STMicroelectronics STM32H745ZGT6

Overview

STM32H745ZGT6 from STMicroelectronics is a dual-core 32-bit Arm® Cortex®-M7 (up to 480 MHz) and Cortex®-M4 (up to 240 MHz) microcontroller with 2 MB flash, 1 MB RAM, integrated SMPS regulator, and 168 GPIOs. It features triple PLL clock architecture, hardware JPEG codec, LCD-TFT controller, and dual CAN FD interfaces - deployed in industrial HMI, motor control gateways, and real-time vision edge nodes.

For engineers reviewing the STM32H745ZGT6 datasheet, STM32H745ZGT6 pinout, STM32H745ZGT6 application, or STM32H745ZGT6 equivalent, key selection considerations include dual-core deterministic timing, on-chip SMPS efficiency for low-power operation, TFBGA240+25 package I/O density, and hardware-accelerated graphics/audio peripherals.

Technical Context

The device implements a three-domain power architecture (D1/D2/D3), enabling independent clock gating and voltage scaling across high-performance, communication, and system-control subsystems. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, supporting concurrent high-bandwidth data flows between CPU cores, DMA controllers, and peripherals.

Dual-core operation is coordinated via shared memory, mailbox interrupts, and semaphores, with Cortex-M7 handling compute-intensive tasks (e.g., JPEG decode, FFT) while Cortex-M4 manages real-time I/O (CAN FD, SDMMC, USB OTG). The ART Accelerator enables zero-wait-state execution from flash at 240 MHz for the M4 core.

Key Specifications

Pinout & Package

STM32H745ZGT6 uses a 240-ball TFBGA package with 25 additional balls for VSS/VDD decoupling, optimized for high-density PCB layouts and thermal dissipation in industrial edge applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core Arm Cortex-M7/M4 microcontroller applications.

Compared with STM32H745ZGT6, STM32H753ZIT6 trades SMPS-based power efficiency for hardware crypto acceleration, while i.MX RT1176DVMAA offers higher CPU throughput at the cost of analog integration and package size - making STM32H745ZGT6 optimal for balanced real-time control, vision, and power-sensitive industrial edge nodes.

Availability

STM32H745ZGT6 is available at Aetrix Electronics and suitable for industrial HMI gateways, motor control edge nodes, smart camera processors, and medical imaging front-ends requiring stable component supply across multi-year production cycles.

Supply support for STM32H745ZGT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power management ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

The STM32H7 series targets high-performance embedded applications demanding real-time determinism, rich peripheral integration, and energy efficiency - especially where dual-core asymmetry, hardware-accelerated media processing, and robust industrial-grade reliability are essential.

FAQ

What is the maximum operating frequency of each core in STM32H745ZGT6?

The Cortex-M7 core operates up to 480 MHz with double-precision FPU and L1 cache (16 KB instruction + 16 KB data), delivering 1027 DMIPS. The Cortex-M4 core runs up to 240 MHz with single-precision FPU and ART Accelerator, achieving 300 DMIPS. Both cores support independent clock domains and voltage scaling.

Does STM32H745ZGT6 support hardware encryption acceleration?

No, STM32H745ZGT6 does not include dedicated cryptographic accelerators (AES, PKA, HASH). That functionality is present in the STM32H753 variant. The ZGT6 focuses on analog integration, SMPS efficiency, and multimedia acceleration (JPEG, DMA2D, DCMI), making it ideal for real-time control and vision rather than secure communications.

Which package type does STM32H745ZGT6 use, and what are its key mechanical attributes?

STM32H745ZGT6 uses the TFBGA240+25 package: 240 signal balls plus 25 dedicated VSS/VDD balls in a 14 × 14 mm body with 0.8 mm ball pitch. It complies with ECOPACK2 environmental standards and supports extended temperature operation up to +125°C with appropriate derating.

How does the integrated SMPS regulator improve system-level power efficiency?

The SMPS step-down converter directly supplies VCORE at high efficiency (>85% at 100–500 mA), reducing heat generation versus LDO-only solutions. It supports dynamic voltage scaling across six ranges and integrates feedback compensation, eliminating external components required by discrete DC-DC converters - simplifying layout and improving reliability in space-constrained industrial designs.