Datasheet

519
8272A–AVR–01/10
164A/164PA/324A/324PA/644A/644PA/1284/1284P
Figure 28-333.ATmega1284: Calibrated 8 MHz RC Oscillator vs. V
CC
Figure 28-334.ATmega1284: Calibrated 8 MHz RC Oscillator vs. Temperature
85 °C
25 °C
-40 °C
7.2
7.4
7.6
7.8
8
8.2
8.4
8.6
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(MHz)
3.3 V
2.7 V
1.8 V
7.5
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
-40 -30 -20 -10 0 10 20 30 40 50 60 70 8090
Temperature (°C)
F
RC
(MHz)
5.5 V