Datasheet

493
ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [DATASHEET]
8284E–AVR–02/2013
31.5.11 Internal oscillator speed
Figure 31-289.Atmel ATmega3290A: Watchdog Oscillator frequency vs. V
CC
.
Figure 31-290.ATmega3290A: Watchdog Oscillator frequency vs. temperature.
85°C
25°C
-40°C
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
[V]
F
RC
[kHz]
5.5V
5.0V
4.5V
4.0V
3.0V
2.7V
1.8V
1000
1050
1100
1150
1200
1250
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
Temperature [°C]
F
RC
[kHz]