DC Characteristics

Table 1. DC Characteristics. T_A = -40°C to +85°C
Symbol	Parameter	Condition	Min.	Typ.	Max.	Units
V_IL	Input Low Voltage	V_CC = 1.8V - 2.4V  V_CC = 2.4V - 5.5V	-0.5		0.2V_CC 0.3V_CC	V
V_IH	Input High-voltage  Except RESET pin	V_CC = 1.8V - 2.4V  V_CC = 2.4V - 5.5V	0.7V_CC⁽¹⁾ 0.6V_CC⁽¹⁾		V_CC +0.5⁽²⁾	V
V_IH	Input High-voltage  RESET pin	V_CC = 1.8V to 5.5V	0.9V_CC⁽¹⁾		V_CC +0.5⁽²⁾	V
V_OL	Output Low Voltage⁽³⁾   Except RESET pin⁽⁵⁾	I_OL = 10 mA, V_CC = 5V  _IOL = 5 mA, V_CC = 3V			0.6 0.5	V
V_OH	Output High-voltage⁽⁴⁾  Except RESET pin⁽⁵⁾	I_OH = -10 mA, V_CC = 5 V _IOH = -5 mA, V_CC = 3V	4.3  2.5			V
I_LIL	Input Leakage Current I/O Pin	V_CC = 5.5V, pin low (absolute value)		<0.05	1	µA
I_LIH	Input Leakage Current I/O Pin	V_CC = 5.5V, pin high (absolute value)		<0.05	1	µA
R_RST	Reset Pull-up Resistor	V_CC = 5.5V, input low	30		60	kΩ
RPU	I/O Pin Pull-up Resistor	V_CC = 5.5V, input low	20		50	kΩ
I_ACLK	Analog Comparator Input Leakage Current	V_CC = 5V  V_in = V_CC/2	-50		50	nA
I_CC	Power Supply Current⁽⁶⁾	Active 1MHz, V_CC = 2V		0.2	0.5	mA
		Active 4MHz, V_CC = 3V		0.8	1.2	mA
		Active 8MHz, V_CC = 5V		2.7	4	mA
		Idle 1MHz, V_CC = 2V		0.02	0.2	mA
		Idle 4MHz, V_CC = 3V		0.13	0.5	mA
		Idle 8MHz, V_CC = 5V		0.6	1.5	mA
	Power-down mode⁽⁷⁾	WDT enabled, V_CC = 3V		4.5	10	µA
	Power-down mode⁽⁷⁾	WDT disabled, V_CC = 3V		0.15	2	µA

Note:

“Min” means the lowest value where the pin is guaranteed to be read as high.
“Max” means the highest value where the pin is guaranteed to be read as low.
Although each I/O port can sink more than the test conditions (10 mA at V_CC = 5V, 5 mA at V_CC = 3V) under steady state conditions (non-transient), the sum of all I_OL (for all ports) should not exceed 60 mA. If I_OL exceeds the test conditions, V_OL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
Although each I/O port can source more than the test conditions (10 mA at V_CC = 5V, 5 mA at V_CC = 3V) under steady state conditions (non-transient), the sum of all I_OH (for all ports) should not exceed 60 mA. If I_OH exceeds the test condition, V_OH may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence, has a weak drive strength as compared to regular I/O pins. See Figure 7, and Figure 8.
Values are with external clock using methods described in Minimizing Power Consumption. Power Reduction is enabled (PRR = 0xFF) and there is no I/O drive.
BOD Disabled.