GD32F303ZEU6 — GigaDevice ARM Cortex-M4F MCU, 120MHz, 512KB flash, 64KB SRAM, QFN144 Category: MCU Pricing LCSC $3.56 Mouser $4.27 DigiKey $4.70 Farnell $5.13 Manufacturer: https://www.gigadevice.com