31. Electrical Characteristics
Absolute Maximum Ratings*
Operating Temperature.................................. -55°C to +125°C
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Storage Temperature..................................... -65°C to +150°C
Voltage on any Pin except RESET
with respect to Ground ................................-0.5V to VCC+0.5V
Voltage on RESET with respect to Ground......-0.5V to +13.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current VCC and GND Pins................................ 200.0 mA
31.1 DC Characteristics
TA = -40°C to 85°C, VCC = 1.8V to 5.5V (unless otherwise noted)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
(1)
(1)
Input Low Voltage,Except
XTAL1 and Reset pin
VCC = 1.8V - 2.4V
VCC = 2.4V - 5.5V
-0.5
-0.5
0.2VCC
0.3VCC
VIL
V
Input Low Voltage,
XTAL1 pin
(1)
(1)
VIL1
VIL2
VCC = 1.8V - 5.5V
VCC = 1.8V - 5.5V
-0.5
-0.5
0.1VCC
0.1VCC
V
V
Input Low Voltage,
RESET pin
Input High Voltage,
Except XTAL1 and
RESET pins
(2)
(2)
VCC = 1.8V - 2.4V
VCC = 2.4V - 5.5V
0.7VCC
0.6VCC
VCC + 0.5
VCC + 0.5
VIH
V
(2)
(2)
Input High Voltage,
XTAL1 pin
VCC = 1.8V - 2.4V
VCC = 2.4V - 5.5V
0.8VCC
0.7VCC
VCC + 0.5
VCC + 0.5
VIH1
VIH2
VOL
V
V
V
Input High Voltage,
RESET pin
(2)
VCC = 1.8V - 5.5V
0.9VCC
VCC + 0.5
Output Low Voltage(3),
Except RESET pin
IOL = 20 mA, VCC = 5V
IOL = 10 mA, VCC = 3V
0.9
0.6
Output High Voltage(4),
Except RESET pin
IOH = -20 mA, VCC = 5V
IOH = -10 mA, VCC = 3V
4.2
2.3
VOH
V
Input Leakage
Current I/O Pin
VCC = 5.5V, pin low
(absolute value)
IIL
1
1
µA
µA
Input Leakage
Current I/O Pin
VCC = 5.5V, pin high
(absolute value)
IIH
RRST
RPU
Reset Pull-up Resistor
I/O Pin Pull-up Resistor
30
20
60
50
kΩ
kΩ
370
ATmega640/1280/1281/2560/2561
2549L–AVR–08/07
ATMEL [ ATMEL ]
