ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 317

• Manufacturer Part Number: ATMEGA645A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645A-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27. Electrical Characteristics
27.1
27.2
T
8285B–AVR–03/11
A
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
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
Symbol
V
V
V
V
V
V
V
V
V
V
I
I
R
R
IL
IH
IL
IL1
IL2
IH
IH1
IH2
OL
OL1
OH
OH1
RST
PU
= -40°C to 85°C, V
Absolute Maximum Ratings*
DC Characteristics
Parameter
Input Low Voltage except
XTAL1 and RESET pins
Input Low Voltage
XTAL1 pins
Input Low Voltage,
RESET pins
Input High Voltage except
XTAL1 and RESET pins
Input High Voltage,
XTAL1 pin
Input High Voltage,
RESET pins
Output Low Voltage
Port A, C, D, E, F, G
Output Low Voltage
Port B
Output High Voltage
Port A, C, D, E, F, G
Output High Voltage
Port B
Input Leakage
Current I/O Pin
Input Leakage
Current I/O Pin
Reset Pull-up Resistor
I/O Pin Pull-up Resistor
V
CC
and GND Pins................................ 200.0 mA
CC
= 1.8V to 5.5V (unless otherwise noted)
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
(3)
(3)
(4)
(4)
,
,
,
,
V
V
I
I
Condition
V
V
V
V
V
V
V
I
I
I
I
I
I
V
(absolute value)
V
(absolute value)
OL
OL
OL
OL
OH
OH
OH
OH
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 10 mA, V
= 5 mA, V
= 20 mA, V
= 10 mA, V
= -10 mA, V
= -5 mA, V
= -20 mA, V
= -10 mA, V
= 1.8V - 2.4V
= 2.4V - 5.5V
= 1.8V - 5.5V
= 1.8V - 5.5V
= 1.8V - 2.4V
= 2.4V - 5.5V
= 1.8V - 2.4V
= 2.4V - 5.5V
= 1.8V - 5.5V
= 5.5V, pin low
= 5.5V, pin high
CC
CC
CC
CC
CC
CC
+0.5V
CC
CC
CC
= 3V
= 3V
= 5V
= 5V
= 3V
= 5V
= 5V
= 3V
*NOTICE:
0.85V
0.7V
0.6V
0.8V
0.7V
Min.
-0.5
-0.5
-0.5
-0.5
4.2
2.3
4.2
2.3
20
20
CC
CC
CC
CC
CC
(2)
(2)
(2)
(2)
(2)
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.
Typ.
V
V
V
V
V
0.2V
0.3V
0.1V
0.1V
CC
CC
CC
CC
CC
Max.
100
100
0.9
0.6
0.7
0.5
1
1
+ 0.5
+ 0.5
+ 0.5
+ 0.5
+ 0.5
CC
CC
CC
CC
(1)
(1)
(1)
(1)
Units
kΩ
kΩ
µA
µA
V
V
V
V
V
V
V
V
V
V
317