ATmega8 Atmel Corporation, ATmega8 Datasheet - Page 64

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ATmega8

Manufacturer Part Number
ATmega8
Description
Manufacturer
Atmel Corporation
Datasheets

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

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64
ATmega8(L)
Table 29. Overriding Signals for Alternate Functions PD7..PD4
Table 30. Overriding Signals for Alternate Functions in PD3..PD0
Signal Name
PUOE
PUO
OOE
OO
PVOE
PVO
DIEOE
DIEO
DI
AIO
Signal Name
PUOE
PUO
OOE
OO
PVOE
PVO
DIEOE
DIEO
DI
AIO
PD7/AIN1
0
0
0
0
0
0
0
0
AIN1 INPUT
PD3/INT1
0
0
0
0
0
0
INT1 ENABLE
1
INT1 INPUT
PD6/AIN0
0
0
0
0
0
0
0
AIN0 INPUT
INT0 ENABLE
0
PD2/INT0
0
0
0
0
0
0
1
INT0 INPUT
PD5/T1
0
0
0
0
0
0
0
0
T1 INPUT
PD1/TXD
TXEN
0
TXEN
1
TXEN
TXD
0
0
PD4/XCK/T0
0
0
0
0
UMSEL
XCK OUTPUT
0
0
XCK INPUT / T0 INPUT
PD0/RXD
RXEN
PORTD0 • PUD
RXEN
0
0
0
0
0
RXD
2486Z–AVR–02/11

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