CH32F203R8T6-I — WCH
ARM Cortex-M3 MCU, 144MHz, 64KB flash, 20KB SRAM, LQFP64, industrial range -40..+85C

Category: MCU

Pricing
  LCSC         $1.17
  Mouser       $1.42
  DigiKey      $1.48
  Farnell      $1.62

Manufacturer: https://www.wch.cn