STMicroelectronics STM32F746VGT6G

Overview

STM32F746VGT6G from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, 216 MHz max clock, 1 MB Flash, 320+16+4 KB RAM, 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 requiring deterministic real-time processing.

For engineers reviewing the STM32F746VGT6G datasheet, STM32F746VGT6G pinout, STM32F746VGT6G application, or STM32F746VGT6G equivalent, key selection criteria include LQFP100 package compatibility, 216 MHz Cortex-M7 performance with ART Accelerator™ and L1 cache, dual USB OTG (FS + HS), IEEE 1588v2 Ethernet support, and Chrom-ART Accelerator™ for hardware-accelerated GUI rendering.

Technical Context

The device integrates an Arm Cortex-M7 core with FPU, adaptive real-time accelerator (ART Accelerator™), and 4 KB instruction + 4 KB data L1 cache - enabling zero-wait-state execution from Flash and external memories. It supports dual-bank Flash for seamless firmware updates and includes a memory protection unit (MPU) for secure task isolation.

Its peripheral architecture features a flexible external memory controller (FMC) supporting SDRAM, NOR/NAND, and PSRAM; dual-mode Quad-SPI; parallel DCMI (54 MB/s); and dual SAI audio interfaces with internal audio PLL - all synchronized via a multi-layer AXI/AHB bus matrix and 16-stream DMA with FIFOs.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; 100-pin layout optimized for high-speed signal integrity and mixed-signal routing in space-constrained industrial and medical designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance Cortex-M7 MCU applications.

Compared with STM32F746VGT6G, the STM32F767VIT6 offers expanded memory and security peripherals for scalable firmware, while the STM32H743VIT6 delivers significantly higher compute throughput and display bandwidth - making both unsuitable as drop-in replacements but viable for platform evolution paths.

Availability

STM32F746VGT6G 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 STM32F746VGT6G 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 specializing in microcontrollers, power management, sensors, and automotive ICs - with over 40 years of innovation in embedded systems and industrial-grade silicon.

The STM32F7 series targets high-end real-time applications demanding both computational power and rich peripheral integration - designed specifically for advanced human-machine interfaces, industrial connectivity, and multimedia-rich edge devices.

FAQ

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

The STM32F746VGT6G achieves 216 MHz maximum CPU frequency using its Arm Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data L1 cache. This configuration eliminates wait states during Flash access, enabling deterministic execution. The clock tree supports multiple sources: HSE (4–26 MHz), HSI (16 MHz), or PLL-derived clocks, with voltage scaling (VOS0) required for full-speed operation.

Does this MCU support hardware-accelerated graphics rendering?

Yes - the integrated Chrom-ART Accelerator™ (DMA2D) provides hardware acceleration for 2D graphics operations including memory-to-memory copy, pixel format conversion, and alpha blending. It operates independently of the CPU, reducing GUI rendering latency and freeing the Cortex-M7 core for application logic - critical for smooth 60 fps XGA display updates.

What Ethernet capabilities does the STM32F746VGT6G provide?

The device integrates a 10/100 Ethernet MAC with dedicated DMA, supporting MII and RMII physical layer interfaces. It includes IEEE 1588v2 hardware timestamping for sub-microsecond precision, essential for time-sensitive networking in industrial automation. No external PHY is required for RMII; MII requires external PHY with 25 MHz reference clock.

How many USB interfaces does the STM32F746VGT6G support and what are their roles?

It supports two independent USB controllers: one full-speed (OTG_FS) and one high-speed/full-speed (OTG_HS). OTG_FS includes an on-chip PHY and supports device/host/OTG roles. OTG_HS includes a dedicated DMA channel, on-chip full-speed PHY, and ULPI interface for external high-speed PHY - enabling simultaneous USB device (e.g., HID) and host (e.g., mass storage) operation.