STMicroelectronics NUCLEO-F070RB

Overview

NUCLEO-F070RB from STMicroelectronics is a 64-pin STM32 Nucleo-64 development board built around the STM32F070RBT6 microcontroller (Arm® Cortex®-M0, 48 MHz max, 128 KB Flash, 16 KB SRAM), featuring integrated ST-LINK/V2-1 debugger/programmer via USB Mini-B, ARDUINO® Uno V3 and ST morpho expansion headers, and flexible power options including ST-LINK USB VBUS or external sources.

For engineers reviewing the NUCLEO-F070RB datasheet, NUCLEO-F070RB pinout, NUCLEO-F070RB application, or NUCLEO-F070RB equivalent, this board serves as a rapid prototyping platform for low-cost, low-power embedded control applications requiring validated USB programming, GPIO expansion, real-time peripheral evaluation, and seamless integration with STM32CubeIDE and IAR Embedded Workbench®.

Technical Context

The NUCLEO-F070RB implements a complete, self-contained evaluation environment: its onboard ST-LINK/V2-1 provides mass storage, Virtual COM port, and SWD debug interfaces without external tools; the STM32F070RBT6 delivers deterministic real-time control with up to 48 MHz operation, 12-channel DMA, and hardware timers supporting PWM, quadrature decoding, and input capture.

Board-level features include a 32.768 kHz crystal for RTC calibration, dual push-buttons (user + reset), shared user LED with ARDUINO® header, and dual power domains-VBUS-sourced logic supply and optional external source-enabling validation of supply sequencing and brown-out behavior in resource-constrained designs.

Key Specifications

Availability

NUCLEO-F070RB is available at Aetrix Electronics and suitable for industrial sensor nodes, consumer appliance controllers, and educational embedded systems requiring stable component supply, consistent revision-controlled hardware, and long-term toolchain compatibility.

Supply support for NUCLEO-F070RB 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 management devices, and MEMS sensors for industrial, automotive, and consumer markets.

The STM32 Nucleo-64 series was developed to lower the barrier to entry for Arm-based embedded development, delivering standardized, open-hardware evaluation platforms with unified software ecosystems across the STM32 portfolio.

FAQ

Does NUCLEO-F070RB support USB device functionality?

No. The NUCLEO-F070RB integrates only ST-LINK/V2-1 for programming and debugging via USB Mini-B; it does not expose the STM32F070RBT6's USB Device interface to the user. The target MCU lacks USB PHY hardware, and no USB Type-C or user-facing USB connector is present on this board variant.

What is the maximum operating frequency of the onboard microcontroller?

The STM32F070RBT6 operates at up to 48 MHz using its internal 8 MHz RC oscillator multiplied by the PLL, or optionally from an external 48 MHz HSE. This frequency is fully supported by the board's clock tree and validated in the official UM1724 user manual.

Can the NUCLEO-F070RB be powered solely by the ST-LINK USB connection?

Yes. The board derives its 3.3 V logic supply directly from the ST-LINK USB VBUS line when no external power is applied. This allows full debugging, flashing, and peripheral operation-including GPIO toggling, ADC sampling, and UART communication-without auxiliary power.

Is the ARDUINO® connector electrically compatible with standard shields?

Yes. The ARDUINO® Uno V3 expansion connector implements the standard pinout (including 5 V tolerant digital I/O, analog inputs, SPI, I2C, and UART), enabling direct use of off-the-shelf Arduino shields-though users must verify voltage level compatibility, as the NUCLEO-F070RB operates at 3.3 V logic levels.