Atmega8 Atmega8a-pu Dip28 Arduino Atmega Itytarg

The ATmega8A is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8A achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed.

Features 

High-performance, Low-power AVR® 8-bit Microcontroller 

Advanced RISC Architecture 

130 Powerful Instructions – Most Single-clock Cycle Execution 

32 x 8 General Purpose Working Registers 

Fully Static Operation 

Up to 16 MIPS Throughput at 16 MHz 

On-chip 2-cycle Multiplier 

High Endurance Non-volatile Memory segments 

8K Bytes of In-System Self-programmable Flash program memory

512 Bytes EEPROM 

1K Byte Internal SRAM 

Write/Erase Cycles: 10,000 Flash/100,000 EEPROM 

Data retention: 20 years at 85°C/100 years at 25°C 

Optional Boot Code Section with Independent Lock Bits 

In-System Programming by On-chip Boot Program 

True Read-While-Write Operation 

Programming Lock for Software Security 

Peripheral Features 

Two 8-bit Timer/Counters with Separate Prescaler, one Compare Mode 

One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode 

Real Time Counter with Separate Oscillator 

Three PWM Channels 

8-channel ADC in TQFP and QFN/MLF package 

Eight Channels 10-bit Accuracy 

6-channel ADC in PDIP package 

Six Channels 10-bit Accuracy 

Byte-oriented Two-wire Serial Interface 

Programmable Serial USART 

Master/Slave SPI Serial Interface 

Programmable Watchdog Timer with Separate On-chip Oscillator 

On-chip Analog Comparator 

Special Microcontroller Features

Power-on Reset and Programmable Brown-out Detection 

Internal Calibrated RC Oscillator 

External and Internal Interrupt Sources 

Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby 

I/O and Packages

23 Programmable I/O Lines

28-lead PDIP

Operating Voltages  2.7 – 5.5V

 Speed Grades 0 – 16 MHz

Power Consumption at 4 Mhz, 3V, 25°C Active: 3.6 mA

Idle Mode: 1.0 mA

Power-down Mode: 0.5 μA

Flash:8 KBytes 

EEPROM:    512 Bytes

SRAM:   1024 Bytes

Max I/O Pins:   23

Frequency Max:    16 MHz

VCC:  2.7-5.5

10-bit A/D Channels:    6

Analog Comparator:  Yes

16-bit Timers:1

8-bit Timer:    2

Brown Out Detector:Yes

Ext Interrupts:2

Hardware Multiplier:Yes

Interrupts:  18

ISP:   Yes

On Chip Oscillator:    Yes

PWM Channels:3

RTC:  Yes

Self Program Memory:   Yes

SPI:   1

TWI:  Yes

UART:    1

Watchdog:   Yes

Package:Lead Free PDIP 28