Features

High Performance, Low-Power AVR® 8-bit Microcontroller Family

• Advanced RISC Architecture
  • 131 Powerful Instructions
  • Most Single Clock Cycle Execution
  • 32 x 8 General Purpose Working Registers
  • Fully Static Operation
  • Up to 20 MIPS Throughput at 20 MHz
  • On-Chip 2-Cycle Multiplier
• High Endurance Nonvolatile Memory Segments
  • 32 KB of In-System Self-Programmable Flash program memory
  • 1 KB EEPROM
  • 2 KB Internal SRAM
  • Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
  • 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
  • Peripheral Touch Controller (PTC)
    • Capacitive Touch Buttons, Sliders, and Wheels
    • 24 Self-Cap Channels and 144 Mutual Cap Channels
  • Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
  • Three 16-bit Timer/Counters with Separate Prescaler, Compare Mode, and Capture Mode
  • Real-Time Counter with Separate Oscillator
  • Ten PWM Channels
  • 8-channel 10-bit ADC
  • Two Programmable Serial USARTs
  • Two Master/Slave SPI Serial Interfaces
  • Two Byte-Oriented Two-Wire Serial Interfaces (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 8 MHz Calibrated Oscillator
  • External and Internal Interrupt Sources
  • Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
  • Clock Failure Detection Mechanism and Switch to Internal 8 MHz RC Oscillator in case of Failure
  • Individual Serial Number to Represent a Unique ID
• I/O and Packages
  • 27 Programmable I/O Lines
  • 32-pin TQFP and 32-pin QFN /MLF
• Operating Voltage:
  • 1.8 - 5.5V
• Temperature Range:
  • -40°C to 105°C
• Speed Grade:
  • 0 - 4 MHz @ 1.8 - 5.5V
  • 0 - 10 MHz @ 2.7 - 5.5V
  • 0 - 20 MHz @ 4.5 - 5.5V
• Power Consumption at 1 MHz, 1.8V, 25°C
  • Active Mode: 0.24 mA
  • Power-Down Mode: 0.2 μA
  • Power-Save Mode: 1.3 μA (Including 32 kHz RTC)