APM32F103RBT6R — Geehy ARM Cortex-M3 MCU, 72MHz, 128KB flash, 20KB SRAM, LQFP64, tape & reel, 2500 pcs Category: MCU Pricing LCSC $1.17 Mouser $1.44 DigiKey $1.48 Farnell $1.66 Manufacturer: https://www.geehy.com