Model:ATSAM3S1AA-MU BRAND:Microchip description:IC MCU 32BIT 64KB FLASH 48QFN pack:tray SERIES:SAM3S status:Discontinued Core processor:ARM? Cortex?-M3 Core specifications:32-位 Speed:64MHz Peripherals:Undervoltage detection/reset,DMA,I2S,POR,PWM,WDT I/O number:34 Program storage capacity:64KB(64K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:16K x 8 Voltage - powered by:1.62V ~ 3.6V Data converter:A/D 8x10/12b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:48-VFQFN Exposed pad Supplier device packaging:48-QFN(7x7)