Datasheet

29. Electrical Characteristics
29.1. Absolute Maximum Ratings
Table 29-1. Absolute Maximum Ratings
Operating Temperature -55°C to +125°C
Storage Temperature -65°C to +150°C
Voltage on any Pin except RESET
with respect to Ground
-0.5V to V
CC
+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 40.0mA
DC Current V
CC
and GND Pins 200.0mA
Note: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage
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.
29.2. DC Characteristics
Table 29-2. Common DC characteristics T
A
= -40°C to 85°C, V
CC
= 1.8V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
V
IL
Input Low Voltage, except XTAL1 and
RESET pin
V
CC
= 1.8V - 2.4V -0.5 0.2V
CC
(1)
V
V
CC
= 2.4V - 5.5V -0.5 0.3V
CC
(1)
V
IL1
Input Low Voltage,
XTAL1 pin
V
CC
= 1.8V - 5.5V -0.5 0.1V
CC
(1)
V
V
IL2
Input Low Voltage,
RESET pin
V
CC
= 1.8V - 5.5V -0.5 0.1V
CC
(1)
V
V
IH
Input High Voltage, except XTAL1
and RESET pins
V
CC
= 1.8V - 2.4V 0.7V
CC
(2)
V
CC
+ 0.5 V
V
CC
= 2.4V - 5.5V 0.6V
CC
(2)
V
CC
+ 0.5
V
IH1
Input High Voltage,
XTAL1 pin
V
CC
= 1.8V - 2.4V 0.8V
CC
(2)
V
CC
+ 0.5 V
V
CC
= 2.4V - 5.5V 0.7V
CC
(2)
V
CC
+ 0.5
V
IH2
Input High Voltage,
RESET pin
V
CC
= 1.8V - 5.5V 0.9V
CC
(2)
V
CC
+ 0.5 V
Atmel ATmega644A [DATASHEET]
Atmel-42716C-ATmega644A_Datasheet_Complete-10/2016
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