STM32F401RCT6 ARM STM32 Minimum System Development Board – The Black Pill

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The STM32F401 ‘Black pill’ development board is an updated version of the original F103-based black pill.
This newer version features a more powerful Core-M4-based ARM CPU which brings with it a number of enhanced features, including more flash, SRAM memory, a Floating Point Unit, and an increased number of peripherals, including built-in USB type-C OTG support. However, possibly the most amazing feature of this development board is the price.
When compared to Atmel-based Arduino development boards this little development board boasts a very impressive array of features for a fraction of the cost.


  • Microcontroller: STM32F401RCT6
  • ARM® 32-bit Cortex® -M4 CPU with FPU
  • 84 MHz max CPU frequency
  • Voltage 3.3V/5V
  • 256 KB Flash
  • 64 KB SRAM
  • Communication: I2C, SPI, UART, CAN, USB
  • GPIO with external interrupt capability
  • Up to 11 Timers (six 16-bit, two 32-bit, two watchdog timers and a SysTick timer)
  • USB 2.0 full-speed device/host/OTG controller with on-chip PHY
  • RTC
  • USB-C type Connector


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