STM32L47xxx, STM32L48xxx, STM32L49xxx, and STM32L4Axxx Reference Manual (RM0351)
Comprehensive reference manual for STM32L47xxx, STM32L48xxx, STM32L49xxx, and STM32L4Axxx Arm®-based 32-bit microcontrollers. Covers system architecture, memory, peripherals, and programming.