Model:ATXMEGA32A4U-MHR BRAND:Microchip description:IC MCU 8/16BIT 32KB FLASH 44VQFN pack:tape(TR),Shear zone(CT),Digi-Reel? SERIES:AVR? XMEGA? A4U status:in stock Core processor:AVR Core specifications:8/16-位 Speed:32MHz Peripherals:Undervoltage detection/reset,DMA,POR,PWM,WDT I/O number:34 Program storage capacity:32KB(16K x 16) Program memory type:Flash memory EEPROM capacity:1K x 8 RAM size:4K x 8 Voltage - powered by:1.6V ~ 3.6V Data converter:A/D 12x12b; D/A 2x12b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:44-VFQFN Exposed pad Supplier device packaging:44-VQFN(7x7)