GD32F103ZCT6 — GigaDevice ARM Cortex-M3 MCU, 72MHz, 256KB flash, 48KB SRAM, LQFP144 Category: MCU Pricing LCSC $2.22 Mouser $2.81 DigiKey $3.09 Farnell $3.28 Manufacturer: https://www.gigadevice.com