ATmega8 Atmel Corporation, ATmega8 Datasheet - Page 235

• Manufacturer Part Number: ATmega8
• Manufacturer: Atmel Corporation

Specifications of ATmega8

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 2
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 1
• Pwm Channels: 3
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Electrical Characteristics
Note:
Absolute Maximum Ratings*
DC Characteristics
T
2486Z–AVR–02/11
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
V
V
I
I
R
IL
IH
IL
IH
IL1
IH1
IL2
IH2
IL3
IH3
OL
OH
RST
= -40°C to +85°C, V
Typical values contained in this datasheet are based on simulations and characterization of other AVR microcontrollers manu-
factured on the same process technology. Min and Max values will be available after the device is characterized.
V
CC
Parameter
Input Low Voltage except
XTAL1 and RESET pins
Input High Voltage except
XTAL1 and RESET pins
Input Low Voltage
XTAL1 pin
Input High Voltage
XTAL 1 pin
Input Low Voltage
RESET pin
Input High Voltage
RESET pin
Input Low Voltage
RESET pin as I/O
Input High Voltage
RESET pin as I/O
Output Low Voltage
(Ports B,C,D)
Output High Voltage
(Ports B,C,D)
Input Leakage
Current I/O Pin
Input Leakage
Current I/O Pin
Reset Pull-up Resistor
and GND Pins................................. 300.0mA
CC
= 2.7V to 5.5V (unless otherwise noted)
(3)
(4)
V
V
V
V
V
V
V
V
I
I
I
I
Vcc =
(absolute value)
Vcc =
(absolute value)
Condition
OL
OL
OH
OH
CC
CC
CC
CC
CC
CC
CC
CC
= 20mA, V
= 10mA, V
= -20mA, V
= -10mA, V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
5.5
5.5
CC
V, pin low
V, pin high
+0.5V
CC
CC
CC
CC
= 5V
= 3V
= 5V
= 3V
*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.
Min
-0.5
0.6V
-0.5
0.8V
-0.5
0.9V
-0.5
0.6V
0.7V
4.2
2.2
30
CC
CC
CC
CC
CC
(2)
(2)
(2)
(2)
(2)
Typ
ATmega8(L)
Max
0.2 V
V
0.1V
V
V
V
0.9
0.6
1
1
80
0.2 V
CC
CC
CC
0.2V
CC
+ 0.5
+ 0.5
+ 0.5
+ 0.5
CC
CC
CC
CC
(1)
(1)
Units
V
µA
kΩ
235