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HTS221 Datasheet(PDF) 9 Page - STMicroelectronics

Part # HTS221
Description  Capacitive digital sensor for relative humidity and temperature
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HTS221 Datasheet(HTML) 9 Page - STMicroelectronics

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HTS221
Sensor parameters and electrical specifications
33
2.1
Communication interface characteristics
2.1.1
SPI - serial peripheral interface
Subject to general operating conditions for VDD and TOP
Figure 3. SPI slave timing diagram
Note:
Measurement points are done at 0.2·VDD and 0.8·VDD, for both ports.
Table 5. SPI slave timing values
Symbol
Parameter
Value (1)
1. Values are guaranteed at 10 MHz clock frequency for SPI, based on characterization results, not tested in
production.
Unit
Min.
Max.
tc(SPC)
SPI clock cycle
100
ns
fc(SPC)
SPI clock frequency
10
MHz
tsu(CS)
CS setup time
6
ns
th(CS)
CS hold time
8
tsu(SI)
SDI input setup time
5
th(SI)
SDI input hold time
15
tv(SO)
SDO valid output time
50
th(SO)
SDO output hold time
9
tdis(SO)
SDO output disable time
50



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