High-Performance AVR® 8-Bit Microcontroller Family:

• Advanced RISC Architecture with 131 Powerful Instructions
• Most Instructions Execute in a Single Clock Cycle
• 32 x 8 General Purpose Working Registers
• Fully Static Operation
• Up to 20 MIPS Throughput at 20MHz
• On-Chip 2-Cycle Multiplier

High-Endurance Non-Volatile Memory Segments:

• 4/8/16/32KBytes of In-System Self-Programmable Flash Program Memory
• 256/512/512/1KBytes EEPROM
• 512/1K/1K/2KBytes 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

QTouch® Library Support:

• Capacitive Touch Buttons, Sliders, and Wheels
• QTouch and QMatrix™ Acquisition
• Up to 64 Sense Channels

Peripheral Features:

• Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
• One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
• Real-Time Counter with Separate Oscillator
• Six PWM Channels
• 8-channel 10-bit ADC in TQFP and VQFN Package
• 6-channel 10-bit ADC in SPDIP Package
• Programmable Serial USART
• Master/Slave SPI Serial Interface
• Byte-Oriented 2-Wire Serial Interface (Philips I2C Compatible)
• Programmable Watchdog Timer with Separate On-Chip Oscillator
• On-Chip Analog Comparator
• Interrupt and Wake-Up on Pin Change

Special Microcontroller Features:

• Power-On Reset and Programmable Brown-Out Detection
• Internal Calibrated Oscillator
• External and Internal Interrupt Sources
• Six Sleep Modes: Idle, ADC Noise Reduction, Power-Save, Power-Down, Standby, and Extended Standby

I/O and Packages:

• 23 Programmable I/O Lines
• 28-pin SPDIP, 32-lead TQFP, 28-pad VQFN, and 32-pad VQFN
• Operating Voltage: 1.8 - 5.5V
• Temperature Range: -40°C to 85°C
• Speed Grade: 0 - 4MHz @ 1.8 - 5.5V, 0 - 10MHz @ 2.7 - 5.5V, 0 - 20MHz @ 4.5 - 5.5V
• Power Consumption at 1MHz, 1.8V, 25°C
  • Active Mode: 0.2mA
  • Power-Down Mode: 0.1µA
  • Power-Save Mode: 0.75µA (Including 32kHz RTC)