STM32F103C8T6
Overview
The STM32F103C8T6 is a mainstream ARM Cortex-M3 microcontroller from STMicroelectronics. It offers a balance of performance, peripherals, and cost, operating at up to 72MHz. With 64KB of Flash memory and 20KB of RAM, it is suitable for a wide range of embedded applications requiring general-purpose processing and connectivity.
Why Choose This Part
This microcontroller provides a robust feature set for general-purpose embedded designs, including multiple communication protocols like CANbus, USB, I2C, and SPI. Its ARM Cortex-M3 core at 72MHz offers good processing power for many applications. The inclusion of DMA, a CRC unit, and 5V-tolerant I/O pins further enhances its utility and ease of integration into diverse systems.
Applications
Key Specifications
Getting Started
To get started with the STM32F103C8T6, developers can use the STM32CubeIDE, STMicroelectronics' integrated development environment, which includes drivers, middleware, and a configuration tool. Evaluation boards such as the 'Blue Pill' or official STMicroelectronics Nucleo boards (though often featuring newer STM32 families, they provide a similar development experience) are excellent for prototyping. The SWD interface is commonly used for programming and debugging.
Dev Boards
Development boards and breakout modules featuring the STM32F103C8T6 or compatible chips — ready to use for prototyping.
STM32F103 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | RAM | I/O Pins | Package | ADC/DAC | Flash | Stock |
|---|---|---|---|---|---|---|
| STM32F103C8T6 (this part) | 20K | 37 | LQFP-48 | A/D 10x12b | 64KB | 2,612 |
| STM32F103VET6TR Tape & Reel | 64K | 80 | LQFP-100 | A/D 16x12b; D/A 2x.. | 512KB | 16,007 |
| STM32F103RBT6TR Tape & Reel | 20K | 51 | LQFP-64 | A/D 16x12b | 128KB | 17,074 |
| STM32F103C8T6TR Tape & Reel | 20K | 37 | LQFP-48 | A/D 10x12b | 64KB | 2,319 |
| STM32F103RET6 | 64K | 51 | LQFP-64 | A/D 16x12b; D/A 2x.. | 512KB | 1,783 |
| STM32F103RCT6 | 48K | 51 | LQFP-64 | A/D 16x12b; D/A 2x.. | 256KB | 26,084 |
| STM32F103RBT6 | 20K | 51 | LQFP-64 | A/D 16x12b | 128KB | 16,843 |
| STM32F103VET6 | 64K | 80 | LQFP-100 | A/D 16x12b; D/A 2x.. | 512KB | 28,408 |
| STM32F103ZET6 | 64K | 112 | LQFP-144 | A/D 21x12b; D/A 2x.. | 512KB | 3,999 |



