ATMEGA325-16AJ ATMEL [ATMEL Corporation], ATMEGA325-16AJ Datasheet - Page 318

• Manufacturer Part Number: ATMEGA325-16AJ
• Description: 8-bit Microcontroller with In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Internal Oscillator Speed
318
ATmega325/3250/645/6450
Figure 183. Watchdog Oscillator Frequency vs. V
Figure 184. Calibrated 8 MHz RC Oscillator Frequency vs. Temperature
1200
1150
1100
1050
1000
950
900
850
800
8.8
8.6
8.4
8.2
7.8
7.6
7.4
7.2
8
-60
1.5
1.8V
2.7V
4.0V
5.5V
CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. TEMPERATURE
-40
2
WATCHDOG OSCILLATOR FREQUENCY vs. V
-20
2.5
0
3
T
a
V
20
(˚C)
CC
3.5
(V)
CC
40
4
60
4.5
CC
80
5
2570A–AVR–09/04
100
5.5
-40 °C
25 °C
85 °C