs
t_r(SDA) t_r(SCL) SDA and SCL rise time
t_f(SDA) t_f(SCL) SDA and SCL fall time
1000 20 + 0.1C_b ⁽²⁾
300
ns
300 20 + 0.1C_b ⁽²⁾
300
t_h(ST)
START condition hold time
4
0.6
t_su(SR) Repeated START condition setup time 4.7
0.6
t_su(SP)
STOP condition setup time
4
0.6
µs
t_w(SP:SR)
Bus free time between STOP and
START condition
4.7
1.3
1. SCL (SCL_A/G pin), SDA (SDA_A/G pin)
Figure 4. I²C slave timing diagram ⁽³⁾
SDA
START
REPEATED
START
t_su(SR)
tw(SP:SR)
START
t_f(SDA)
SCL
t_r(SDA)
t_su(SDA)
th(SDA)
t_su(SP)
STOP
th(ST) tw(SCLL)
tw(SCLH)
tr(SCL)
tf(SCL)
1. Data based on standard I²C protocol requirement, not tested in production.
2 Cb = total capacitance of one bus line, in pF
3. Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.
AM09238V1
Doc ID 022018 Rev 1
15/54