30-06-2012, 03:53 PM
AVR ATMEGA 8 MICRO-CONTROLLER
[attachment=26330]
INTRODUCTION
ATmega8 is a 8-bit microcontroller based on the AVR RISC architecture
By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughput approaching 1 MIPS per MHz.
Contd..
In order to maximize performance and parallelism, the AVR uses a Harvard architecture- which separates memories and buses for program and data
Instruction in program memory are executed with single level pipelining
This concept enables instructions to be executed in every clock cycle.
FEATURES
High-performance 8 bit Microcontroller
Up to 16 MIPS Throughput at 16 MHz
32 x 8 General Purpose Working Registers
Six ADC channels in PDIP package
Internal Calibrated Oscillator
MEMORY SEGMENTS
8K Bytes of Flash program memory
512 Bytes EEPROM (Electrically Erasable Programmable Read Only Memory)
1K Byte Internal RAM (Random Access Memory)
PIN DESCRIPTION
VCC Digital supply voltage
GND Ground
RESET A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running
AREF The analog reference pin for the A/D Converter
[attachment=26330]
INTRODUCTION
ATmega8 is a 8-bit microcontroller based on the AVR RISC architecture
By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughput approaching 1 MIPS per MHz.
Contd..
In order to maximize performance and parallelism, the AVR uses a Harvard architecture- which separates memories and buses for program and data
Instruction in program memory are executed with single level pipelining
This concept enables instructions to be executed in every clock cycle.
FEATURES
High-performance 8 bit Microcontroller
Up to 16 MIPS Throughput at 16 MHz
32 x 8 General Purpose Working Registers
Six ADC channels in PDIP package
Internal Calibrated Oscillator
MEMORY SEGMENTS
8K Bytes of Flash program memory
512 Bytes EEPROM (Electrically Erasable Programmable Read Only Memory)
1K Byte Internal RAM (Random Access Memory)
PIN DESCRIPTION
VCC Digital supply voltage
GND Ground
RESET A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running
AREF The analog reference pin for the A/D Converter