Feature

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 20MHz
    • On-Chip 2-cycle Multiplier
  • High Endurance Non-Volatile Memory Segments
    • 32KBytes of In-System Self-Programmable Flash Program Memory
    • 1KBytes EEPROM
    • 2KBytes Internal SRAM
    • Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
    • Data Retention: 20 Years at 85°C
    • 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
  • JTAG (IEEE std. 1149.1 Compliant) Interface
    • Boundary-Scan Capabilities According to the JTAG Standard
    • Extensive On-chip Debug Support
    • Programming of Flash, EEPROM, Fuses, and Lock Bits Through the JTAG Interface
  • Peripheral Features
    • Peripheral Touch Controller (PTC)
      • Capacitive Touch Buttons, Sliders and Wheels
      • 32 Self-Sap Channels and 256 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

      • Differential Mode with Selectable Gain at 1×, 10× or 200×

    • Three Programmable Serial USARTs
    • Two Master/Slave SPI Serial Interfaces
    • Two Byte-oriented 2-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
    • 39 Programmable I/O Lines
    • 44-Pin TQFP and 44-Pin QFN /MLF
  • Operating Voltage:
    • 1.8 - 5.5V
  • Temperature Range:
    • -40°C to 105°C
  • Speed Grade:
    • 0 - 4MHz @ 1.8 - 5.5V
    • 0 - 10MHz @ 2.7 - 5.5.V
    • 0 - 20MHz @ 4.5 - 5.5V
  • Power Consumption at 1MHz, 1.8V, 25°C
    • Active Mode: 0.24mA
    • Power-Down Mode: 0.2μA
    • Power-Save Mode: 1.3μA (Including 32kHz RTC)