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L3GD20H 数据表(PDF) 14 Page - STMicroelectronics

部件名 L3GD20H
功能描述  MEMS motion sensor: three-axis digital output gyroscope
PDF  52 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L3GD20H 数据表(HTML) 14 Page - STMicroelectronics

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Mechanical and electrical specifications
L3GD20H
14/52
DocID023469 Rev 2
2.4.2
I2C - Inter IC control interface
Subject to general operating conditions for Vdd and Top.
Figure 4. I2C slave timing diagram(e)
Table 7. I2C slave timing values
Symbol
Parameter
I2C standard mode(1)
I2C fast mode (1)
Unit
Min.
Max.
Min.
Max.
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
3.45
0
0.9
μs
t
r(SDA)
t
r(SCL)
SDA and SCL rise time
1000
20 + 0.1C
b
(2)
300
ns
t
f(SDA)
t
f(SCL)
SDA and SCL fall time
300
20 + 0.1C
b
(2)
300
t
h(ST)
START condition hold time
4
0.6
μs
t
su(SR)
Repeated START condition
setup time
4.7
0.6
t
su(SP)
STOP condition setup time
4
0.6
t
w(SP:SR)
Bus free time between STOP
and START condition
4.7
1.3
1.
Data based on standard I
2
C protocol requirement, not tested in production.
2.
Cb = total capacitance of one bus line, in pF.
e.
Measurement points are done at 0.2· Vdd_IO and 0.8· Vdd_IO, for both ports.
SDA
SCL
tf(SDA)
tsu(SP)
tw(SCLL)
tsu(SDA)
tr(SDA)
tsu(SR)
th(ST)
tw(SCLH)
th(SDA)
tr(SCL)
tf(SCL)
tw(SP:SR)
START
REPEATED
START
STOP
START



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