Datasheet

Symbol Parameter Condition Min. Typ. Max. Units
I
IL
Input Leakage
Current I/O Pin
3 μA
I
IH
Input Leakage
Current I/O Pin
3 μA
R
RST
Reset Pull-up Resistor 30 80 kΩ
R
PU
I/O Pin Pull-up Resistor 20 50 kΩ
V
ACIO
Analog Comparator
Input Offset Voltage
V
CC
= 5V
Vin = V
CC
/2
20 mV
I
ACLK
Analog Comparator
Input Leakage Current
V
CC
= 5V
V
in
= V
CC
/2
-50 50 nA
Note:
1. “Max” means the highest value where the pin is guaranteed to be read as low
2. “Min” means the lowest value where the pin is guaranteed 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:
PDIP, TQFP, and QFN/MLF Package:
3.1. The sum of all IOL, for all ports, should not exceed 300mA.
3.2. The sum of all IOL, for ports C0 - C5 should not exceed 100mA.
3.3. The sum of all IOL, for ports B0 - B7, C6, D0 - D7 and XTAL2, should not exceed 200mA.
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:
PDIP, TQFP, and QFN/MLF Package:
4.1. The sum of all IOH, for all ports, should not exceed 300mA.
4.2. The sum of all IOH, for port C0 - C5, should not exceed 100mA
4.3. The sum of all IOH, for ports B0 - B7, C6, D0 - D7 and XTAL2, should not exceed 200mA.
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.
Table 31-2. ATmega8A DC Characteristics
T
A
= -40°C to 105°C, V
CC
= 1.8V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
I
CC
Power Supply Current Active 4MHz, V
CC
= 3V 6 mA
Active 8MHz, V
CC
= 5V 15 mA
Idle 4MHz, V
CC
= 3V 3 mA
Idle 8MHz, V
CC
= 5V 8 mA
AVR 8-Bit Microcontroller
Electrical Characteristics – TA = -40°C to 1...
© 2017 Microchip Technology Inc.
Datasheet Complete
40001974A-page 317