Low power, high performance 8/16-bit AVR microcontroller featuring 256KB self-programming flash program memory, 8KB boot code section, 16KB SRAM, 4096-byte EEPROM, external bus interface, 4-channel DMA controller, 8-channel event system. It also includes dual 12-bit ADC, 2 12-bit DAC channels, 4 analog comparators, AES and DES crypto engines, 7 16-bit timer/counters, 6 USART, 2 SPI, and 2 TWIs, RTC battery backup system, 4-channel DMA controller, and 8-channel event system.

The device can be used in a wide range of applications, such as building, industrial, motor, board, and climate control; hand-held battery applications; factory automation; power tools; HVAC; networking, metering, large home appliances, and optical and medical devices. This ATxmega series features 64-pin packages.

Key Parameters

Parameter
Value

Flash (Kbytes):

256 Kbytes

Pin Count:

64

Max. Operating Frequency:

32 MHz

CPU:

8-bit AVR

# of Touch Channels:

16

Hardware QTouch Acquisition:

No

Max I/O Pins:

47

Ext Interrupts:

49

USB Transceiver:

1

Quadrature Decoder Channels:

0

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment
ATXMEGA256A3BU-AU TQFP 64A 64 32 1.6-3.6 Industrial (A) (-40°C to 85°C)
ATXMEGA256A3BU-MH MLF (VQFN) 64M1 64 32 1.6-3.6 Industrial (A) (-40°C to 85°C)