GD32F103VBT6 — GigaDevice ARM Cortex-M3 MCU, 72MHz, 128KB flash, 20KB SRAM, LQFP100 Category: MCU Pricing LCSC $1.59 Mouser $2.09 DigiKey $2.02 Farnell $2.23 Manufacturer: https://www.gigadevice.com