GD32F103RET6R — GigaDevice
ARM Cortex-M3 MCU, 72MHz, 512KB flash, 64KB SRAM, LQFP64, tape & reel, 2500 pcs

Category: MCU

Pricing
  LCSC         $2.19
  Mouser       $2.88
  DigiKey      $2.92
  Farnell      $2.98

Manufacturer: https://www.gigadevice.com