The STM32G071KBU6N: 64 MHz core speed. The 30 I/O pins are brought out on a 32-pin package, so every pin is an I/O — no dedicated power-only pins beyond the supply pair — which is unusual at this pin count and gives the layout engineer more routing freedom on a two-layer board.
128 KB Flash, 36 KB SRAM — sizing the firmware budget
128 KB Flash and 36 KB SRAM.
USB Type-C Power Delivery — a differentiating peripheral
The connectivity block includes USB Type-C with Power Delivery support, which is unusual for a sub-32-pin MCU at this price tier. That means the chip can act as a USB-C sink or source without an external PD PHY, saving a couple of dollars and a square centimetre of board area in a charger or power-bank design.
The base product number STM32G071 shares the same die and peripherals across the KBU6 and other package variants, so a pin-compatible drop-in to a smaller or larger Flash density is available within the family without a board spin.
