Securely connected equipment needs more than application processing. It also needs a trusted boot, protected storage, firmware isolation, and controlled debug access. The STM32H573 microcontroller, based on the Arm® Cortex®-M33 core, gives embedded designers a high-performance microcontroller unit (MCU) platform with a security foundation for connected applications.
The processor runs at up to 250MHz, and combines a floating-point unit (FPU), digital signal processing (DSP) instructions, and a memory protection unit (MPU). This enables the STM32H573 to handle control, connectivity, and security tasks without adding a separate security processor.
Security support follows the trusted-based security architecture (TBSA) requirements from Arm TrustZone®. The STM32H573 enables secure boot, secure data storage, secure firmware update, and secure firmware installation during production. The flexible life-cycle scheme combines multiple protection levels with secure debug authentication. This supports development, production, field maintenance, and locked deployment without using the same access policy at every stage.
Embedded flash memory and static random-access memory (SRAM) protection mechanisms include readout protection, write protection, secure areas, and hidden protection areas. These functions help protect firmware and security assets after programming. The STM32H573 is available with 2Mb of flash memory and integrates a fast advanced encryption standard (AES) coprocessor, a secure AES coprocessor with differential power analysis (DPA) resistance, and a public-key accelerator (PKA). Active tamper detection strengthens protection in equipment exposed to physical access.
Dual-bank Flash memory with error correction code (ECC)
4KB of backup SRAM retained in low-power modes
ART Accelerator with instruction cache and data cache
Flexible memory controller
Communication interfaces:
Up to four I2C interfaces
One I3C interface
Up to six SPI interfaces
Up to six USART interfaces
Up to six UART interfaces
One low-power UART
Two FDCAN interfaces
USB 2.0 full-speed host and device
USB Type-C and USB Power Delivery controller
Ethernet MAC interface
Analog functions:
Two 12-bit ADCs
Two DAC channels
Internal voltage-reference buffer
Temperature sensor
Operating-temperature range: -40°C to 125°C
Supply-voltage range: 1.71V to 3.6V
Package options: 64 pins to 225 pins
Secure IoT nodes
Access-control systems
Industrial gateways
Factory automation
Smart building controllers
Metering equipment
Medical monitoring equipment
Part Number: STM32H573I-DK
The STM32H573I-DK Discovery kit is a complete demonstration and development platform for the STM32H573IIK3Q microcontroller, featuring an Arm® Cortex®-M33 core with Arm TrustZone®.
The board enables engineers to evaluate the performance, security, graphics, connectivity, and peripheral capabilities of the STM32H573 MCU before designing custom hardware.
The Discovery kit includes a 1.54″ TFT color LCD with 240 x 240 pixel resolution, LED backlight, and touch panel. This display helps developers prototype secure human-machine interface (HMI) functions on the same board.
Connectivity features include USB Type-C, Ethernet, Wi-Fi, microSD card support, and expansion connectors. These interfaces allow engineers to evaluate connected embedded applications, secure firmware flows, and cloud-connected demonstrations.
Key features:
Arduino® Uno V3 expansion connector
STMod+ expansion connector
Pmod Type-2A and Type-4A expansion connectors
On-board STLINK-V3EC debugger/programmer
STM32CubeH5 software package support
MDK-ARM support
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