QST108 STMicroelectronics, QST108 Datasheet - Page 17

• Manufacturer Part Number: QST108
• Description: Capacitive Touch Sensor Device 8 Keys With Individual Key State Outputs Or I2c Interface
• Manufacturer: STMicroelectronics

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