
STM32F103C8T6 Blue Pill 32-Bit ARM Cortex-M3 MCU
STM32F103C8T6 — 32-Bit ARM Cortex-M3 Microcontroller (Blue Pill)
The STM32F103C8T6, popularly known as the "Blue Pill", is a powerful 32-bit ARM Cortex-M3 microcontroller from STMicroelectronics. Running at 72 MHz with 64KB Flash and 20KB RAM, it offers exceptional performance at a very low cost, making it one of the most popular MCUs for advanced embedded projects, robotics, and IoT applications in Pakistan.
Technical Specifications
| Parameter | Value |
|---|---|
| Architecture | 32-bit ARM Cortex-M3 |
| CPU Speed | Up to 72 MHz |
| Program Memory (Flash) | 64 KB |
| RAM | 20 KB |
| I/O Pins | 37 |
| Timers | 7 (including advanced control timer) |
| ADC | 12-bit, 10 channels |
| DAC | None |
| Communication | 2x USART, 2x SPI, 2x I2C, USB 2.0, CAN |
| PWM Channels | Up to 15 |
| Operating Voltage | 2.0V – 3.6V |
| Package | LQFP-48 |
| Operating Temperature | -40°C to +85°C |
Key Features
- 72 MHz ARM Cortex-M3 — far more powerful than 8-bit MCUs
- USB 2.0 full-speed interface
- CAN 2.0B active for automotive/industrial use
- 12-bit ADC with 10 channels
- DMA controller for efficient data transfer
- Compatible with Arduino IDE (via STM32duino) and STM32CubeIDE
- SWD/JTAG debug interface
Pin Configuration (LQFP-48)
Key pins: VDD (Pins 1, 24, 36, 48), VSS (Pins 23, 35, 47), NRST (Pin 7), BOOT0 (Pin 44), PA0-PA15 (Port A), PB0-PB15 (Port B), PC13-PC15 (Port C), USB D+ (PA12), USB D- (PA11), SWD CLK (PA14), SWD IO (PA13), CAN TX (PB9), CAN RX (PB8).
Applications
- Advanced robotics and motor control
- USB HID and CDC devices
- Industrial automation with CAN bus
- High-speed data acquisition
- Drone flight controllers
- IoT gateways and edge computing
Datasheet & Resources
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