STM32H573IIT6

Product Overview

The STM32H573IIT6 is a high-performance 32-bit microcontroller from STMicroelectronics’ STM32H5 series, based on the Arm® Cortex®-M33 processor operating at up to 250 MHz. It integrates 2 MB of Flash memory, 640 KB of RAM, TrustZone® security technology, hardware cryptographic capabilities, and a comprehensive set of analog, timer, and communication peripherals. Designed for demanding embedded applications, it supports industrial automation, connected devices, advanced control systems, and secure data processing. The device is housed in a 176-pin LQFP package measuring 24 × 24 mm and is rated for industrial operation from -40°C to +85°C.

Key Features

• Arm Cortex-M33 32-bit processor, up to 250 MHz

• Single-precision floating-point unit (FPU)

• DSP instructions and memory protection unit (MPU)

• 2 MB dual-bank Flash memory

• 640 KB SRAM

• Arm TrustZone security technology

• Hardware cryptographic and hash acceleration

• True random number generator

• Two 12-bit ADCs and a 12-bit DAC

• USB 2.0 full-speed host and device interface

• Two FDCAN interfaces

• 10/100 Mbps Ethernet MAC with DMA

• USB Type-C® and USB Power Delivery support

• Multiple SPI, I²C, I3C, USART, and audio interfaces

• LQFP-176 package

• ECOPACK2 environmental compliance

Technical Specifications

Processor & Architecture

The STM32H573IIT6 uses the Arm Cortex-M33 core, delivering up to 250 MHz processing performance for advanced embedded control, signal processing, and secure applications. Its single-precision FPU and DSP instruction set accelerate mathematical operations, while the MPU helps manage memory access and application isolation.

The device architecture combines high-speed internal memory, multiple bus interfaces, and integrated DMA controllers to support efficient data movement between memory and peripherals.

Memory & Storage

• 2 MB dual-bank embedded Flash memory

• 640 KB SRAM

• External memory support through the flexible memory controller where supported by the device package

• Octo-SPI and Quad-SPI memory interface capabilities

• 96-bit unique device identification

• Hardware CRC calculation

The dual-bank Flash architecture supports flexible firmware management, while the large RAM capacity is suitable for communication buffers, real-time processing, and embedded applications with substantial runtime memory requirements.

Analog Peripherals

• Two 12-bit ADCs with conversion rates up to 5 MSPS under specified conditions

• One 12-bit DAC with two output channels

• Integrated digital temperature sensor

• Analog resources for sensor acquisition and control applications

These peripherals support measurement systems, industrial monitoring, closed-loop control, and applications requiring integrated analog conversion.

Timer & PWM Resources

The STM32H573IIT6 offers extensive timer resources for real-time control and event management:

• Multiple 16-bit general-purpose timers

• Low-power timers

• Two 32-bit timers

• Advanced motor-control timer resources

• Real-time clock

• Independent and window watchdog timers

• Input capture, output compare, PWM, and encoder functions on supported channels

These resources are suitable for motor control, pulse generation, event measurement, and precise timing applications.

Communication & Connectivity

The STM32H573IIT6 integrates a broad selection of wired communication interfaces:

• USB 2.0 full-speed host and device

• USB Type-C® and USB Power Delivery support

• Two FDCAN interfaces

• 10/100 Mbps Ethernet MAC with DMA

• I3C interface

• Multiple I²C interfaces with SMBus/PMBus support

• Multiple USART and low-power UART interfaces

• SPI and I²S interfaces

• Serial audio interfaces (SAI)

• Camera interface

• Parallel slave synchronous interface

• HDMI-CEC support

The actual number of usable interfaces depends on pin multiplexing and peripheral configuration.

Clock & Power Management

The device provides flexible clock-generation and supply-management features for high-performance and energy-conscious designs. Clock sources include internal and external oscillators, with PLL resources for generating system and peripheral clocks.

