Datasheet

359
8011Q–AVR–02/2013
ATmega164P/324P/644P
27.1.11 Internal Oscillator Speed
Figure 27-34. Watchdog Oscillator Frequency vs. Temperature.
Figure 27-35. Watchdog Oscillator Frequency vs. V
CC
.
5.5V
4.0V
3.3V
2.7V
1.8V
116
118
120
122
124
126
128
-60 -40 -20 0 20 40 60 80 100
F
RC
(kHz)
Temperature (°C)
85°C
25°C
-40°C
115
117
119
121
123
125
127
129
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(kHz)