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LIS331DL データシート(PDF) 12 Page - STMicroelectronics

部品番号 LIS331DL
部品情報  MEMS motion sensor 3-axis - ±2g/±8g smart digital output ?쐍ano??accelerometer
PDF  38 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LIS331DL データシート(HTML) 12 Page - STMicroelectronics

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Mechanical and electrical specifications
LIS331DL
12/38
2.3.2
I2C interface
Subject to general operating conditions for Vdd and top.
Table 5.
I2C Slave timing values
Figure 5.
I2C slave timing diagram (4)
Note:
1
Data based on standard I2C protocol requirement, not tested in production
2
A device must internally provide an hold time of at least 300ns for the SDA signal (referred to
VIHmin of the SCL signal) to bridge the undefined region of the falling edge of SCL
3
Cb = total capacitance of one bus line, in pF
4
Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both port
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
tw(SCLL)
SCL clock low time
4.7
1.3
µs
tw(SCLH)
SCL clock high time
4.0
0.6
tsu(SDA)
SDA setup time
250
100
ns
th(SDA)
SDA data hold time
0
3.45(2)
00.9(2)
µs
tr(SDA) tr(SCL)
SDA and SCL rise time
1000
20 + 0.1Cb
(3)
300
ns
tf(SDA) tf(SCL)
SDA and SCL fall time
300
20 + 0.1Cb
(3)
300
th(ST)
START condition hold time
4
0.6
µs
tsu(SR)
Repeated START condition
setup time
4.7
0.6
tsu(SP)
STOP condition setup time
4
0.6
tw(SP:SR)
Bus free time between STOP
and START condition
4.7
1.3
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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