The STM32F401xD/xE devices are based on the high-performance ARM Cortex -M4 32-bit RISC core operating at a frequency of up to 84 MHz. Its Cortex-M4 core features a Floating point unit (FPU) single precision which supports all ARM single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
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