Rainbow Electronics ATmega64C1 - Manual (Page 340)

340
7647A–AVR–02/08
ATmega32/64/M1/C1
Figure 26-37. Calibrated 8 MHz RC Oscillator Frequency vs. V
CC
Figure 26-38. Calibrated 8 MHz RC Oscillator Frequency vs. Osccal Value
CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. V
85 ˚C
25 ˚C
-40 ˚C
7.4
7.6
7.8
8
8.2
8.4
8.6
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(MHz)
CC
TE
MP
LA
TE
TO
B
E
CH
AR
AC
TE
RI
ZE
D
CALIBRATED 8.0 MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE
105 °C
85 °C
25 °C
-40 °C
0
2
4
6
8
10
12
14
16
-1 15 31 47 63 79 95 111 127 143 159 175 191 207 223 239 255
OSCCAL (X1)
F RC
(MH
z
)