ATXMEGA256A3U Datasheet, PDF (97/116 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA A3U Microcontroller

XMEGA A3U
36.8.3
2MHz Internal Oscillator
Figure 36-31. 2MHz Internal Oscillator CALA Calibration Step Size
V_CC = 3V
0.32 %
0.29 %
0.26 %
0.23 %
0.20 %
0.17 %
-40°C
25°C
85°C
0.14 %
0
10 20 30 40 50 60 70 80 90 100 110 120 130
CALA
Figure 36-32. 2MHz Internal Oscillator Frequency vs. Temperature
2.18
2.16
2.14
2.12
2.1
2.08
2.06
2.04
2.02
2
1.98
-45 -35 -25 -15 -5
5 15 25 35 45 55 65 75
Temperature [°C]
3.3 V
3.0 V
2.7 V
2.2 V
1.8 V
97
8386A–AVR–07/11