STM32 Development Board Pinouts
Compare pinouts, electrical constraints, and peripheral capabilities across STM32 development boards.
44 pins
STM32F103C8T6 Blue Pill
STM32F103C8T6 (72 MHz)
Popular 32-bit ARM Cortex-M3 microcontroller board running at 72 MHz with 64 KB Flash and 20 KB SRAM in a DIP-40 form factor.
44 pinsSTM32F411CEU6 Black Pill
STM32F411CEU6 (100 MHz)
High-performance ARM Cortex-M4 development board clocked at 100 MHz with 512 KB Flash, 128 KB SRAM, and USB-C.
Hardware comparison
| Board | MCU | Pins | Clock | SRAM | Flash | Logic voltage |
|---|---|---|---|---|---|---|
| STM32F103C8T6 Blue Pill | STM32F103C8T6 | 44 | 72 MHz | 20 KB | 64 KB | 3.3 V |
| STM32F411CEU6 Black Pill | STM32F411CEU6 | 44 | 100 MHz | 128 KB | 512 KB | 3.3 V |