APM32F103ZET6-I — Geehy ARM Cortex-M3 MCU, 72MHz, 512KB flash, 64KB SRAM, LQFP144, industrial range -40..+85C Category: MCU Pricing LCSC $2.84 Mouser $3.42 DigiKey $3.60 Farnell $4.00 Manufacturer: https://www.geehy.com