Datasheet

468
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Figure 29-231.Atmel ATmega644A: Bandgap voltage vs. temperature.
29.5.11 Internal oscillator speed
Figure 29-232.Atmel ATmega644A: Watchdog oscillator frequency vs. temperature.
1.067
1.069
1.071
1.073
1.075
1.077
1.079
1.081
1.083
1.085
1.087
-40 -30 -20 -10 0 10 20 30405060708090
Temperature [°C]
Bandgap voltage [V]
5.5V
1.8V
3.6V
2.7V
4.5V
5.5V
4.0V
3.3V
2.7V
2.1V
108
109
110
111
112
113
114
115
116
117
118
119
-40 -30 -20 -10 0 10 20 304050607080
Temperature
[°C]
F
RC
[kHz]