STMicroelectronics, 32bit ARM Cortex M4, STM32 Microcontroller, 160MHz, 256 kbyte Flash, 64-Pin LQFP

The STMicroelectronics devices belong to an ultra-low-power microcontrollers family (STM32U5 Series) based on the high-performance Arm Cortex M33 32-bit RISC core. They operate at a frequency of up to 160 MHz The Cortex-M33 core features a single-precision FPU (floating-point unit), that supports all the Arm single-precision data-processing instructions and all the data types. The Cortex M33 core also implements a full set of DSP (digital signal processing) instructions and a MPU (memory protection unit) that enhances the application security. The 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.

1.71 V to 3.6 V power supply
Low-power background-autonomous mode (LPBAM) autonomous peripherals with DMA and functional down to Stop 2 mode
90 nA Shutdown mode (23 wake-up pins)
200 nA Standby mode (23 wake-up pins)
370 nA Standby mode with RTC
1.4 μA Stop 3 mode with 16-Kbyte SRAM
2.2 μA Stop 3 mode with full SRAM
3.0 μA Stop 2 mode with 16-Kbyte SRAM
4.6 μA Stop 2 mode with full SRAM
16.3 μA/MHz Run mode at the rate 3.3 V