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QST108 데이터시트(PDF) 18 Page - STMicroelectronics

부품명 QST108
상세설명  Capacitive touch sensor device 8 keys with individual key state outputs or I2C interface
PDF  51 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

QST108 데이터시트(HTML) 18 Page - STMicroelectronics

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Device operating modes
QST108
18/51
Output mode option
The QST108 offers several outputs mode to fit any existing application.
Table 7.
Output mode (OM) truth table
OPT6/OM
Description
VSS
Individual key state output mode: One output per sensing channel
VDD
BCD output mode: Binary-coded touched key number (see Table 8)(1)
1.
In BCD mode, the AKS function must be enabled.
Table 8.
Binary code truth table
KOUT4 KOUT3 KOUT2 KOUT1
Description
0
0
0
0
All released
0
0
0
1
Key 1 pressed
0
0
1
0
Key 2 pressed
0
0
1
1
Key 3 pressed
0
1
0
0
Key 4 pressed
0
1
0
1
Key 5 pressed
0
1
1
0
Key 6 pressed
0
1
1
1
Key 7 pressed
1
0
0
0
Key 8 pressed
Other
Not used



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