Features

• High Performance, Low Power AVR® 8-Bit Microcontroller

• Advanced RISC Architecture

• 123 Powerful Instructions – Most Single Clock Cycle Execution
• 32 x 8 General Purpose Working Registers
• Fully Static Operation

• High Endurance Non-volatile Memory Segments

• 4K/8K Bytes of In-System Self-Programmable Flash Program Memory
• 64/64 Bytes EEPROM
• 256/512 Bytes Internal SRAM
• Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
• Data Retention: 20 years at 85°C / 100 years at 25°C
• Programming Lock for Software Security

Peripheral Features

• One 8-bit Timer/Counter with Separate Prescaler and Compare Mode
• One 16-bit Timer/Counter with Prescaler, and Compare and Capture Modes
• 6- or 8-channel 10-bit ADC
• Master/Slave SPI Serial Interface
• Byte-oriented 2-wire Serial Interface (Philips I2 C Compatible)
• Programmable Watchdog Timer with Separate On-Chip Oscillator
• On-Chip Analog Comparator
• Interrupt and Wake-up on Pin Change

 Special Microcontroller Features

• debugWIRE On-Chip Debug System
• In-System Programmable via SPI Port
• Power-On Reset and Programmable Brown-Out Detection
• Internal Calibrated Oscillator
• External and Internal Interrupt Sources
• Three Sleep Modes: Idle, ADC Noise Reduction and Power-Down
• On-Chip Temperature Sensor

• I/O and Packages

– 24 Programmable I/O Lines:

• 28-pin PDIP
• 28-pad QFN

– 28 Programmable I/O Lines:

• 32-lead TQFP
• 32-pad QFN
• 32-ball UFBGA

• Operating Voltage:

• 1.8 – 5.5V

• Temperature Range: -40°C to +85°C

• Speed Grade:

• 0 – 4 MHz @ 1.8 – 5.5V
• 0 – 8 MHz @ 2.7 – 5.5V
• 0 – 12 MHz @ 4.5 – 5.5V

• Low Power Consumption

• Active Mode: 1 MHz, 1.8V: 240 µA
• Power-Down Mode: 0.1 µA at 1.8V