Datasheet

471
8011Q–AVR–02/2013
ATmega164P/324P/644P
Figure 28-109.ATmega644P: BOD Threshold vs. Temperature (V
CC
= 1.8V)
28.3.8 Internal Oscillator Speed
Figure 28-110.ATmega644P: Watchdog Oscillator Frequency vs. Temperature
1.75
1.77
1.79
1.81
1.83
1.85
-60 -40 -20 0 20 40 60 80 100 120
Temperature (C)
Threshold (V)
Rising Vcc
Falling Vcc
5.5 V
4.0 V
3.3 V
2.7 V
2.1 V
110
115
120
125
-40 -20 0 20 40 60 80100120
Temperature
F
RC
(kHz)