megaAVR Microcontrollers

The next step in capacity and performance from Atmel

Image of Atmel's megaAVR MicrocontrollersAtmel’s megaAVR is suitable for applications requiring large amounts of code and offers substantial program and data memories with performance up to 20 MIPS. Innovative picoPower technology minimizes power consumption. All megaAVRs offer self-programmability for fast, secure, cost-effective in-circuit upgrades. Engineers can even upgrade the flash while running an application.

Based on industry-leading, proven technology, the megaAVR family offers Atmel's widest selection of devices in terms of memories, pin counts, and peripherals. Atmel offers products ranging from general-purpose devices to models with specialized peripherals like USB, or LCD controllers, or CAN, LIN, and power stage controllers. It is easy to find the perfect fit for a project in the megaAVR product family.


Broad Family

  • megaAVR offers Atmel's widest selection of devices in terms of memories, pin counts, and peripherals, enabling reuse of code and knowledge across projects.
picoPower Technology
  • Selected megaAVR features ultra low power consumption and individually selectable low-power sleep modes that make it ideal for battery-powered applications

High integration

  • The megaAVR features on-chip flash, SRAM, internal EEPROM, SPI, TWI, and USART, USB, CAN, and LIN, watchdog timer, a choice of internal or external precision oscillator, and general purpose I/O pins, simplifying design and reducing bill-of-materials.

Analog functions

  • Advanced analog capabilities, such as ADC, DAC, built-in temperature sensor and internal voltage reference, brown out detector, a fast analog comparator, and a programmable analog gain amplifier. The high level of integration allows for designs with fewer external analog components.

Rapid development

  • megaAVR microcontrollers speed development with powerful in-system programming and on-chip debug. In addition, in-system programming simplifies production line programming and field upgrades.

megaAVR Microcontrollers

ImageManufacturer Part NumberDescriptionAvailable Quantity
ATMEGA168A-AU datasheet linkIC MCU 8BIT 16KB FLASH 32TQFPATMEGA168A-AUIC MCU 8BIT 16KB FLASH 32TQFP2948 - Immediate
ATMEGA168A-AU product page link
ATMEGA644P-20AU datasheet linkIC MCU 8BIT 64KB FLASH 44TQFPATMEGA644P-20AUIC MCU 8BIT 64KB FLASH 44TQFP268 - Immediate
ATMEGA644P-20AU product page link
ATMEGA1281-16AU datasheet linkIC MCU 8BIT 128KB FLASH 64TQFPATMEGA1281-16AUIC MCU 8BIT 128KB FLASH 64TQFP1413 - Immediate
ATMEGA1281-16AU product page link
ATMEGA88PA-PU product page link
ATMEGA164P-20AU datasheet linkIC MCU 8BIT 16KB FLASH 44TQFPATMEGA164P-20AUIC MCU 8BIT 16KB FLASH 44TQFP11361 - Immediate
ATMEGA164P-20AU product page link
ATMEGA325A-AU datasheet linkIC MCU 8BIT 32KB FLASH 64TQFPATMEGA325A-AUIC MCU 8BIT 32KB FLASH 64TQFP1890 - Immediate
ATMEGA325A-AU product page link
ATMEGA128-16ANR datasheet linkIC MCU 8BIT 128KB FLASH 64TQFPATMEGA128-16ANRIC MCU 8BIT 128KB FLASH 64TQFP219 - Immediate
ATMEGA128-16ANR product page link
ATMEGA328P-AU datasheet linkIC MCU 8BIT 32KB FLASH 32TQFPATMEGA328P-AUIC MCU 8BIT 32KB FLASH 32TQFP0ATMEGA328P-AU product page link
ATMEGA168P-20MUR datasheet linkIC MCU 8BIT 16KB FLASH 32VQFNATMEGA168P-20MURIC MCU 8BIT 16KB FLASH 32VQFN0ATMEGA168P-20MUR product page link
ATMEGA48-15MZ datasheet linkIC MCU 8BIT 4KB FLASH 32QFNATMEGA48-15MZIC MCU 8BIT 4KB FLASH 32QFN0ATMEGA48-15MZ product page link
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Published: 2012-06-29