STMicroelectronics, 32bit ARM Cortex M55, STM32 Microcontroller, 1GHz, 1 kbyte Flash, 264-Pin VFBGA

The STMicroelectronics devices are based on the high-performance Arm Cortex M55, operating at a frequency up to 800 MHz The Cortex M55 core features the Arm Helium vector processing technology. On top of standard microcontroller tasks, this core enables energy-efficient digital signal processing. The Cortex M55 is equipped with a floating-point unit (FPU) that supports single- and half-precision (IEEE 754 compliant) data-processing. The Cortex M55 includes a 32-Kbyte ICACHE, a 32-Kbyte DCACHE, as well as 128-Kbyte data TCM RAM and 64-Kbyte instruction TCM RAM with ECC for critical real-time routines. These microcontrollers have Trust Zone aware support and a memory protection unit (MPU) for enhanced application security. A secure boot ROM ensures secure booting from external interfaces.

Secure firmware upgrade support with TF-M (trusted firmware-M)
Two AES coprocessors, including one with
DPA (differential power analysis) resistance
Public key accelerator (PKA) and DPA resistant
On-the-fly encryption/decryption of external memories
HASH hardware accelerator
True random number generator (RNG) and NIST SP800-90B compliant
96-bit unique ID
1.5-Kbyte OTP fuses
Active tampers