Datasheet

ATmega48/88/168 Automotive [DATASHEET]
7530K–AVR–07/14
280
Figure 28-21. Calibrated 8MHz RC Oscillator Frequency versus V
CC
Figure 28-22. Calibrated 8MHz RC Oscillator Frequency versus OSCCAL Value (for ATmega48-15AZ and
ATmega168-15AZ)
2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
8
7.8
7.6
7.4
7.2
8.2
8.4
7
F
RC
(MHz)
125°C
85°C
25°C
-40°C
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
OSCCAL (X1)
12
10
8
6
4
14
16
2
F
RC
(MHz)
125°C
85°C
25°C
-40°C