The STM32L151VD-X STM32L152VD-X from STMicroelectronics is a Space Qualified Microcontroller with Clock Rate 32 kHz to 24 MHz, Operating Frequency 32 MHz, Internal RAM Memory 80 kB, Flash Memory 384 KB, Internal ROM Memory 16 kB. Tags: Surface Mount. More details for STM32L151VD-X STM32L152VD-X can be seen below.