STM32F103C8T6: ARM Cortex-M3 MCU Parameters, Applications & Buying Guide

The STM32F103C8T6 is one of the most widely used 32-bit microcontrollers worldwide. This guide covers its architecture, key specifications, typical applications and practical sourcing advice.

By Vigny (深圳市华芯购电子有限公司) · Published 2026-09-27 · Data verified 2026-09-29 · Sources: manufacturer datasheets & HuaXinGou stock verification

Architecture and Core

The STM32F103C8T6 is based on the ARM Cortex-M3 core running at up to 72 MHz, with 64 KB of Flash and 20 KB of SRAM. It belongs to the mainstream STM32F1 series and is manufactured by STMicroelectronics in a 48-pin LQFP48 package.

Key Peripherals

The chip integrates USART, SPI, I2C, USB 2.0 full-speed device, two 12-bit ADCs, timers including PWM channels, and a CAN controller. This rich peripheral set makes it ideal for industrial control, motor drives and IoT gateway designs.

Typical Applications

Common applications include motor control, PLCs, smart meters, drone flight controllers, printer control boards and various consumer electronics. Its balance of performance, price and ecosystem support explains its huge market share.

Sourcing and Alternatives

The STM32F103C8T6 is available in original packaging with multiple batch codes. Genuine parts can be verified by laser marking and date codes. For availability and pricing, submit an RFQ to HuaXinGou and we will confirm stock within 30 minutes on business days.