Atmega8-16AU AVR Microcontroller

The ATmega8 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed. 

Features

• 8K Bytes of In-System Self-Programmable Flash
• 512 Bytes EEPROM
• 1K Byte Internal SRAM
• 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
• 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
• 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
• 23 Programmable I/O Lines
• 32-lead TQFP
• Operating Voltages 4.5 - 5.5V
• Speed Grades 0 - 16 MHz

Documents: http://www.atmel.com/Images/Atmel-2486-8-bit-AVR-microcontroller-ATmega8_L_datasheet.pdf