Datasheet

330
7674F–AVR–09/09
ATmega164P/324P/644P
4)The sum of all IOH, for ports F0-F7 should not exceed 100 mA.
If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current
greater than the listed test condition.
5. Values indicated represent typical data from design simulation.
Notes: 1. All bits set in the “PRR – Power Reduction Register” on page 47.
26.2 Speed Grades
Maximum frequency is depending on V
CC.
as shown in Figure 26-1.
Figure 26-1. Maximum Frequency vs. V
CC
, ATmega164P/324P/644P
26.1.1 ATmega644P DC Characteristics
Table 26-1. T
A
= -40°C to 125° C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
I
CC
Power Supply Current
(1)
Active 4 MHz, V
CC
= 3V 2.7 4.0 mA
Active 8 MHz, V
CC
= 5V 9.5 12 mA
Idle 4 MHz, V
CC
= 3V 0.7 1.2 mA
Idle 8 MHz, V
CC
= 5V) 3.0 4.0 mA
Power-down mode
WDT enabled, V
CC
= 3V 10 60 µA
WDT enabled, V
CC
= 5V 15 95 µA
WDT disabled, V
CC
= 3V 7 54 µA
WDT disabled, V
CC
= 5V 10 85 µA
16 MHz
8 MHz
2.7V
4.5V
5.5V
Safe Operating Area