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Overview

The ATmega329/3290/649/6490 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega329/3290/649/6490 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features

? High Performance, Low Power 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 16 MHz

– On-Chip 2-cycle Multiplier

? Non-volatile Program and Data Memories

– In-System Self-Programmable Flash, Endurance: 10,000 Write/Erase Cycles

32K bytes (ATmega329/ATmega3290)

64K bytes (ATmega649/ATmega6490)

– Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program

True Read-While-Write Operation

– EEPROM, Endurance: 100,000 Write/Erase Cycles

1K bytes (ATmega329/ATmega3290)

2K bytes (ATmega649/ATmega6490)

– Internal SRAM

2K bytes (ATmega329/ATmega3290)

4K bytes (ATmega649/ATmega6490)

– 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 - 4 MHz @ 1.8 - 5.5V, 0 - 8 MHz @ 2.7 - 5.5V

– ATmega329/3290/649/6490:

0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V

? Temperature range:

– -40°C to 85°C Industrial

? Ultra-Low Power Consumption

– Active Mode:

1 MHz, 1.8V: 350 μA

32 kHz, 1.8V: 20 μA (including Oscillator)

32 kHz, 1.8V: 40 μA (including Oscillator and LCD)

– Power-down Mode:

100 nA at 1.8V