STMicroelectronics, 32bit ARM Cortex M33, STM32WBA Microcontroller, 100MHz, 1 Mbyte Flash, 121-Pin UFBGA

The STMicroelectronics ARM Microcontroller are multiprotocol wireless and ultra-low-power devices embed a powerful and ultra-low-power radio compliant with the Bluetooth LE and with IEEE 802.15.4-2015. They contain a high-performance Arm Cortex M33 32-bit RISC core, and operate at a frequency of up to 100 MHz The devices integrate a 2.4 GHz RADIO supporting Bluetooth LE, Matter, Thread, and ZigBee, and make possible to use proprietary protocols and concurrent operation modes. They provide support for an array of up to eight antennas, and an external power amplifier. PTA (packet traffic arbitration) interface is supported as well. The Cortex-M33 core features a single-precision floating-point unit (FPU), supporting all the Arm single-precision data-processing instructions and all the data types.

Secure firmware upgrade support with TF-M
Two AES coprocessors and including one with DPA resistance
Public key accelerator and DPA resistant
HASH hardware accelerator
True random number generator and NIST SP800-90B compliant
96-bit unique ID
Active tampers
CRC calculation unit