STMicroelectronics STM32F746VGT6

Overview

STM32F746VGT6 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 - deployed in industrial HMI, medical imaging front-ends, and connected gateway edge nodes.

For engineers reviewing the STM32F746VGT6 datasheet, STM32F746VGT6 pinout, STM32F746VGT6 application, or STM32F746VGT6 equivalent, key selection criteria include LQFP100 package compatibility, 216 MHz real-time execution with ART Accelerator™ and L1 cache, dual CAN + Ethernet coexistence, Chrom-ART DMA2D graphics acceleration, and VBAT-backed RTC with subsecond accuracy.

Technical Context

The device integrates an Arm Cortex-M7 core with FPU, adaptive real-time accelerator (ART Accelerator™), and separate 4 KB instruction/data L1 caches enabling zero-wait-state execution from flash or external memory. It supports deterministic real-time operation via MPU, SysTick, and 18 timers - including two 32-bit general-purpose timers running at 216 MHz with quadrature encoder input.

Its connectivity stack includes dual USB controllers (FS OTG + HS/FS OTG with dedicated DMA), IEEE 1588v2-capable 10/100 Ethernet MAC (MII/RMII), two bxCAN 2.0B interfaces, SPDIFRX, SAI, and SDMMC - all accessible concurrently via AXI/AHB bus matrix and 16-stream DMA with FIFOs and burst support.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; 100-pin quad flat configuration supporting full peripheral mapping including dual USB PHYs, Ethernet MII/RMII, LCD parallel interface (8080/6800), DCMI, and FMC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F746VGT6, STM32H743VIT6 delivers higher compute throughput and dual-core flexibility at the cost of Ethernet integration and increased power; STM32F767VGT6 enhances security and memory but removes built-in Ethernet - making STM32F746VGT6 optimal for cost-sensitive, Ethernet-dependent edge nodes requiring balanced performance and peripheral richness.

Availability

STM32F746VGT6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and smart energy gateways requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F746VGT6 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 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 advanced graphics - specifically engineered for human-machine interfaces, industrial gateways, and medical edge devices with deterministic timing requirements.

FAQ

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

The STM32F746VGT6 achieves 216 MHz maximum CPU frequency using its Arm Cortex-M7 core with FPU, supported by the ART Accelerator™ and 4 KB instruction/data L1 caches. This configuration enables zero-wait-state execution from embedded flash memory or external memories, verified under 1.7–3.6 V supply and ambient temperatures per DS10916 Rev 5 Section 6.3.1.

Does this MCU include an integrated Ethernet MAC, and what PHY options are supported?

Yes, the STM32F746VGT6 integrates a full-featured 10/100 Ethernet MAC with hardware IEEE 1588v2 timestamping support. It supports both MII and RMII physical layer interfaces - RMII requires an external PHY (e.g., LAN8742A), while MII allows direct connection to compatible PHYs. No internal PHY is included; external PHY selection must match chosen interface mode and timing specs in Section 6.3.31.

How many ADC channels are available, and what is their maximum aggregate sampling rate?

The device features three independent 12-bit ADCs, each capable of 2.4 MSPS. In triple interleaved mode, they achieve a combined sampling rate of 7.2 MSPS across up to 24 input channels. This mode is confirmed in Section 3.39 and electrical specs Table 21, enabling high-fidelity acquisition for motor control or power analytics.

Is the LCD-TFT controller capable of driving XGA resolution displays, and what interface modes does it support?

Yes, the integrated LCD-TFT controller supports resolutions up to XGA (1024×768) and operates in 8080/6800 parallel interface modes. It includes dedicated timing generators, programmable pixel clock, and seamless integration with the Chrom-ART Accelerator™ for hardware-accelerated layer composition - detailed in Sections 3.10 and 3.11 of the datasheet.