ATXMEGA32D4-CU View Datasheet(PDF) - Atmel Corporation
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ATXMEGA32D4-CU Datasheet PDF : 136 Pages
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32.13 Clock and Oscillator Characteristics
32.13.1 Calibrated 32.768kHz Internal Oscillator characteristics
Table 32-19. 32.768kHz internal oscillator characteristics.
Symbol Parameter
Condition
Frequency
Factory calibration accuracy
User calibration accuracy
T = 85°C, VCC = 3.0V
XMEGA D4
Min.
-0.5
-0.5
Typ.
32.768
Max.
0.5
0.5
Units
kHz
%
32.13.2 Calibrated 2MHz RC Internal Oscillator characteristics
Table 32-20. 2MHz internal oscillator characteristics.
Symbol Parameter
Condition
Min.
Frequency range
DFLL can tune to this frequency over
voltage and temperature
1.8
Factory calibrated frequency
Factory calibration accuracy
T = 85°C, VCC= 3.0V
-1.5
User calibration accuracy
-0.2
DFLL calibration stepsize
Typ.
2.0
0.21
Max.
2.2
Units
MHz
1.5
0.2
%
32.13.3 Calibrated and tunable 32MHz internal oscillator characteristics
Table 32-21. 32MHz internal oscillator characteristics.
Symbol Parameter
Condition
Min.
Frequency range
DFLL can tune to this frequency over
voltage and temperature
30
Factory calibrated frequency
Factory calibration accuracy
T = 85°C, VCC= 3.0V
-1.5
User calibration accuracy
-0.2
DFLL calibration step size
Typ.
32
0.22
Max.
55
Units
MHz
1.5
0.2
%
32.13.4 32kHz Internal ULP Oscillator characteristics
Table 32-22. 32kHz internal ULP oscillator characteristics.
Symbol Parameter
Condition
Output frequency
Accuracy
Min.
-30
Typ.
Max. Units
32
kHz
30
%
75
8135L–AVR–06/12
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