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STM32H755ZIT6

STM32H755ZIT6

STMicroelectronics
ARM® Cortex®-M4/M7 STM32H7 Microcontroller IC 32-Bit Dual-Core 240MHz, 480MHz 2MB (2M x 8) FLASH 144-LQFP (20x20)
Active4,687 in stock

Overview

The STM32H755ZIT6 is a high-performance dual-core microcontroller featuring an ARM Cortex-M7 core running at 480MHz and a Cortex-M4 core running at 240MHz. It integrates 2MB of Flash memory and 1MB of RAM, providing the computational overhead required for complex real-time applications and rich graphical interfaces. This device utilizes a dual-core architecture to offload communication and housekeeping tasks to the M4 core while the M7 handles intensive processing.

Why Choose This Part

The dual-core architecture allows for hardware-level isolation between safety-critical code and communication stacks. It features extensive connectivity including Dual-mode Quad-SPI, Ethernet, and USB OTG, alongside advanced security features like secure firmware upgrade support and active tamper detection. The 480MHz clock speed combined with L1 cache and the ART Accelerator ensures zero-wait-state execution from Flash.

Applications

Industrial Gateways
Utilizes dual-core processing and Ethernet MAC to manage industrial protocols like EtherCAT or Profinet while maintaining high-speed local data logging.
High-End Human Machine Interface (HMI)
The Chrom-ART Accelerator and LCD-TFT controller support sophisticated graphical user interfaces with minimal CPU load.
Motor Control and Power Conversion
High-resolution timers and fast 16-bit ADCs allow for precise control of multi-axis motor systems and complex power topologies.
Edge AI Inference
Leverages the 480MHz Cortex-M7 with double-precision FPU and DSP instructions for local sensor fusion and neural network execution.

Key Specifications

Speed 240MHz, 480MHz
RAM Size 1M x 8
Core Size 32-Bit Dual-Core
Peripherals Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
Connectivity CANbus, EBI/EMI, Ethernet, I2C, IrDA, LINbus, MDIO, MMC/SD/SDIO, QSPI, SAI, SPDIF, SPI, SWPMI, UART/USART, USB OTG
Mounting Type Surface Mount
Number of I/O 97
Core Processor ARM Cortex-M4/M7
Package / Case 144-LQFP
Data Converters A/D 23x16b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 2MB (2M x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 144-LQFP (20x20)
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V

Getting Started

Start development with the NUCLEO-H755ZI-Q evaluation board, which provides an on-board ST-LINK debugger and easy access to all I/O. Use the STM32CubeIDE for integrated code generation and debugging, and leverage the STM32CubeH7 software package for middleware and dual-core communication examples. Ensure the power strategy accounts for the SMPS step-down converter to optimize efficiency at high clock speeds.

Dev Boards

Development boards and breakout modules featuring the STM32H755ZIT6 or compatible chips — ready to use for prototyping.

NUCLEO-H7A3ZI-Q STMicroelectronics
STM32H7A3 Nucleo-144 STM32H7 ARM® Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
Digi-Key Mouser 605 in stock
STM32H7B3I-EVAL STMicroelectronics
STM32H7B3LI STM32H7 ARM® Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
Digi-Key Mouser 11 in stock
The Arduino GIGA R1 WiFi combines the STM32H7 dual-core microcontroller with onboard Wi-Fi® and Bluetooth® 5.x connectiv
Digi-Key 401 in stock
STM32H735G-DK STMicroelectronics
STM32H735IG Discovery STM32H7 ARM® Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
Digi-Key 488 in stock
NUCLEO-H755ZI-Q STMicroelectronics
STM32H755ZI Nucleo-144 STM32H7 ARM® Cortex®-M4, Cortex®-M7 MCU 32-Bit Embedded Evaluation Board
Part of STM32 family » STM32H755

STM32H755 Family

Part NumberDifferenceStock
STM32H755IIT6 IIT6 295

Also Consider

STM32H745ZIT6 STMicroelectronics - Very similar dual-core architecture but omits the hardware crypto acceleration found in some H755 variants if security requirements are lower.
NUCLEO-H755ZI-Q STMicroelectronics - The official development board for this specific MCU, including the integrated debugger and Ethernet jack.