GD32F103V8U6 — GigaDevice ARM Cortex-M3 MCU, 72MHz, 64KB flash, 20KB SRAM, QFN100 Category: MCU Pricing LCSC $1.52 Mouser $1.86 DigiKey $1.95 Farnell $2.20 Manufacturer: https://www.gigadevice.com