STMicroelectronics NUCLEO-F746ZG

Overview

NUCLEO-F746ZG from STMicroelectronics is an STM32 Nucleo-144 development board built around the STM32F746ZGT6 microcontroller (ARM Cortex-M7, 216 MHz, 1 MB Flash, 320 KB RAM, LQFP144), featuring Ethernet compliance (IEEE-802.3-2002), USB OTG Full-Speed via Micro-AB connector, ST Zio expansion including ARDUINO® Uno V3 footprint, and integrated ST-LINK/V2-1 debugger/programmer.

For engineers reviewing the NUCLEO-F746ZG datasheet, NUCLEO-F746ZG pinout, NUCLEO-F746ZG application, or NUCLEO-F746ZG equivalent, this board serves as a production-ready prototyping platform for industrial IoT gateways, motor control HMI interfaces, and real-time embedded vision preprocessing-where dual-bank flash, hardware FPU, and deterministic Ethernet timing are critical.

Technical Context

The NUCLEO-F746ZG implements the STM32F746ZGT6 MCU with a 216 MHz Arm Cortex-M7 core, 1 MB dual-bank Flash enabling seamless firmware updates, and 320 KB SRAM with TCM for low-latency code execution. It integrates hardware accelerators including a JPEG codec and cryptographic processor (AES-128/256, SHA-1, SHA-256).

Power architecture includes flexible supply options: ST-LINK USB VBUS, external 7–12 V DC input, or USB Micro-AB host power. The board supports IEEE-802.3-2002-compliant Ethernet PHY interface and USB OTG FS with integrated transceiver-both directly routed to MCU peripherals without external level-shifting.

Key Specifications

Availability

NUCLEO-F746ZG is available at Aetrix Electronics and suitable for industrial IoT gateway development, motor control HMI prototyping, and real-time embedded vision preprocessing requiring stable component supply, long-term toolchain continuity, and production-grade evaluation hardware.

Supply support for NUCLEO-F746ZG 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, analog ICs, power devices, and sensors for industrial, automotive, and consumer markets.

The STM32 Nucleo series targets rapid embedded prototyping and production validation, delivering standardized form factor, unified software ecosystem (STM32Cube), and hardware abstraction across performance/power trade-offs.

FAQ

Does the NUCLEO-F746ZG support external SDRAM?

Yes - the STM32F746ZGT6 MCU on this board features a dedicated Flexible Memory Controller (FMC) with 16-bit data bus and address lines supporting up to 256 MB of external SDRAM. The board's schematic routes all required FMC signals to the ST Zio and morpho headers, enabling direct connection to compatible SDRAM modules.

Can the onboard ST-LINK/V2-1 program third-party STM32 boards?

Yes - the ST-LINK/V2-1 debugger on the NUCLEO-F746ZG can be used as a standalone programmer/debugger for other STM32 boards via SWD interface. Its firmware supports CMSIS-DAP, and it enumerates as a Virtual COM port, mass storage device, and debug adapter when connected to a host PC.

Is the Ethernet interface fully functional out-of-the-box?

Yes - the board includes a standard RJ45 connector with integrated magnetics and connects directly to the STM32F746ZGT6's MAC peripheral. The STM32Cube firmware package provides validated LwIP-based Ethernet examples, including DHCP, TCP server, and HTTP web server demos preloaded in Flash.

What IDEs are officially supported for NUCLEO-F746ZG development?

STMicroelectronics officially supports STM32CubeIDE (free, cross-platform), IAR Embedded Workbench® (Windows only), and Keil MDK-ARM (Windows only). All three integrate ST-LINK drivers, provide project templates for the NUCLEO-F746ZG, and support debugging, flash programming, and RTOS-aware tracing via SWV.