What this part is and where it fits
The ST STM32L4P5ZGT6P is a 32-bit ARM Cortex-M4 microcontroller from the STM32L4 ultra-low-power series, clocked at 120 MHz with 1 MB of Flash and 320 KB of RAM. It packs 115 I/O lines, a full set of peripherals including CAN, USB OTG, multiple SPI/I²C/UART, an LCD driver, and 16x12-bit ADC plus 2x12-bit DAC. The 144-LQFP package (20x20 mm) is a standard fine-pitch QFP — reworkable with a hot-air station, but not a field-swap part you'd change on site without a bench. This MCU targets industrial control, building automation, and sensor fusion applications where the balance of compute and low-power draw matters.
120 MHz Cortex-M4 — what it means for your design
The 120 MHz core with single-cycle multiply and hardware divide handles real-time control loops and DSP-style math without needing a separate coprocessor. The 1 MB Flash and 320 KB RAM support moderate buffering for display frames or communications stacks.
Lifecycle reality — EOL hot, act now
This part carries an EOL hot lifecycle status — the manufacturer has issued a discontinuation notice. That means the window for last-time buys is open but closing. If this MCU is on your BOM, secure your remaining volume now through independent distribution.