STMicroelectronics STM32F746ZGT6G

Overview

STM32F746ZGT6G from STMicroelectronics is a high-performance ARM® Cortex®-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz, featuring 1 MB Flash, 320 KB + 16 KB + 4 KB SRAM, USB OTG HS/FS, 10/100 Ethernet MAC, LCD-TFT controller, and dual CAN 2.0B interfaces - deployed in industrial HMI, medical imaging front-ends, and networked edge gateways.

For engineers reviewing the STM32F746ZGT6G datasheet, STM32F746ZGT6G pinout, STM32F746ZGT6G application, or STM32F746ZGT6G equivalent, key selection criteria include real-time performance (216 MHz + L1 cache), integrated connectivity (Ethernet + dual CAN + USB HS/FS), graphics acceleration (Chrom-ART DMA2D), and low-power operation across Sleep/Stop/Standby modes with VBAT support.

Technical Context

The device integrates an adaptive real-time accelerator (ART Accelerator™) and 4 KB instruction/data caches enabling zero-wait-state execution from Flash or external memory. Its AXI-AHB bus matrix supports concurrent high-bandwidth access to Flash, SRAM, and peripherals including FMC, Quad-SPI, and Ethernet MAC.

Clock architecture includes dual PLLs (main PLL, audio PLL, and SAI PLL), 4–26 MHz HSE oscillator, 32 kHz LSE for RTC, and factory-trimmed 16 MHz HSI (±1%). Power management features regulator ON/OFF control, POR/PDR/PVD/BOR, and dedicated USB power domain.

Key Specifications

Pinout & Package

LQFP144 package with exposed thermal pad; 144 leads, 0.5 mm pitch, 20 × 20 mm body size, JEDEC standard compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance MCU applications.

Compared with STM32F746ZGT6G, the STM32H743VIT6 offers higher compute throughput but adds design complexity with dual-core coordination and external Ethernet PHY, while the STM32F767ZIT6 trades display capability for cryptographic acceleration - making the ZGT6G optimal for cost-sensitive, graphics-intensive edge devices with integrated connectivity.

Availability

STM32F746ZGT6G is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and networked edge gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32F746ZGT6G 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, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32F7 series targets high-end embedded applications demanding real-time responsiveness, rich connectivity, and graphical user interfaces - optimized for deterministic execution, peripheral integration, and low-latency peripheral-to-memory transfers.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F746ZGT6G achieves 216 MHz via its ARM Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data caches. This configuration enables zero-wait-state execution from Flash memory, eliminating instruction fetch bottlenecks. The system clock derives from the main PLL fed by either the 4–26 MHz HSE crystal or 16 MHz HSI oscillator, with precise frequency tuning supported by programmable dividers and multipliers.

Does this MCU support hardware-accelerated graphics rendering?

Yes - it integrates the Chrom-ART Accelerator™ (DMA2D), a dedicated 2D graphics engine that performs bitmap blending, image format conversion (e.g., ARGB8888 to RGB565), and layer composition without CPU intervention. It directly interfaces with the LCD-TFT controller and supports alpha-blending, rotation, and memory-to-memory transfers, reducing CPU load by up to 70% in GUI-intensive applications.

What Ethernet capabilities does the STM32F746ZGT6G provide?

The device includes a full-featured 10/100 Ethernet MAC with dedicated DMA, MII/RMII physical layer interfaces, and IEEE 1588v2 hardware timestamping. It supports VLAN tagging, checksum offloading, and multicast filtering. No external PHY is required for RMII mode (using external 50 MHz clock), and the MAC operates independently of CPU load via descriptor-based DMA transfers.

How many ADC channels and what sampling rates are supported?

It integrates three independent 12-bit ADCs, each capable of 2.4 MSPS. In triple interleaved mode, they achieve 7.2 MSPS aggregate sampling across up to 24 channels. Each ADC supports hardware oversampling, analog watchdogs, and injected/conversion sequences - enabling simultaneous acquisition of motor phase currents, temperature sensors, and auxiliary voltages in real-time control systems.