ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 367

• Manufacturer Part Number: ATmega640
• Manufacturer: Atmel Corporation

Specifications of ATmega640

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 86
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 1
• Uart: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 16
• Input Capture Channels: 4
• Pwm Channels: 15
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

31. Electrical Characteristics
Absolute Maximum Ratings*
31.1
T
2549N–AVR–05/11
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 ................................................ 40.0mA
DC Current
Symbol
V
V
V
V
V
V
V
V
I
I
R
R
IL
IH
IL
IL1
IL2
IH
IH1
IH2
OL
OH
RST
PU
= -40°C to 85°C, V
DC Characteristics
Parameter
Input Low Voltage,Except
XTAL1 and Reset pin
Input Low Voltage,
XTAL1 pin
Input Low Voltage,
RESET pin
Input High Voltage,
Except XTAL1 and
RESET pins
Input High Voltage,
XTAL1 pin
Input High Voltage,
RESET pin
Output Low Voltage
Except RESET pin
Output High Voltage
Except RESET pin
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................................. 200.0mA
CC
= 1.8V to 5.5V (unless otherwise noted)
(3)
(4)
,
,
I
I
Condition
V
V
V
V
V
V
V
V
V
I
I
V
(absolute value)
V
(absolute value)
OL
OL
OH
OH
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 20mA, V
= 10mA, V
= -20mA, V
= -10mA, 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
+0.5V
CC
CC
= 5V
= 3V
= 5V
= 3V
ATmega640/1280/1281/2560/2561
*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.
0.7V
0.6V
0.8V
0.7V
0.9V
Min.
-0.5
-0.5
-0.5
-0.5
4.2
2.3
30
20
CC
CC
CC
CC
CC
(2)
(2)
(2)
(2)
(2)
Typ.
V
V
V
V
V
0.2V
0.3V
0.1V
0.1V
CC
CC
CC
CC
CC
Max.
0.9
0.6
60
50
1
1
+ 0.5
+ 0.5
+ 0.5
+ 0.5
+ 0.5
CC
CC
CC
CC
(1)
(1)
(1)
(1)
Units
kΩ
µA
V
367