STMicroelectronics NUCLEO-G070RB

Overview

NUCLEO-G070RB from STMicroelectronics is a 64-pin STM32 Nucleo-64 development board built around the STM32G070RBT6 microcontroller (Arm® Cortex®-M0+, 64 MHz, 128 KB Flash, 36 KB SRAM), featuring on-board ST-LINK/V2-1 debugger/programmer via USB Micro-B, ARDUINO® Uno V3 and ST morpho expansion headers, and a 32.768 kHz crystal oscillator for real-time clock applications.

For engineers reviewing the NUCLEO-G070RB datasheet, NUCLEO-G070RB pinout, NUCLEO-G070RB application, or NUCLEO-G070RB equivalent, this board supports rapid prototyping of low-power industrial control, sensor node firmware, and USB-enabled embedded peripherals - with direct flash programming, virtual COM port, and mass storage emulation enabled out-of-box.

Technical Context

The NUCLEO-G070RB implements the STM32G0 series architecture optimized for cost-sensitive, ultra-low-power applications. It integrates a single-core Arm Cortex-M0+ running at up to 64 MHz, supports multiple power modes (Run, Stop, Standby), and includes hardware accelerators for AES-128 encryption and CRC computation.

Board-level features include flexible power routing (ST-LINK VBUS or external 5 V/3.3 V), dual user push-buttons (USER and RESET), one shared user LED, and full I/O access via 64-pin LQFP-compatible morpho headers - enabling direct connection to shields, sensors, and custom carrier boards without external debug probes.

Key Specifications

Availability

NUCLEO-G070RB is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering prototypes, and USB-connected edge controllers requiring stable component supply, long-term toolchain compatibility, and seamless integration with STM32CubeIDE and HAL libraries.

Supply support for NUCLEO-G070RB 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 MEMS sensors for industrial, automotive, and consumer markets.

The STM32 Nucleo-64 platform - including NUCLEO-G070RB - was engineered to lower entry barriers for Cortex-M adoption, delivering production-ready evaluation hardware with standardized interfaces, open-source firmware stacks, and IDE-agnostic toolchain support.

FAQ

Does NUCLEO-G070RB support USB device functionality?

Yes - the onboard STM32G070RBT6 includes a full-speed USB 2.0 device interface, and the board routes USB D+/D− signals to the ST-LINK USB Micro-B connector. No external transceiver is required; enumeration as CDC ACM (Virtual COM port) and mass storage is supported natively via ST's firmware stack.

What is the maximum operating frequency of the target MCU?

The STM32G070RBT6 on NUCLEO-G070RB operates at up to 64 MHz using its internal 16 MHz RC oscillator multiplied by PLL. It does not include an external high-speed crystal (HSE), so system clock stability depends on internal oscillator calibration - sufficient for most timing-critical but non-precision applications like UART communication or PWM generation.

Can I use Arduino shields directly with this board?

Yes - the NUCLEO-G070RB provides a standard ARDUINO® Uno V3 header (14 digital I/O, 6 analog inputs, 6 PWM-capable pins) with 5 V logic level tolerance. All pins are mapped to STM32G070RBT6 peripherals and fully supported in STM32CubeMX and HAL drivers, enabling drop-in shield compatibility for prototyping without level-shifting.

Is external debugging hardware required?

No - the board integrates ST-LINK/V2-1 as a built-in debugger/programmer. It appears as three enumerated USB devices: a debug interface (SWD), a Virtual COM port, and a mass storage device for drag-and-drop firmware flashing. No separate probe, license, or additional hardware is needed for development or production programming.