ATXMEGA128A4_09 Datasheet, PDF (87/104 Pages) ATMEL Corporation – 8/16-bit XMEGA A4 Microcontroller

XMEGA A4
35.10 Internal Oscillator Speed
35.10.1 Internal 32.768 kHz Oscillator
Figure 35-37. Internal 32.768 kHz Oscillator Calibration Step Size
T = -40 to 85°C, V_CC = 3V.
0.80 %
0.65 %
0.50 %
0.35 %
0.20 %
0.05 %
0
35.10.2 Internal 2 MHz Oscillator
32
64
96
128
160
192
224
256
RC32KCAL[7..0]
Figure 35-38. Internal 2 MHz Oscillator CALA Calibration Step Size
T = -40 to 85°C, V_CC = 3V.
0.50 %
0.40 %
0.30 %
0.20 %
0.10 %
0.00 %
-0.10 %
-0.20 %
-0.30 %
0
16
32
48
64
80
96
112
128
DFLLRC2MCALA
87
8069L–AVR–11/09