The STM32L4 microcontroller is a 32-bit single-core processor based on the ARM Cortex-M4 architecture. It operates at an 80 MHz clock speed and features 256 KB of flash memory, organized as 256 K x 8 bits. This device is packaged in a 100-pin LQFP (Lead-Free Quad Flat Pack) with dimensions of 14x14 mm.