378
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
16 MHz Figure 158. Maximum Frequency vs. V
CC
, ATmega640/ATmega1280/ATmega1281
Figure 159. Maximum Frequency vs. V
CC
, ATmega2560/ATmega2561
16 MHz
8 MHz
2.7V 4.5V 5.5V
Safe Operating Area
16 MHz
4.5V 5.5V
Safe Operating Area
