Datasheet

37.13.4 32.768kHz Internal oscillator (OSC32K) Characteristics
Table 37-55. 32kHz RC Oscillator Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
f
OUT
Output frequency Calibrated against a 32.768kHz
reference at 25°C, over [-40, +85]C,
over [1.62, 3.63]V
28.508 32.768 34.734 kHz
Calibrated against a 32.768kHz
reference at 25°C, at V
DD
=3.3V
32.276 32.768 33.260
Calibrated against a 32.768kHz
reference at 25°C, over [1.62, 3.63]V
31.457 32.768 34.079
I
OSC32K
Current consumption - 0.67 1.31 μA
t
STARTUP
Start-up time - 1 2 cycle
Duty Duty Cycle - 50 - %
37.13.5 Ultra Low Power Internal 32kHz RC Oscillator (OSCULP32K) Characteristics
Table 37-56. Ultra Low Power Internal 32kHz RC Oscillator Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
f
OUT
Output frequency Calibrated against a 32.768kHz
reference at 25°C, over [-40, +85]C,
over [1.62, 3.63]V
25.559 32.768 38.011 kHz
Calibrated against a 32.768kHz
reference at 25°C, at V
DD
=3.3V
31.293 32.768 34.570
Calibrated against a 32.768kHz
reference at 25°C, over [1.62,
3.63]V
31.293 32.768 34.570
i
OSCULP32K
(1)(2)
- - 125 nA
t
STARTUP
Start-up time - 10 - cycles
Duty Duty Cycle - 50 - %
Notes: 1. These values are based on simulation. These values are not covered by test limits in production
or characterization.
2. This oscillator is always on.
SAM D21 Family
Electrical Characteristics
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