ST Microcontroller 32bit 256KB UFQFPN

Ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. Features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. Implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.