STM8T143 STMicroelectronics, STM8T143 Datasheet - Page 26

• Manufacturer Part Number: STM8T143
• Description: Single-channel capacitive sensor for touch and proximity detection
• Manufacturer: STMicroelectronics

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Debounce filter
The purpose of the debounce filter mechanism is to reduce the effects of noise on the touch
and proximity detection. Debouncing is applied to acquisition samples to filter undesired
abrupt changes. The principle is to wait for several consecutive acquisitions with the signal
on the same side of a threshold before reporting the change in detection state induced by
this threshold crossing.
The number of consecutive detection debounce counts (DDC) and end of detection
debounce counts (EDDC) needed to identify a proximity/touch detection are defined in
Section 9.5: Capacitive sensing characteristics on page
Doc ID 18315 Rev 3
42.
STM8T143