GD32F303VBU6 — GigaDevice ARM Cortex-M4F MCU, 120MHz, 128KB flash, 40KB SRAM, QFN100 Category: MCU Pricing LCSC $2.66 Mouser $3.29 DigiKey $3.51 Farnell $3.78 Manufacturer: https://www.gigadevice.com