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QST104 Datasheet(PDF) 39 Page - STMicroelectronics

Part # QST104
Description  Capacitive touch sensor device 4 keys with individual key state outputs or I2C interface
PDF  45 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

QST104 Datasheet(HTML) 39 Page - STMicroelectronics

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QST104
Electrical characteristics
39/45
Figure 20.
Typical application with I2C bus and timing diagram
REPEATED START
START
STOP
START
tf(SDA)
tr(SDA)
tsu(SDA)
th(SDA)
tf(SCK)
tr(SCK)
tw(SCKL)
tw(SCKH)
th(STA)
tsu(STO)
tsu(STA)
tw(STO:STA)
SDA
SCL
4.7k
Ω
SDA
QST device
SCL
VDD
100
Ω
100
Ω
VDD
4.7k
Ω
I2CBUS



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