STM32F103RCT6/RBT6 Development Board, ARM Cortex-M3 72 MHz
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Prices updated: 12 Oct 2026
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About this product
A small STM32 development board built around an ARM Cortex-M3 32-bit microcontroller running at up to 72 MHz. It includes a 3.3 V regulator, crystal oscillators, a USB OTG socket, a JTAG port, a reset button and a UART serial interface, making it suited to learning embedded programming and prototyping.
Specifications
- Core
- ARM Cortex-M3, 32-bit / ARM Cortex-M3 بسعة 32 بت
- Maximum clock
- 72 MHz / 72 ميجاهرتز
- Oscillators
- 8 MHz and 32.768 kHz / 8 ميجاهرتز و32.768 كيلوهرتز
- Voltage regulator
- AMS1117-3.3 (5 V to 3.3 V) / من 5 فولت إلى 3.3 فولت
- USB
- OTG socket / مقبس USB OTG
- Debug
- JTAG port and reset button / منفذ JTAG وزر إعادة الضبط
- Serial interface
- UART / UART
Frequently asked questions
Can I power the board from 5 V?
Yes. The on-board AMS1117-3.3 regulator steps 5 V down to 3.3 V. The microcontroller logic runs at 3.3 V, so use level shifting when connecting 5 V peripherals to its pins.
Which STM32 chip is actually on the board?
The title lists RCT6/RBT6 variants, while the description mentions an STM32F103C8T6 chip. Check the marking printed on the chip before following pinout or memory-size guides.
