Microchip ATXMEGA256A3BU-MH 8位MCU，AVR ATxmega系列 ATXmega A系列微控制器，AVR，32 MHz，256 KB，64引脚

Interfaces: I2C/SPI/USART/USB

MCU Family: AVR ATxmega

MCU Series: ATxmega A

Device Core: AVR

IC Mounting: Surface Mount

No. of I/Os: 47

No. of Pins: 64

ADC Channels: 16

Product Range: AVR ATxmega Family ATxmega A Series Microcontrollers

ADC Resolution: 12-bit

IC Case / Package: QFN EP

Operating Frequency Max: 32

Operating Temperature Max: 85 °C

Operating Temperature Min: -40 °C

Datasheet