370
8025I–AVR–02/09
ATmega48P/88P/168P/328P
Figure 27-79. BOD Thresholds vs. Temperature (BODLEVEL is 4.3 V).
27.2.11
Internal Oscilllator Speed
Figure 27-80. Watchdog Oscillator Frequency vs. Temperature.
BOD THRESHOLDS
v
s. TEMPERATURE
BODLE
V
EL IS 4.3
V
Rising
V
cc
Falling
V
cc
4
4.05
4.1
4.15
4.2
4.25
4.3
4.35
4.4
4.45
4.5
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
8
0
90
100
Temperat
u
re (C)
Threshold (
V
)
5.5
V
4.0
V
3.3
V
2.7
V
W
ATCHDOG OSCILLATOR FREQUE
N
CY
v
s. TEMPERATURE
92
94
96
9
8
100
102
104
106
10
8
110
112
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
8
0
90
Temperat
u
re
F
RC
(kHz)