Features: Core: 32-bit Cortex-M4 CPU, with FPU, Adaptive Real-Time Accelerator (ART Accelerator), capable of zero-wait-state execution from flash, frequency up to 170 MHz, 213 DMIPS, with MPU and DSP instructions. Operating conditions: VDD, VDDA voltage range is 1.71 V to 3.6 V. Mathematical hardware accelerators: CORDIC for trigonometric function acceleration, FMAC as a filtering mathematical accelerator. 128 KB flash, supports ECC, features proprietary code read-out protection (PCROP) and secure storage area, 1 KB OTP. 22 KB SRAM, first 16 KB implements hardware parity check. General acceleration: 10 KB SRAM on instruction and data buses, with hardware parity check (CCM SRAM). Reset and power management: features power-on/power-down reset (POR/PDR/BOR), programmable voltage detector (PVD), low-power modes (sleep, stop, standby and shutdown), VBAT powers RTC and backup registers. Clock management: 4 to 48 MHz crystal oscillator, 32 kHz oscillator with calibration, internal 16 MHz RC optional PLL (±1%), internal 32 kHz RC oscillator (±5%)