The STM32WB50CG from STMicroelectronics is a Space Qualified Microcontroller with Clock Rate 32 kHz to 32 MHz, Operating Frequency 64 MHz, Internal RAM Memory SRAM : 64 to 128 kB, Flash Memory 1 MB, Supply Voltage 2 to 3.6 V. Tags: Surface Mount. More details for STM32WB50CG can be seen below.