• 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(1)

• 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, 32-lead TQFP, and 32-pad QFN/MLF

• Operating Voltages

• 2.7 - 5.5V (ATmega8L)

• 4.5 - 5.5V (ATmega8)

• Speed Grades

• 0 - 8 MHz (ATmega8L)

• 0 - 16 MHz (ATmega8)

• Power Consumption at 4 Mhz, 3V, 25°C

• Active: 3.6 mA

• Idle Mode: 1.0 mA

• Power-down Mode: 0.5 μA