GD32F103R8T6 — GigaDevice ARM Cortex-M3 MCU, 72MHz, 64KB flash, 20KB SRAM, LQFP64 Category: MCU Pricing LCSC $1.15 Mouser $1.42 DigiKey $1.47 Farnell $1.48 Manufacturer: https://www.gigadevice.com