Model:ATSAMG55J19A-MUT BRAND:Microchip description:IC MCU 32BIT 512KB FLASH 64QFN pack:tape(TR) SERIES:SAM G55 status:in stock Core processor:ARM? Cortex?-M4 Core specifications:32-位 Speed:120MHz Peripherals:DMA,I2S,POR,PWM,WDT I/O number:48 Program storage capacity:512KB(512K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:176K x 8 Voltage - powered by:1.62V ~ 3.6V Data converter:A/D 8x12b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:64-VFQFN Exposed pad Supplier device packaging:64-QFN(7.5x7.5)