GD32F330R8U6 — GigaDevice ARM Cortex-M4 MCU, 108MHz, 64KB flash, 8KB SRAM, QFN64 Category: MCU Pricing LCSC $1.26 Mouser $1.66 DigiKey $1.69 Farnell $1.90 Manufacturer: https://www.gigadevice.com