MCU 32BIT CORTEX-M4 40MHZ QFN-48; Product Range:EFR32 Mighty Gecko Wireless SOC; No. of Bits:32bit; CPU Speed:40MHz; Program Memory Size:256KB; RAM Memory Size:32KB; No. of Pins:48Pins; MCU Case Style:QFN; No. of I/O's:31I/O's; ;RoHS Compliant: Yes