Datasheet

38.8.4 32.768kHz Internal oscillator (OSC32K) Characteristics
Table 38-27. 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, +125]C,
over [1.62, 3.63]V
28.508 32.768 35.132 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 I - 0.67 1.9 μA
t
STARTUP
Startup time I - 1 2 cycle
Duty Duty Cycle I - 50 - %
38.8.5 Ultra Low Power Internal 32kHz RC Oscillator (OSCULP32K) Characteristics
Table 38-28. 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, +125]C, over [1.62,
3.63]V
25.559 32.768 40.305 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
Duty Duty cycle - 50 - %
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.
38.8.6 8MHz RC Oscillator (OSC8M) Characteristics
Table 38-29. Internal 8MHz RC Oscillator Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
f
OUT
Output frequency ICalibrated against a 8MHz reference at
25°C, over [-40, +125]C, over [1.62,
3.63]V
7.65 8 8.17 MHz
Calibrated against a 8MHz reference at
25°C, at V
DD
=3.3V
7.94 8 8.06
Calibrated against a 8MHz reference at
25°C, over [1.62, 3.63]V
7.92 8 8.08
SAM D21 Family
Electrical Characteristics at 105°C
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 1061