SAM D21/DA1 Family

39.8.5 Ultra Low-Power Internal 32 kHz RC Oscillator (OSCULP32K) Characteristics

Table 39-43. Ultra Low-Power Internal 32 kHz RC Oscillator Characteristics (Device Variant A)
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
f_OUT	Output frequency	Calibrated against a 32.768 kHz reference at 25°C, over [-40, +125]°C, over [1.62, 3.63]V	25.559	32.768	40.305	kHz
		Calibrated against a 32.768 kHz reference at 25°C, at V_DD = 3.3V	31.293	32.768	34.570
		Calibrated against a 32.768 kHz reference at 25°C, over [1.62, 3.63]V	31.293	32.768	34.570
i_OSCULP32K⁽¹⁾⁽²⁾			-	-	180	nA
t_STARTUP	Start-up time		-	10	-	cycles
Duty	Duty Cycle		-	50	-	%

Table 39-44. Ultra Low-Power Internal 32 kHz RC Oscillator Characteristics (Device Variant B, C, D and L)
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
f_OUT	Output frequency	Calibrated against a 32.768 kHz reference at 25°C, over [-40, +125]°C, over [1.62, 3.63]V	25.559	32.768	40.305	kHz
		Calibrated against a 32.768 kHz reference at 25°C, at V_DD = 3.3V	31.293	32.768	34.570
		Calibrated against a 32.768 kHz reference at 25°C, over [1.62, 3.63]V	31.293	32.768	34.570
Duty	Duty Cycle		-	50	-	%

Note:

These values are based on simulation, and are not covered by test limits in production or characterization.
This oscillator is always on.

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