STM32 Blue Pill（STM32F103C8T6）
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For more insights about the technical specifcations refer to the official datsheet and reference manual by STMicroelectronics.
Naming Convention of STM microcontrollers
| Parameter |
Meaning |
| STM |
name of the manufacturer (STMicroelectronics) |
| 32 |
32 bit ARM architecture |
| F |
Foundation |
| 1 |
Core (ARM Cortex M3) |
| 03 |
Line (describes peripherals and speed) |
| C |
48 pins |
| 8 |
64 KB flash memory |
| T |
LQFP package (Low Profile Quad Flat Pack) |
| 6 |
Operating Temperature Range (-40 °C to 85 °C) |
Technical Specifications of STM32
| Parameter |
Meaning |
| Architecture |
32 bit ARM Cortex M3 |
| Operating Voltage |
2.7V to 3.6V |
| CPU Frequency |
72 MHz |
| Number of GPIO pins |
37 |
| Number of PWM pins |
12 |
| Analog Input Pins |
10 (12 bit resolution) |
| I2C Peripherals |
2 |
| SPI Peripherals |
2 |
| CAN 2.0 Peripheral |
1 |
| Timers |
3(16-bit), 1 |
| Flash Memory |
64KB |
| RAM |
20kB |
User LED
| Name |
PC13 |
| Reference |
- |
| Type |
LED |
| Connected to |
PC13 |
| Mode |
Sink |
| # |
Name |
Function |
Connected to |
| 1 |
3V3 |
VCC |
+3.3V rail |
| 2 |
DIO |
SWDIO |
PA13 |
| 3 |
CLK |
SWCLK |
PA14 |
| 4 |
GND |
GND |
Ground plane |
Other
- Trivia: This board got its name from a forum post at the STM32duino forums and is a reference to the movie The Matrix.