STM8L152x6/8 8-Bit Ultralow Power MCU STMicroelectronics STM8L152x6/8 8-Bit Ultralow Power MCU features an enhanced STM8 CPU core for increased processing power of up to 16MIPS at 16MHz. The STM8L152x6/8 maintains the advantages of a CISC architecture with improved code density. The board has 24-bit linear addressing space and an optimized architecture for low-power operations. The family includes an integrated debug module with a hardware interface (SWIM). This module allows non-intrusive in-application debugging and ultrafast flash programming.