STM32F401RB Key Features
- Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execu
- Memories
- Up to 256 Kbytes of Flash memory
- Up to 64 Kbytes of SRAM
- Clock, reset and supply management
- 1.7 V (PDR OFF) or 1.8 V (PDR ON) to 3.6 V application supply and I/Os
- POR, PDR, PVD and BOR
- 4-to-26 MHz crystal oscillator
- Internal 16 MHz factory-trimmed RC
- 32 kHz oscillator for RTC with calibration