ATXMEGA256A3U-AU Part Information

Details for ATXMEGA256A3U-AU by Microchip Technology


Part Description

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, 4-channel DMA controller, 8-channel event system, and up to 32 MIPS throughput at 32MHz. The ATxmega A3 series features 64-pin packages. 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.

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Part Specifications

Family AVR ATxmega
Part Family AVR_ATxmega_A_USB
Part Prefix ATxmega
Architecture 8
Core 8-bit AVR
MaxSpeed (MHz) 32
CPU Type 8-bit AVR
Program Memory Type Flash
SelfWrite Yes
Program Memory Size (KB) 256
Program Memory Size (KWords) 256
Multiple Flash Panels True
Secure Bootloader (CodeGuard™ Security) None
RAM (KB) 16
Data EEPROM (bytes) 4096
Direct Memory Access (DMA) Channels 4
Temp. Range Min. -40
Temp. Range Max. 85
Operation Voltage Min.(V) 1.6
Operation Voltage Max.(V) 3.6
Max I/O Pins 50
Pin Count 64
Power On Reset (POR) Yes
Internal Oscillator Yes
Low Power Yes
Number of Comparators 4
ADC Channels 16
Diff ADC Inputs 64
Max ADC Sampling Rate (ksps) 2000
Max ADC Resolution (bits) 12
Max ADC Sample/Hold (S/H) 1
DAC outputs 2
Max DAC Resolution (bits) 12
Temp Sensor Yes
Standard UART 7
SPI™ 10
I2C 2
Hardware RTCC Yes
Watch Dog Timers (WDT) Yes
Timers 7
Stand alone PWM 22
Capture/Compare/PWM (CCP) 22
Standalone Output Compare/ Standard PWM 22
Input Capture 22
Max # PWM outputs (including complementary outputs) 22
Output Compare Channels 22
Number of USB Modules 1
USB Interface Device
Type of CAN module None
Ethernet None
Integrated Wireless Frequency None
Wireless Technology None
Quadrature Encoder Interface (QEI) 3
Crypto Engine Yes
JTAG Debug/Program/Boundary Scan
Debug Interface JTAG and PDI
Cloud Partners True
Temperature Range -40C to +85C

Alternative Part Descriptions

  • MCU 8-bit/16-bit XMEGA AVR RISC 256KB | RS Components
  • 64TQFP, IND TEMP, GREEN, 1.6-3.6V ROHS COMPLIANT: YES | Newark Electronics
  • MCU 8-bit/16-bit XMEGA AVR RISC 256KB Flash 1.8V/2.5V/3.3V 64-Pin TQFP | Avnet America
  • MCU 8-bit/16-bit XMEGA AVR RISC 256KB Flash 1.8V/2.5V/3.3V 64-Pin TQFP | Avnet Europe
  • MC 8/16bit 1,6V 264kB Flash 32MHz TQFP64 | Schukat Electronic

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