STM32H743ZIT6 STMicroelectronics STM32H743ZIT6 MCU, ARM Cortex-M7, 2 MB Flash / 1 MB SRAM, LQFP-144
STM32H743ZIT6 is a high-performance 32-bit microcontroller based on the ARM Cortex-M7 core, operating at clock speeds up to 480 MHz. It integrates large on-chip memory, advanced peripheral interfaces, and hardware acceleration, making it suitable for compute-intensive embedded applications in industrial, networking, and real-time control systems.
STM32H743ZIT6 is a 32-bit ARM Cortex-M7 microcontroller from STMicroelectronics, operating up to 480 MHz with 2 MB Flash and 1 MB SRAM. It is used in high-performance industrial, networking, and real-time embedded systems requiring advanced connectivity, graphics acceleration, and deterministic control.
Key Features
- 480 MHz ARM Cortex-M7 Core with FPU and DSP
Enables deterministic real-time processing and efficient execution of signal-processing and control algorithms. - 2 MB Embedded Flash and 1 MB SRAM
Supports complex firmware, RTOS environments, and memory-intensive applications without reliance on external memory. - Advanced Connectivity Interfaces
Integrated Ethernet MAC, USB OTG FS/HS, CAN FD, and multiple serial interfaces simplify system-level communication design. - Graphics and DMA Acceleration
Chrom-ART (DMA2D) and ART Accelerator™ reduce CPU load for graphics rendering and memory access optimization. - Industrial-Grade Operating Range
Designed for stable operation from –40 °C to +85 °C in demanding industrial and embedded environments.
When to Use STM32H743ZIT6
Use STM32H743ZIT6 when the design requires:
- Cortex-M7 real-time performance above 400 MHz
- Large internal Flash and SRAM without external memory
- Integrated Ethernet, USB, and CAN FD in a single MCU
- Deterministic interrupt latency for control or automation
- Industrial temperature operation in production systems
When NOT to Use STM32H743ZIT6
STM32H743ZIT6 may not be suitable if:
- The application requires ultra-low power sleep modes (consider STM32L series)
- Cost-sensitive designs do not need high clock speeds or large SRAM
- Automotive-grade (AEC-Q100) qualification is mandatory
- External DDR memory or application processors are required
Technical Specifications Table
| Parameter | Specification |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | STM32H743ZIT6 |
| MCU Family | STM32H7 Series |
| CPU Core | ARM Cortex-M7 with FPU & DSP |
| Max Clock Frequency | Up to 480 MHz |
| Flash Memory | 2 MB |
| RAM | 1 MB SRAM |
| Operating Voltage | 1.62 V – 3.6 V |
| Package | LQFP-144 |
| Operating Temperature Range | –40 °C to +85 °C |
Typical Applications
STM32H743ZIT6 is commonly used in embedded systems that require high computational throughput, low-latency response, and extensive peripheral integration. In industrial automation, it supports real-time motor control, programmable logic controllers (PLCs), and human-machine interfaces (HMIs) where deterministic execution and fast data handling are critical.
In networking and communication equipment, the integrated Ethernet MAC and high-speed serial interfaces allow the MCU to act as a control processor for gateways, industrial routers, and protocol converters. The MCU is also applied in medical and laboratory instruments, where reliable real-time data acquisition, signal processing, and secure communication are required. Additionally, it is suitable for advanced IoT edge devices that combine local data processing, graphical displays, and secure connectivity.
MCU Comparison Table
| Model | CPU Core | Max Clock | Flash / RAM | Package |
|---|---|---|---|---|
| STM32H743ZIT6 | Cortex-M7 | 480 MHz | 2 MB / 1 MB | LQFP-144 |
| STM32H742ZIT6 | Cortex-M7 | 480 MHz | 2 MB / 1 MB | LQFP-144 |
| STM32H750ZBT6 | Cortex-M7 | 480 MHz | 128 KB / 1 MB | LQFP-144 |
| STM32F767ZIT6 | Cortex-M7 | 216 MHz | 2 MB / 512 KB | LQFP-144 |
This comparison highlights differences in memory size, performance class, and MCU generation to assist engineers in device selection.
Cross Reference / Alternative MCU Section
Comparable or alternative microcontrollers that may be considered depending on application requirements include:
- STM32H742ZIT6
- STM32H750ZBT6
- STM32F767ZIT6
- NXP i.MX RT1062
- Microchip SAM E70 Series
When evaluating alternative MCUs, designers should verify firmware compatibility, pinout alignment, peripheral availability, and real-time performance. Substitution may require software adaptation, timing validation, and electrical verification at the system level.
STM32H743ZIT6 is functionally comparable to other high-performance Cortex-M7 MCUs such as STM32H742ZIT6, STM32F767ZIT6, and NXP i.MX RT1062. However, clock speed, memory architecture, and peripheral integration differ and should be evaluated per application.
STM32H743ZIT6 is available for B2B supply through authorized and independent electronic component distribution channels. Procurement options typically support bulk quantities, project-based sourcing, and long-term supply planning for industrial programs.
RFQ-based purchasing allows engineering and procurement teams to confirm availability, lead time, date code, and packaging options before order placement. This approach is commonly used for production builds, contract manufacturing, and lifecycle-managed embedded products requiring consistent component sourcing.
FAQ About ST STM32H743ZIT6 MCU
What types of applications is STM32H743ZIT6 best suited for?
STM32H743ZIT6 is suitable for high-performance embedded applications such as industrial automation controllers, networking devices, advanced HMIs, and real-time signal processing systems. Its Cortex-M7 core and large on-chip memory support complex firmware and deterministic execution.
Does STM32H743ZIT6 support industrial temperature requirements?
Yes. The device is specified for an operating temperature range of –40 °C to +85 °C, making it appropriate for industrial environments where extended temperature tolerance and long-term reliability are required.
Can STM32H743ZIT6 be replaced with another STM32H7 device?
Some STM32H7 series MCUs share similar architectures and packages; however, memory size, peripheral sets, and pin assignments may differ. Firmware compatibility and hardware design should be reviewed carefully before selecting a replacement.
Is STM32H743ZIT6 suitable for long-term production sourcing?
STM32H7 series devices are widely used in industrial and embedded markets. For long-term projects, it is recommended to confirm lifecycle status, minimum order quantities, and supply continuity through an RFQ process with a qualified distributor.
Is STM32H743ZIT6 a microcontroller or processor?
STM32H743ZIT6 is a microcontroller (MCU) with integrated Flash, SRAM, peripherals, and real-time control features. It does not require an external operating system or memory controller.
Does STM32H743ZIT6 support real-time applications?
Yes. The ARM Cortex-M7 core, combined with deterministic interrupt handling and high clock frequency, makes it suitable for real-time embedded control systems.
Is STM32H743ZIT6 suitable for industrial use?
Yes. It supports an operating temperature range of –40 °C to +85 °C and is commonly used in industrial automation and embedded control equipment.
Specification: STMicroelectronics STM32H743ZIT6 MCU, ARM Cortex-M7, 2 MB Flash / 1 MB SRAM, LQFP-144
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