Datasheet
...........continued
Symbol Parameter Conditions Min. Typ. Max. Units
t
LOCK
Lock time f
REF
= 32 .768kHz
DFLLVAL.COARSE = DFLL48M
COARSE CAL
DFLLVAL.FINE = 512
DFLLCTRL.BPLCKC = 1
DFLLCTRL.QLDIS = 0
DFLLCTRL.CCDIS = 1
DFLLMUL.FSTEP = 10
- 200 500 μs
39.8.4 32.768kHz Internal oscillator (OSC32K) Characteristics
Table 39-41. 32kHz RC Oscillator Characteristics (Device Variant A)
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 35.389 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 - 0.79 1.80 μA
t
STARTUP
Start-up time - 1 2 cycle
Duty Duty Cycle - 50 - %
Table 39-42. 32kHz RC Oscillator Characteristics (Device Variant B, C, D and L)
Symbol Parameter Conditions Min. Typ. Max. Units
f
OUT
Output frequency Calibrated against a 32.768kHz
reference at 25°C, over [-40, +85]C,
over [1.62, 3.63]V
28.508 32.768 35.389 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 2.80 μA
t
STARTUP
Start-up time - 1 2 cycle
Duty Duty Cycle - 50 - %
SAM D21 Family
Electrical Characteristics at 125°C
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 1093