Model:AT32UC3A3256S-CTUR BRAND:Microchip description:IC MCU 32BIT 256KB FLSH 144FFBGA pack:tape(TR),Shear zone(CT),Digi-Reel? SERIES:AVR?32 UC3 A3 status:in stock Core processor:AVR Core specifications:32-位 Speed:66MHz Peripherals:Undervoltage detection/reset,DMA,POR,WDT I/O number:110 Program storage capacity:256KB(256K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:128K x 8 Voltage - powered by:1.75V ~ 3.6V Data converter:A/D 8x10b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:144-TFBGA Supplier device packaging:144-FFBGA(11x11)