Datasheet

75
XMEGA C4 [DATASHEET]
8493G–AVR–01/2014
33.1.13 Clock and Oscillator Characteristics
33.1.13.1 Calibrated 32.768kHz Internal Oscillator characteristics
Table 33-19. 32.768kHz internal oscillator characteristics.
33.1.13.2Calibrated 2MHz RC Internal Oscillator characteristics
Table 33-20. 2MHz internal oscillator characteristics.
33.1.13.3Calibrated and tunable 32MHz internal oscillator characteristics
Table 33-21. 32MHz internal oscillator characteristics.
33.1.13.432kHz Internal ULP Oscillator characteristics
Table 33-22. 32kHz internal ULP oscillator characteristics.
Symbol Parameter Condition Min. Typ. Max. Units
Frequency 32.768 kHz
Factory calibration accuracy T = 85C, V
CC
= 3.0V -0.5 0.5
%
User calibration accuracy -0.5 0.5
Symbol Parameter Condition Min. Typ. Max. Units
Frequency range
DFLL can tune to this frequency over
voltage and temperature
1.8 2.2
MHz
Factory calibrated frequency 2.0
Factory calibration accuracy T = 85C, V
CC
= 3.0V -1.5 1.5
%User calibration accuracy -0.2 0.2
DFLL calibration stepsize 0.18
Symbol Parameter Condition Min. Typ. Max. Units
Frequency range
DFLL can tune to this frequency over
voltage and temperature
30 32 55
MHz
Factory calibrated frequency 32
Factory calibration accuracy T = 85C, V
CC
= 3.0V -1.5 1.5
%User calibration accuracy -0.2 0.2
DFLL calibration step size 0.19
Symbol Parameter Condition Min. Typ. Max. Units
Factory calibrated frequency 32 kHz
Factory calibration accuracy T = 85C, V
CC
= 3.0V -12 12
%
Accuracy -30 30