Model:ATSAM4S2AB-MN BRAND:Microchip description:IC MCU 32BIT 128KB FLASH 48VQFN pack:tray SERIES:SAM4S status:in stock Core processor:ARM? Cortex?-M4 Core specifications:32-位 Speed:120MHz Peripherals:Undervoltage detection/reset,DMA,POR,PWM,WDT I/O number:34 Program storage capacity:128KB(128K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:64K x 8 Voltage - powered by:1.62V ~ 3.6V Data converter:A/D 8x12b Oscillator type:bosom Operating temperature:-40°C ~ 105°C(TA) Type of installation:Surface mount type Encapsulation/Shell:48-VFQFN Exposed pad Supplier device packaging:48-QFN(7x7)