Model:ATSAMG55J19B-AUT BRAND:Microchip description:IC MCU 32BIT 512KB FLASH 64LQFP pack:tape(TR),Shear zone(CT),Digi-Reel? 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-LQFP Supplier device packaging:64-LQFP(10x10)