46.21 Peripheral Touch Controller (PTC) Electrical Characteristics

Table 46-31. Peripheral Touch Controller (PTC) AC Electrical Specifications
AC CHARACTERISTICS				Standard Operating Conditions: VDDREG = VDDIO = AVDD 1.71V to 3.63V (unless otherwise stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics		Min.	Typ.	Max.	Units	Conditions
PTC_1	CLOAD SC ⁽¹⁾	Self Capacitance mode (PTC Channel Y0 - Y35)	Y0	—	—	65	—	Maximum sensor load capacitance ⁽¹⁾
PTC_1	CLOAD SC ⁽¹⁾	Self Capacitance mode (PTC Channel Y0 - Y35)	Y1-35	—	—	70	pF
PTC_3	CLOAD MC ⁽¹⁾	Mutual Capacitance mode (PTC Channel Y0 - Y35)		—	—	35	pF
PTC_4A	fPTC ⁽²⁾	PTC frequency		—	—	4	MHz	—
PTC_4B	Twarm	Warm-up time		—	—	500 PTC clock cycles	µs	—
Note: Maximum capacitive load that the PTC circuitry can compensate for each channel. fPTC = GCLK_PTC / PTC prescaler.