STMicroelectronics STM32F746VGH6

Overview

STM32F746VGH6 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 and rich peripheral integration.

For engineers reviewing the STM32F746VGH6 datasheet, STM32F746VGH6 pinout, STM32F746VGH6 application, or STM32F746VGH6 equivalent, key selection criteria include its 216 MHz Cortex-M7 core with ART Accelerator™ and L1 cache, dual-mode Quad-SPI, Chrom-ART Accelerator™ for GUI rendering, IEEE 1588v2 Ethernet support, and 168 I/Os with 5 V tolerance - all in a UFBGA100 (8×8 mm) package.

Technical Context

The STM32F746VGH6 implements a tightly coupled Arm Cortex-M7 core with dual 4 KB L1 caches (instruction/data), adaptive real-time accelerator (ART) enabling zero-wait-state execution from Flash, and Memory Protection Unit (MPU) for secure task isolation. It integrates dual-bus AXI-AHB matrix architecture supporting concurrent high-bandwidth access to Flash, SRAM, and peripherals.

Its timing subsystem includes three independent PLLs (main PLL, audio PLL, SAI PLL), dedicated RTC with subsecond accuracy and hardware calendar, and low-power timer (LPTIM1) operable in Stop mode. The Ethernet MAC supports MII/RMII and IEEE 1588v2 hardware timestamping, while the LCD-TFT controller drives XGA (1024×768) panels with DMA2D-accelerated graphics composition.

Key Specifications

Pinout & Package

STM32F746VGH6 is housed in a UFBGA100 (8×8 mm, 0.65 mm pitch) package with exposed thermal pad. Pin functions are defined per ST's DS10916 Rev 5 datasheet Table 10 (STM32F745xx/746xx pin and ball definition), validated for this specific variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F746VGH6, STM32F767VIT6 trades LCD-TFT capability for cryptographic acceleration and doubled memory, while STM32H743VIT6 delivers 2.2× higher CPU frequency and Gigabit Ethernet but removes DCMI - making STM32F746VGH6 optimal for cost-sensitive, display-centric industrial edge nodes with balanced peripheral integration.

Availability

STM32F746VGH6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and smart energy gateways requiring stable component supply, long-term lifecycle assurance, and full traceability through ST's qualified manufacturing process.

Supply support for STM32F746VGH6 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 automotive-grade components since 1987.

The STM32F7 series targets high-end embedded applications demanding real-time determinism, rich multimedia support, and industrial connectivity - with the STM32F746VGH6 specifically optimized for display-driven edge devices with Ethernet and CAN fieldbus integration.

FAQ

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

The STM32F746VGH6 achieves 216 MHz maximum CPU frequency using its Arm Cortex-M7 core with adaptive real-time accelerator (ART Accelerator™) and dual 4 KB L1 caches. This configuration enables zero-wait-state execution from internal Flash memory, verified under 1.7–3.6 V supply and ambient temperatures up to 105°C per DS10916 Rev 5 Section 6.3.1.

Does STM32F746VGH6 support hardware-accelerated graphics rendering?

Yes - it integrates the Chrom-ART Accelerator™ (DMA2D), a dedicated 2D graphics engine supporting memory-to-memory copy, pixel format conversion, and alpha-blending operations. This offloads the CPU during GUI rendering on XGA-resolution TFT displays, reducing frame buffer update latency by up to 80% compared to software-only implementations.

What Ethernet physical layer options does STM32F746VGH6 support?

The part integrates a 10/100 Ethernet MAC with hardware IEEE 1588v2 timestamping and supports both MII and RMII physical layer interfaces. It requires an external PHY chip (e.g., LAN8742A) for physical layer signaling; RMII mode uses 9 pins and is preferred for space-constrained designs, while MII uses 16 pins and supports longer trace lengths.

Is the UFBGA100 package of STM32F746VGH6 compatible with reflow soldering processes?

Yes - the UFBGA100 package (8×8 mm, 0.65 mm pitch) is qualified for standard lead-free reflow soldering per JEDEC J-STD-020. Peak temperature must not exceed 260°C for ≤30 seconds, and moisture sensitivity level (MSL) is rated at Level 3 (168 hours floor life at 30°C/60% RH), requiring baking if exposed beyond that limit.