The new STM32L451, STM32L452, and STM32L462 lines from STMicro-electronics integrate a digital filter for sigma-delta modulators, enabling advanced audio capabilities such as noise cancellation or sound localisation on an inexpensive microcontroller. Up to 512 KB on-chip Flash and 160 KB SRAM provide generous code and data storage. The MCUs also feature a true random-number generator that streamlines development of security-conscious applications such as connected smart devices. The STM32L462 further enhances support for developing secure devices by integrating an AES-256 cryptographic hardware accelerator. Other features include smart analog peripherals such as a 12-bit 5 MSps ADC, internal voltage reference, and ultra-low-power comparators.
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