Features

• High Performance, Low Power Atmel®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 16MHz
  • On-Chip 2-cycle Multiplier
• High Endurance Non-volatile Memory Segments
  • In-System Self-programmable Flash Program Memory
    • 32KBytes (ATmega329/ATmega3290)
    • 64KBytes (ATmega649/ATmega6490)
  • EEPROM
    • 1Kbytes (ATmega329/ATmega3290)
    • 2Kbytes (ATmega649/ATmega6490)
  • Internal SRAM
    • 2Kbytes (ATmega329/ATmega3290)
    • 4Kbytes (ATmega649/ATmega6490)
  • 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
• 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
  • 4 x 25 Segment LCD Driver (ATmega329/ATmega649)
  • 4 x 40 Segment LCD Driver (ATmega3290/ATmega6490)
  • 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
  • Four PWM Channels
  • 8-channel, 10-bit ADC
  • Programmable Serial USART
  • Master/Slave SPI Serial Interface
  • Universal Serial Interface with Start Condition Detector
  • 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
  • Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby
• I/O and Packages
  • 53/68 Programmable I/O Lines
  • 64-lead TQFP, 64-pad QFN/MLF, and 100-lead TQFP
• Speed Grade:
  • ATmega329V/ATmega3290V/ATmega649V/ATmega6490V:
  • 0 - 4MHz @ 1.8 - 5.5V, 0 - 8MHz @ 2.7 - 5.5V
  • ATmega329/3290/649/6490:
  • 0 - 8MHz @ 2.7 - 5.5V, 0 - 16MHz @ 4.5 - 5.5V
• Temperature range:
  • -40°C to 85°C Industrial
• Ultra-Low Power Consumption
  • Active Mode:
    • 1MHz, 1.8V: 350µA
    • 32kHz, 1.8V: 20µA (including Oscillator)
    • 32kHz, 1.8V: 40µA (including Oscillator and LCD)
  • Power-down Mode:
    • 100nA at 1.8V