STMicroelectronics NUCLEO-G474RE

Overview

NUCLEO-G474RE from STMicroelectronics is a 64-pin Nucleo-64 development board built around the STM32G474RET6 Arm® Cortex®-M4 microcontroller (170 MHz, 512 KB Flash, 128 KB SRAM) in LQFP64 package. It integrates STLINK-V3E debugger/programmer, USB Micro-AB and MIPI® debug connectors, ARDUINO® Uno V3 and ST morpho expansion headers, and supports standalone demonstration via preloaded firmware.

For engineers reviewing the NUCLEO-G474RE datasheet, NUCLEO-G474RE pinout, NUCLEO-G474RE application, or NUCLEO-G474RE equivalent, this board serves as a production-ready prototyping platform for motor control, digital power conversion, and sensor fusion applications requiring high-resolution analog peripherals and real-time computation.

Technical Context

The board implements a dual-power-domain architecture: STLINK-V3E (U5, STM32F723IEK6) handles host-side USB enumeration, SWD debugging, and virtual COM port (VCP) functions, while the target STM32G474RET6 executes user firmware with full access to its advanced analog features - including three 12-bit ADCs, two high-speed comparators, and an integrated op-amp-based programmable gain amplifier (PGA).

Power management includes five selectable sources (USB VBUS, VIN 7–12 V, E5V 5 V, USB charger, or external 3.3 V), with automatic current limiting (500 mA max via STMPS2151STR) and overcurrent detection signaled by red LED LD4. Jumper JP5 configures source selection; JP1 isolates STLINK-V3E reset; JP7 sets BOOT0 for system memory boot mode.

Key Specifications

Availability

NUCLEO-G474RE is available at Aetrix Electronics and suitable for industrial motor control prototyping, digital power supply design, and embedded sensor fusion development requiring stable component supply, rapid evaluation cycles, and seamless IDE integration.

Supply support for NUCLEO-G474RE 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 devices, sensors, and analog ICs for industrial, automotive, and consumer applications.

The NUCLEO-G474RE belongs to ST's Nucleo-64 open-development platform family, engineered to accelerate time-to-proof-of-concept for STM32G4-series applications demanding high-precision analog signal processing, real-time control, and low-power operation.

FAQ

Does NUCLEO-G474RE require an external debugger?

No. The board integrates STLINK-V3E, which provides full SWD debugging, virtual COM port, and mass storage programming without external tools. It enumerates automatically on Windows 10+, macOS, and Linux when connected via USB Micro-AB cable. Drivers are optional for Windows 10 but required for older Windows versions.

Can NUCLEO-G474RE be powered from an external 3.3 V source?

Yes - connect 3.3 V to CN6 pin 4 or CN7 pin 16. However, doing so disables STLINK-V3E functionality because the debugger requires 5 V. Only the target STM32G474RET6 operates, enabling firmware execution but no programming or debugging via USB.

What is the purpose of JP5 jumper on NUCLEO-G474RE?

JP5 selects the primary 5 V power source: pins 1–2 enables USB VBUS (default), pins 3–4 selects VIN-derived 5 V, pins 5–6 selects external 5 V (E5V), and pins 7–8 selects USB charger input. This determines which regulator (U4 or U11) supplies the 5 V rail and whether STLINK-V3E powers up during enumeration.

Is NUCLEO-G474RE compatible with STM32CubeIDE and third-party toolchains?

Yes. It is fully supported by STM32CubeIDE, IAR Embedded Workbench®, and Keil MDK-ARM. The board appears as a standard CMSIS-DAP-compliant device, and STM32CubeG4 firmware packages include ready-to-run examples for all on-board peripherals, including ADCs, timers, op-amps, and communication interfaces.