Datasheet

467
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Figure 29-229.Atmel ATmega644A: BOD threshold vs. temperature (V
BOT
= 1.8V).
Figure 29-230.Atmel ATmega644A: Calibrated bandgap voltage vs. V
CC
.
Rising Vcc
Falling Vcc
1.76
1.77
1.78
1.79
1.80
1.81
1.82
1.83
1.84
-50 -40 -30 -20 -10 0 10 20 30405060708090100
Temperature
[°C]
Threshold [V]
85°C
25°C
-40°C
1.066
1.068
1.070
1.072
1.074
1.076
1.078
1.080
1.082
1.084
1.086
V
CC
[V]
Bandgap voltage [V]
1.5 4.03.53.02.52.0 5.55.04.5