ATmega8 Atmel Corporation, ATmega8 Datasheet - Page 297
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ATmega8
Manufacturer Part Number
ATmega8
Description
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
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Table of Contents
2486Z–AVR–02/11
Features 1
Pin Configurations 2
Overview 3
Resources 7
Data Retention 7
About Code Examples 8
Atmel AVR CPU Core 9
AVR ATmega8 Memories 17
System Clock and Clock Options 25
Power Management and Sleep Modes 33
Block Diagram 3
Disclaimer 4
Pin Descriptions 5
Introduction 9
Architectural Overview 9
Arithmetic Logic Unit – ALU 11
Status Register 11
General Purpose Register File 12
Stack Pointer 13
Instruction Execution Timing 13
Reset and Interrupt Handling 14
In-System Reprogrammable Flash Program Memory 17
SRAM Data Memory 18
Data Memory Access Times 19
EEPROM Data Memory 19
I/O Memory 24
Clock Systems and their Distribution 25
Clock Sources 26
Crystal Oscillator 27
Low-frequency Crystal Oscillator 28
External RC Oscillator 28
Calibrated Internal RC Oscillator 30
External Clock 32
Timer/Counter Oscillator 32
Idle Mode 34
ATmega8(L)
i