Datasheet
ATmega164A/PA/324A/PA/644A/PA/1284/P
2018 Microchip Technology Inc. Data Sheet Complete DS40002070A-page 342
Note: 1. “Max" means the highest value where the pin is ensured to be read as low
2. “Min" means the lowest value where the pin is ensured to be read as high
3. Although each I/O port can sink more than the test conditions (20mA at VCC = 5V, 10mA at VCC = 3V) under steady
state conditions (non-transient), the following must be observed:
1.)The sum of all IOL, for ports PB0-PB7, XTAL2, PD0-PD7 should not exceed 100 mA.
2.)The sum of all IOL, for ports PA0-PA3, PC0-PC7 should not exceed 100 mA.
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current
greater than the listed test condition.
4. Although each I/O port can source more than the test conditions (20mA at VCC = 5V, 10mA at VCC = 3V) under steady
state conditions (non-transient), the following must be observed:
1.)The sum of all IOH, for ports PB0-PB7, XTAL2, PD0-PD7 should not exceed 100 mA.
2.)The sum of all IOH, for ports PA0-PA3, PC0-PC7 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.
Notes: 1. All bits set in the ”PRR0 – Power Reduction Register 0” on page 56
2. The current consumption values include input leakage current.
Notes: 1. All bits set in the ”PRR0 – Power Reduction Register 0” on page 56
2. The current consumption values include input leakage current.
29.1.1 ATmega164PA DC Characteristics
Table 29-1. T
A
= -40C to 105C, V
CC
= 1.8V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
I
CC
Power Supply Current
(1)
Active 1 MHz, V
CC
= 2V 0.7 mA
Active 4 MHz, V
CC
= 3V 3 mA
Active 8 MHz, V
CC
= 5V 11 mA
Idle 1 MHz, V
CC
= 2V 0.17 mA
Idle 4 MHz, V
CC
= 3V 0.85 mA
Idle 8 MHz, V
CC
= 5V 6 mA
Power-down mode
(2)
WDT enabled, V
CC
= 3V 15 µA
WDT disabled, V
CC
= 3V 5 µA
29.1.2 ATmega324PA DC Characteristics
Table 29-2. T
A
= -40C to 105C, V
CC
= 1.8V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
I
CC
Power Supply Current
(1)
Active 1 MHz, V
CC
= 2V 0.7 mA
Active 4 MHz, V
CC
= 3V 3 mA
Active 8 MHz, V
CC
= 5V 11 mA
Idle 1 MHz, V
CC
= 2V 0.17 mA
Idle 4 MHz, V
CC
= 3V 0.85 mA
Idle 8 MHz, V
CC
= 5V 6 mA
Power-down mode
(2)
WDT enabled, V
CC
= 3V 15 µA
WDT disabled, V
CC
= 3V 5 µA