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Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Hoja De Datos

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Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
Note:
1.
These values are based on simulation. These values are not covered by test limits in production or characterization
2.
See revC/revB errata concerning the DFLL48M.
32.10.4 32.768kHz Internal oscillator (OSC32K) Characteristics
Table 32-38. 32kHz RC Oscillator Characteristics
32.10.5 Ultra Low Power Internal 32kHz RC Oscillator (OSCULP32K) Characteristics
Table 32-39. Ultra Low Power Internal 32kHz RC Oscillator Characteristics
I
DFLL
Power consumption on V
DDANA
Open loop, Coarse calibrated
against 48MHz, FINE=128
-
100
-
µA
t
STARTUP
Startup time
Open loop after calibration
against 48MHz
f
OUT 
within 90% of final value
-
8
-
µs
t
LFINE
Fine lock time
Quick lock disabled, Chill
cycle disabled,
CSTEP=3,FSTEP=1,
f
REF 
= 32.768kHz
-
600
-
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
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
I
-
0.67
1.31
µA
t
STARTUP
Startup time
I
-
1
2
cycle
Duty
Duty Cycle
I
-
50
-
%
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