The STM32G473 Qx from STMicroelectronics is a Space Qualified Microcontroller with Clock Rate 32 kHz to 48 MHz, Operating Frequency 170 MHz, Internal RAM Memory SRAM : 128 kB, Flash Memory 128 to 512 kB, Supply Voltage 1.7 to 3.6 V. Tags: Surface Mount. More details for STM32G473 Qx can be seen below.