STMicroelectronics STM32F746NGH6G

Overview

STM32F746NGH6G from STMicroelectronics is a high-performance ARM Cortex-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz. It integrates 1 MB Flash, 320 KB SRAM (including 64 KB data TCM + 16 KB instruction TCM), 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 HMI and embedded vision gateways.

For engineers reviewing the STM32F746NGH6G datasheet, STM32F746NGH6G pinout, STM32F746NGH6G application, or STM32F746NGH6G equivalent, key selection criteria include TCM RAM allocation for real-time control loops, dual-CAN + Ethernet coexistence, hardware-accelerated LCD rendering, and 216 MHz deterministic execution with ART Accelerator™ and L1 cache.

Technical Context

The STM32F746NGH6G implements a dual-bank Arm Cortex-M7 core with tightly coupled memory (TCM) architecture: 64 KB data TCM for time-critical variables and 16 KB instruction TCM for latency-sensitive routines, both accessible at zero wait states. Its ART Accelerator™ enables full-speed execution from Flash via 4 KB instruction and 4 KB data caches.

It features a multi-layer AXI/AHB bus matrix supporting concurrent access to Flash, SRAM, peripherals, and external memory (via FMC). The integrated LCD-TFT controller supports parallel 8080/6800 modes and XGA resolution, paired with DMA2D (Chrom-ART) for hardware-accelerated 2D graphics composition without CPU load.

Key Specifications

Pinout & Package

STM32F746NGH6G uses a TFBGA100 (8 × 8 mm, 0.8 mm pitch) package with 100 I/O balls. Ball pitch and layout comply with JEDEC MO-220, supporting fine-pitch PCB assembly and thermal dissipation in space-constrained industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIT6, STM32F746NGH6G offers integrated LCD-TFT and lower power at 216 MHz - ideal for display-centric edge devices. Against STM32F767ZIT6, it trades package size and Flash capacity for superior thermal performance and compactness in space-constrained industrial enclosures.

Availability

STM32F746NGH6G is available at Aetrix Electronics and suitable for industrial HMI, embedded vision gateways, medical diagnostic terminals, and smart energy gateways requiring stable component supply across extended product lifecycles.

Supply support for STM32F746NGH6G 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 real-time embedded applications demanding both computational throughput and rich peripheral integration - especially where graphics, connectivity, and deterministic control converge.

FAQ

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

The STM32F746NGH6G achieves 216 MHz via 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 embedded Flash memory and external memories, validated across industrial temperature ranges (-40°C to +105°C) per DS10916 Rev 5.

Does STM32F746NGH6G support hardware-accelerated graphics rendering?

Yes - it integrates a dedicated LCD-TFT controller supporting up to XGA resolution and the Chrom-ART Accelerator™ (DMA2D), which performs hardware-accelerated 2D graphics operations including bit-block transfer (blitting), color format conversion, and alpha blending - all without CPU involvement.

What are the key power management features for battery-backed applications?

It provides three low-power modes (Sleep, Stop, Standby) plus VBAT domain support: 4 KB backup SRAM, 32×32-bit backup registers, and RTC with subsecond accuracy remain active during main power loss. VBAT supply ensures continuous timekeeping and data retention down to 1.8 V.

How does the flexible memory controller (FMC) enhance system design flexibility?

The FMC supports NOR, NAND, PSRAM, and SDRAM with configurable timing parameters - enabling external frame buffers for displays, code execution from SDRAM, or storage expansion without additional controllers. It interfaces directly with the AXI bus matrix, ensuring deterministic access latency for time-critical peripherals.