GD32F103RCT6 — GigaDevice ARM Cortex-M3 MCU, 72MHz, 256KB flash, 48KB SRAM, LQFP64 Category: MCU Pricing LCSC $1.66 Mouser $2.23 DigiKey $2.18 Farnell $2.27 Manufacturer: https://www.gigadevice.com