Atmel AVR XMEGA Devices

The Atmel® AVR® XMEGA® family of microcontrollers (MCUs) gives you the largest range of fully compatible products where all have true low-power capabilities. Each device in the family was designed with Atmel picoPower® technology, which scales so that large MCUs have the same low-power characteristics as smaller MCUs.

Unique Low-Power Capabilities

Compared to other low-power MCU families, the AVR XMEGA device has a larger memory range, lower sleep current with real time counter (RTC) running and full SRAM retention for fast wake-up and reaction time. The figure below shows the maximum sleep current vs. memory size for different low-power MCU families.

AVR XMEGA Bar GraphMCUs in battery-powered applications typically spend more than 99% of their time in sleep mode, and require fast wake-up for optimal power efficiency and reaction time. With up to 50 times decrease in sleep current, the AVR XMEGA MCU enables optimal battery life time for applications needing a large memory size MCU to match those using a small memory size MCU.

With the AVR XMEGA device, you can avoid moving to more expensive multi-chip power management solutions as the memory requirements grow in applications where low sleep current is vital for the battery life. With more memory, you can support more functions and larger software stacks than in previous generations.



Typical Applications

  • Thermostats with display
  • Building and climate control
  • Utility meters with RF and ZigBee connectivity

The newest AVR XMEGA MCUs feature a Full-Speed USB device with operation from an internal oscillator, 300ksps 12-bit ADC, DMA controller and event system that offload data transfer and inter-peripheral signaling from the CPU.

AVR XMEGA Devices

Device Description Datasheet
ATXMEGA128A1 8/16-bit AVR XMEGA A1 Microcontroller, 128KB Flash, 100-pin
ATXMEGA128A3 8/16-bit AVR XMEGA A3 Microcontroller, 128KB Flash, 64-pin
ATXMEGA128A4  8/16-bit AVR XMEGA A4 Microcontroller, 128KB Flash, 44-pin
ATXMEGA16A4  8/16-bit AVR XMEGA A4 Microcontroller, 16KB Flash, 44-pin
ATXMEGA192A3  8/16-bit AVR XMEGA A3 Microcontroller, 192KB Flash, 64-pin
ATXMEGA256A3  8/16-bit AVR XMEGA A3 Microcontroller, 256KB Flash, 64-pin
ATXMEGA32A4  8/16-bit AVR XMEGA A4U Microcontroller, 32KB Flash, 44-pin
ATXMEGA64A1  8/16-bit AVR XMEGA A1 Microcontroller, 64KB Flash, 100-pin
ATXMEGA64A3  8/16-bit AVR XMEGA A3 Microcontroller, 64KB Flash, 64-pin
ATXMEGA64A4  8/16-bit AVR XMEGA A4 Microcontroller, 64KB Flash, 44-pin
*ATXMEGAA3BU-XPLD  Evaluation board for Atmel AVR XMEGA. It features an ATxmega256A3BU and additional components demonstrating the features of the device.
*ATAVRXPLAIN  MCU board for Atmel AVR XMEGA. It features an ATmega128A1 and additional components demonstrating the features of the device.
Device Description Datasheet
ATXMEGA128B1  8/16-bit AVR XMEGA B1 Microcontroller, 128KB Flash, 100-pin, USB Full-speed Device, 4x40 segment LCD controller
ATXMEGA128B3  8/16-bit AVR XMEGA B3 Microcontroller, 128KB Flash, 64-pin, USB Full-speed Device, 4x25 segment LCD controller
ATXMEGA64B1  8/16-bit AVR XMEGA B1 Microcontroller, 128KB Flash, 100-pin, USB Full-speed Device, 4x40 segment LCD controller
ATXMEGA64B3  8/16-bit AVR XMEGA B3 Microcontroller, 64KB Flash, 64-pin, USB Full-speed Device, 4x25 segment LCD controller
*ATXMEGAB1-XPLD  Evaluation board for Atmel AVR XMEGA with LCD. It features an ATxmega128B1 and additional components demonstrating the features of the device.
Device Description Datasheet
ATXMEGA384C3 
8/16-bit AVR XMEGA C3 Microcontroller, 384KB Flash, 64-pin, USB Full-speed Device
Device Description Datasheet
ATXMEGA128D3  8/16-bit AVR XMEGA D3 Microcontroller, 128KB Flash, 64-pin
ATXMEGA128D4  8/16-bit AVR XMEGA D4 Microcontroller, 128KB Flash, 44-pin
ATXMEGA16D4  8/16-bit AVR XMEGA D4 Microcontroller, 16KB Flash, 44-pin
ATXMEGA192D3  8/16-bit AVR XMEGA D3 Microcontroller, 192KB Flash, 64-pin
ATXMEGA256D3  8/16-bit AVR XMEGA D3 Microcontroller, 256KB Flash, 64-pin
ATXMEGA32D4  8/16-bit AVR XMEGA D4 Microcontroller, 32KB Flash, 44-pin
ATXMEGA384D3  8/16-bit AVR XMEGA D3 Microcontroller, 384KB Flash, 64-pin
ATXMEGA64D3  8/16-bit AVR XMEGA D3 Microcontroller, 64KB Flash, 64-pin

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