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HTS221 датащи(PDF) 10 Page - STMicroelectronics

номер детали HTS221
подробное описание детали  Capacitive digital sensor for relative humidity and temperature
PDF  33 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HTS221 датащи(HTML) 10 Page - STMicroelectronics

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Sensor parameters and electrical specifications
HTS221
10/33
DocID026333 Rev 4
2.1.2
I²C - control interface
Subject to general operating conditions for VDD and TOP.
Figure 4. I²C slave timing diagram
Note:
Measurement points are done at 0.2·VDD and 0.8·VDD, for both ports.
Table 6. I²C slave timing values
Symbol
Parameter (1)
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
0.01
3.45
0
0.9
μs
tr(SDA) tr(SCL) SDA and SCL rise time
1000
20 + 0.1Cb (2)
300
ns
tf(SDA) tf(SCL) SDA and SCL fall time
300
20 + 0.1Cb (2)
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
1. Data based on standard I²C protocol requirement, not tested in production.
2. Cb = total capacitance of one bus line, in pF.



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