Model:ATXMEGA256A3B-AU BRAND:Microchip description:IC MCU 8/16BIT 256KB FLSH 64TQFP pack:tray SERIES:AVR? XMEGA? A3B status:Discontinued Core processor:AVR Core specifications:8/16-位 Speed:32MHz Peripherals:Undervoltage detection/reset,DMA,POR,PWM,WDT I/O number:49 Program storage capacity:256KB(128K x 16) Program memory type:Flash memory EEPROM capacity:4K x 8 RAM size:16K x 8 Voltage - powered by:1.6V ~ 3.6V Data converter:A/D 16x12b;D/A 2x12b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:64-TQFP Supplier device packaging:64-TQFP(14x14)