STM32F103C8T6

ARM Cortex-M3 MCU, 72MHz, 64KB Flash, LQFP-48

The STM32F103C8T6 is a mainstream ARM Cortex-M3 microcontroller from STMicroelectronics. It features 64KB Flash, 20KB SRAM, and runs at up to 72MHz. Popular in embedded projects and the basis for the "Blue Pill" development board.