305
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
28.2
DC Characteristics.
Notes:
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 (20 mA at VCC = 5V, 10 mA at VCC = 3V) under steady state
conditions (non-transient), the following must be observed:
ATmega328P:
1] The sum of all IOL, for ports C0 - C5, should not exceed 100 mA.
2] The sum of all IOL, for ports B0 - B5, D5 - D7, XTAL1, XTAL2 should not exceed 100 mA.
3] The sum of all I
OL, for ports D0 - D4, 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 (20 mA at V
CC = 5V, 10 mA at VCC = 3V) under steady state
conditions (non-transient), the following must be observed:
ATmega328P:
1] The sum of all I
OH, for ports C0 - C5, D0- D4, should not exceed 150 mA.
2] The sum of all IOH, for ports B0 - B5, D5 - D7, XTAL1, XTAL2 should not exceed 150 mA.
If II
OH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current
greater than the listed test condition.
T
A = -40°C to 125°C, VCC = 2.7V to 5.5V (unless otherwise noted)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
VIL
Input Low Voltage, except
XTAL1 and RESET pin
V
CC = 2.7V - 5.5V
-0.5
0.3V
V
VIH
Input High Voltage, except
XTAL1 and RESET pins
V
CC = 2.7V - 5.5V
0.6V
CC
V
CC + 0.5
V
VIL1
Input Low Voltage,
XTAL1 pin
VCC = 2.7V - 5.5V
-0.5
V
VIH1
Input High Voltage,
XTAL1 pin
V
CC = 2.7V - 5.5V
0.7V
CC
V
CC + 0.5
V
VIL2
Input Low Voltage,
RESET pin
V
CC = 2.7V - 5.5V
-0.5
0.1V
V
VIH2
Input High Voltage,
RESET pin
VCC = 2.7V - 5.5V
0.9VCC
VCC + 0.5
V
VOL
IOL = 20 mA, VCC = 5V
IOL = 5 mA, VCC = 3V
0.8
0.5
V
VOH
IOH = -20 mA, VCC = 5V
IOH = -10 mA, VCC = 3V
4.1
2.3
V
IIL
Input Leakage
Current I/O Pin
V
CC = 5.5V, pin low
(absolute value)
1A
IIH
Input Leakage
Current I/O Pin
VCC = 5.5V, pin high
(absolute value)
1A
RRST
Reset Pull-up Resistor
30
60
k
Ω
RPU
I/O Pin Pull-up Resistor
20
50
k
Ω
VACIO
Analog Comparator
Input Offset Voltage
0.4V<Vin <Vcc-0.5
(absolute value)
10
40
mV
IACLK
Analog Comparator
Input Leakage Current
VCC = 5V
Vin = VCC/2
-50
50
nA