Integrated power-on reset, power-down reset, programmable voltage detection, and brownout reset help maintain controlled startup and operation. The device supports an embedded regulator configuration using an LDO or an internal SMPS option, as applicable to the selected part and design.

Low-Power Operation

The STM32H573IIT6 provides multiple low-power operating modes to reduce energy consumption when full processing performance is unnecessary. These include Sleep and Stop modes, along with configurable clock gating and peripheral power management.

Low-power behavior depends on clock configuration, memory retention, active peripherals, supply voltage, and application workload.

Power Management

The STM32H573IIT6 supports a 1.62–3.6 V supply range, with application supply and I/O operating requirements defined in the datasheet. Integrated reset and voltage-monitoring circuits support reliable operation, while its clock and regulator options help balance processing performance and power consumption.

Security & Data Integrity

• Arm TrustZone security technology

• Hardware cryptographic acceleration

• Hardware hash accelerator

• True random number generator compliant with NIST SP 800-90B

• Active tamper detection features

• 96-bit unique device identification

• Hardware CRC calculation

• Authenticated debug and configurable device lifecycle

• Memory protection unit

These features support secure boot and firmware design strategies, cryptographic operations, device authentication, and data-integrity checking when correctly implemented in application firmware.

Development & Debugging

The STM32H573IIT6 supports serial-wire debugging, JTAG, and Embedded Trace Macrocell (ETM) capabilities. Developers can use compatible STM32 development tools, software libraries, and security-development resources to implement and debug complex embedded applications.

Its processing performance, large memory resources, and integrated peripherals support sophisticated control, connectivity, and secure embedded workloads.

Applications

• Industrial automation and control

• Secure IoT gateways and connected devices

• Industrial communication equipment

• Advanced motor-control systems

• Embedded networking products

• Measurement and instrumentation

• USB-connected devices

• Smart building and energy-management systems

• Secure data acquisition equipment

• Real-time embedded processing

Benefits

• High-performance 250 MHz Cortex-M33 processing

• 2 MB Flash and 640 KB RAM

• Integrated TrustZone and cryptographic features

• Broad connectivity including Ethernet, USB, and FDCAN

• Extensive analog and timer resources

• Hardware acceleration for mathematical and data-processing workloads

• Industrial operating temperature range

• Established STM32 development ecosystem

Packaging & Ordering Information

• Part Number: STM32H573IIT6

• Manufacturer: STMicroelectronics

• Device Family: STM32H5 series

• Package: LQFP-176

• Package Code: LQFP176

• Package Size: 24 × 24 × 1.4 mm

• Packing Type: Tray

• Supply Voltage: 1.62–3.6 V

• Operating Temperature: -40°C to +85°C

• Product Status: Active, in volume production

• Grade: Industrial

• RoHS: ECOPACK2

Datasheet

For complete electrical characteristics, pin configuration, memory architecture, ADC specifications, timer configuration, communication interfaces, absolute maximum ratings, and application information, please refer to the official STMicroelectronics documentation.

Datasheet: Official STM32H573IIT6 Family Datasheet

Frequently Asked Questions

What is the maximum operating frequency of STM32H573IIT6?

The Arm Cortex-M33 core operates at up to 250 MHz.

How much memory does STM32H573IIT6 have?

It integrates 2 MB of Flash memory and 640 KB of RAM.

What package does STM32H573IIT6 use?

It uses a 176-pin LQFP package measuring 24 × 24 × 1.4 mm.

Does STM32H573IIT6 support Ethernet and USB?

Yes. It includes a 10/100 Mbps Ethernet MAC and a USB 2.0 full-speed host/device interface. USB Type-C and USB Power Delivery functionality are also supported.

Does STM32H573IIT6 support hardware security features?

Yes. It includes TrustZone technology, cryptographic and hash acceleration, a true random number generator, and authenticated-debug capabilities.

What is the operating temperature range?

The specified operating range is -40°C to +85°C.

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