Datasheet

473
8011Q–AVR–02/2013
ATmega164P/324P/644P
Figure 28-113.ATmega644P: Calibrated 8 MHz RC Oscillator vs. Temperature
Figure 28-114.ATmega644P: Calibrated 8 MHz RC Oscillator vs. OSCCAL Value
5.0 V
3.0 V
7.5
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
-40 -20 0 20 40 60 80 100 120
Temperature
F
RC
(MHz)
105 °C
85 °C
25 °C
-40 °C
0
4
8
12
16
0326496128 160 192 224 256
OSCCAL (X1)
F
RC
(MHz)