STMicroelectronics STM32F746NGH7

Overview

STM32F746NGH7 from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, delivering 462 DMIPS at 216 MHz, featuring 1 MB Flash, 320+16+4 KB SRAM (including TCM and backup RAM), dual USB OTG (FS/HS), 10/100 Ethernet MAC, LCD-TFT controller up to XGA, and Chrom-ART Accelerator™ for graphics acceleration - deployed in industrial HMIs, medical imaging front-ends, and networked edge gateways.

For engineers reviewing the STM32F746NGH7 datasheet, STM32F746NGH7 pinout, STM32F746NGH7 application, or STM32F746NGH7 equivalent, key selection criteria include its dual-mode Quad-SPI interface, 3×12-bit 2.4 MSPS ADCs with triple interleaving, 2×12-bit DACs, 18 timers (including low-power 16-bit timer in Stop mode), and IEEE 1588v2 hardware support in the Ethernet MAC.

Technical Context

The STM32F746NGH7 implements an Arm Cortex-M7 core with L1 instruction/data caches (4 KB each), ART Accelerator™ enabling zero-wait-state execution from Flash or external memory, and MPU for memory protection. It integrates dual USB controllers (OTG_FS with on-chip PHY and OTG_HS with dedicated DMA + ULPI), plus a full-featured 10/100 Ethernet MAC supporting MII/RMII and IEEE 1588v2 timestamping.

Its peripheral subsystem includes a parallel 8–14-bit DCMI camera interface (54 MB/s), LCD-TFT controller with DMA2D Chrom-ART Accelerator™, SPDIFRX, HDMI-CEC, two CAN 2.0B interfaces, and dual SAIs for audio processing - all synchronized via multiple PLLs including dedicated audio PLLs (PLLI2S, PLLSAI).

Key Specifications

Pinout & Package

STM32F746NGH7 is housed in a TFBGA100 package (8 × 8 mm, 0.8 mm pitch), with 100 I/O balls arranged in a 10×10 grid. The device supports up to 168 I/O ports (164 fast I/Os up to 108 MHz, 166 5 V-tolerant pins), and features dedicated ball assignments for dual USB PHYs, Ethernet MAC (RMII/MII), DCMI, LTDC, and Quad-SPI.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F746NGH7, the STM32H743VIT6 offers higher compute density but removes integrated Ethernet, while the STM32F767ZIT6 provides identical feature parity in a larger, through-hole-compatible package - making the NGH7 optimal for compact, Ethernet-connected embedded systems requiring balanced performance and integration.

Availability

STM32F746NGH7 is available at Aetrix Electronics and suitable for industrial HMIs, medical imaging front-ends, and smart energy gateways requiring stable component supply, long-term lifecycle assurance, and qualified sourcing for production ramp.

Supply support for STM32F746NGH7 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 automotive-grade components since 1987.

The STM32F7 series targets high-end embedded applications demanding real-time responsiveness, rich multimedia capability, and connectivity - specifically engineered for human-machine interfaces, industrial automation, and medical devices where graphics, networking, and deterministic control converge.

FAQ

What is the maximum operating frequency and performance rating of the STM32F746NGH7?

The STM32F746NGH7 operates at up to 216 MHz and delivers 462 DMIPS (Dhrystone 2.1), measured at 2.14 DMIPS/MHz. This performance is sustained via the ART Accelerator™ and 4 KB instruction/data L1 caches, enabling zero-wait-state execution from Flash or external memory - verified in ST's DS10916 Rev 5 datasheet Section 3.1.

Does the STM32F746NGH7 support hardware-accelerated graphics rendering?

Yes - it integrates the Chrom-ART Accelerator™ (DMA2D), a dedicated 2D graphics accelerator supporting memory-to-memory copy, pixel format conversion, and alpha blending. This offloads the CPU during UI rendering, enabling smooth animation on XGA-resolution displays without consuming Cortex-M7 cycles - detailed in Section 3.11 of the official datasheet.

What Ethernet capabilities does the STM32F746NGH7 provide?

The device includes a 10/100 Ethernet MAC with hardware support for IEEE 1588v2 precision time protocol, including full timestamping of ingress/egress PTP packets. It supports both MII and RMII physical interfaces and uses a dedicated DMA controller - confirmed in Section 3.31 and Table 2 of DS10916 Rev 5.

How many ADC channels and what sampling speed does the STM32F746NGH7 support?

It integrates three independent 12-bit ADCs, supporting up to 24 total channels. Each ADC achieves 2.4 MSPS individually; in triple interleaved mode, aggregate throughput reaches 7.2 MSPS - specified in Section 3.39 and Table 2 of the datasheet, validated under VDDA = 3.3 V and fADC = 36 MHz.