STMicroelectronics, 32bit ARM Cortex M33, STM32 Microcontroller, 160MHz, 512 Kbyte Flash, 56-Pin WLCSP

The STMicroelectronics Microcontroller devices embed high speed memories up to 512 Kbyte flash memory and 274 Kbyte SRAM, one Octo SPI flash memory interface, an extensive range of enhanced I/Os, peripherals connected to three APB buses, three AHB buses and a 32 bit multi AHB bus matrix.

1 Octo SPI memory interface
HASH hardware accelerator
4 Kbyte data cache for external memories
4 to 50 MHz crystal oscillator
1 ultra low power comparator
Internal 48 MHz with clock recovery