APM32F103CBT6 — Geehy ARM Cortex-M3 MCU, 72MHz, 128KB flash, 20KB SRAM, LQFP48 Category: MCU Pricing LCSC $1.01 Mouser $1.30 DigiKey $1.34 Farnell $1.34 Manufacturer: https://www.geehy.com