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STM32U575xx Description
21
2 Description
The STM32U575xx 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 2 Mbytes of flash memory and 786 Kbytes
of SRAM), an FSMC (flexible external memory controller) for static memories (for devices
with packages of 90 pins and more), two Octo-SPI flash memory interfaces (at least one
Quad-SPI available on all packages) and an extensive range of enhanced I/Os and
peripherals connected to three APB buses, three AHB buses and a 32-bit multi-AHB bus
matrix.
The devices offer security foundation compliant with the TBSA (trusted-based security
architecture) requirements from Arm
®
. It embeds the necessary security features to
implement a secure boot, secure data storage and secure firmware update. Besides these
capabilities, the devices incorporate a secure firmware installation feature that allows the
customer to secure the provisioning of the code during its production. A flexible lifecycle is
managed thanks to multiple levels of readout protection and debug unlock with password.
Firmware hardware isolation is supported thanks to securable peripherals, memories and
I/Os, and privilege configuration of peripherals and memories.
The devices feature several protection mechanisms for embedded flash memory and
SRAM: readout protection, write protection, secure, and hide protection areas.
The devices embed several peripherals reinforcing security: with DPA resistance, a HASH
hardware accelerator, and a true random number generator.
The devices offer active tamper detection and protection against transient and
environmental perturbation attacks, thanks to several internal monitoring generating secret
data erase in case of attack. This helps to fit the PCI requirements for point of sales
applications.
The devices offer one fast 14-bit ADC (2.5 Msps), one 12-bit ADC (2.5 Msps), two
comparators, two operational amplifiers, two DAC channels, an internal voltage reference
buffer, a low-power RTC, four 32-bit general-purpose timers, two 16-bit PWM timers
dedicated to motor control, three 16-bit general-purpose timers, two 16-bit basic timers and
four 16-bit low-power timers.
The devices support an MDF (multifunction digital filter) with six filters dedicated to the
connection of external sigma-delta modulators. Another low-power digital filter dedicated to
audio signals is embedded (ADF), with one filter supporting sound-activity detection. The
devices embed also a Chrom-ART Accelerator dedicated to graphic applications, and
mathematical accelerators (a trigonometric functions accelerator plus a filter mathematical
accelerator). In addition, up to 22 capacitive sensing channels are available.
The devices also feature standard and advanced communication interfaces such as:
four
I
2
Cs, three SPIs, three USARTs, two UARTs, one low-power UART, two SAIs, one
digital camera interface (DCMI), two SDMMCs, one FDCAN, one USB OTG full-speed,