STMicroelectronics STM32G071GBU6TR

Overview

STM32G071GBU6TR from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller with 128 KB Flash, 36 KB SRAM, dual 12-bit DACs, 12-bit ADC (0.4 µs conversion), and USB Type-C™ Power Delivery controller. It operates from 1.7–3.6 V across –40°C to 125°C and integrates 14 timers-including two 128 MHz-capable advanced timers-for motor control in compact industrial edge nodes.

For engineers reviewing the STM32G071GBU6TR datasheet, STM32G071GBU6TR pinout, STM32G071GBU6TR application, or STM32G071GBU6TR equivalent, key selection criteria include its 48 MHz max system clock, 60 fast I/Os (multiple 5 V-tolerant), hardware CRC unit, securable flash area, and support for Stop/Standby/Shutdown low-power modes with RTC wakeup.

Technical Context

The STM32G071GBU6TR implements a single-core Arm Cortex-M0+ CPU with MPU, executing at up to 64 MHz via internal 16 MHz RC + PLL or external 4–48 MHz crystal. Its memory subsystem includes 128 KB of flash with readout protection and securable area, plus 36 KB SRAM (32 KB with hardware parity).

Peripherals are interconnected via AHB/APB buses with DMAMUX routing; clock tree supports multiple sources-HSI16 (±1%), LSE (32.768 kHz), and LSI-with programmable PVD/BOR and four low-power modes (Sleep, Stop, Standby, Shutdown) enabling sub-μA operation with RTC and backup registers retained on VBAT.

Key Specifications

Pinout & Package

STM32G071GBU6TR uses the UFQFPN48 (7 × 7 mm, 0.5 mm pitch) package with 48-pin layout and exposed thermal pad. Pin functions include VDD/VSS power rails, NRST reset, BOOT0 mode select, SWDIO/SWCLK debug, and multiplexed peripheral signals across GPIO ports A–F.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32G071CBT6, the GBU6TR offers superior thermal dissipation in space-constrained designs; versus STM32G081RBT6, it trades hardware crypto for lower BOM cost and smaller die size where security is managed externally.

Availability

STM32G071GBU6TR is available at Aetrix Electronics and suitable for smart power adapters, industrial motor drives, wireless sensor nodes, and medical wearable monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32G071GBU6TR 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, energy-efficient applications demanding high integration and robust security primitives - optimized for smart home, industrial IoT, and portable power systems.

FAQ

What is the maximum operating frequency and supported clock sources?

The STM32G071GBU6TR achieves up to 64 MHz system clock using its internal 16 MHz RC oscillator with PLL, or external crystals ranging from 4–48 MHz (HSE) and 32.768 kHz (LSE). The HSI16 has ±1% accuracy over temperature and voltage, enabling reliable timing without external components in many applications.

Does this MCU support hardware encryption or secure boot?

No - the STM32G071GBU6TR does not include hardware AES or public-key accelerators. It supports readout protection (RDP) Level 1 and securable flash areas for basic IP protection, but lacks dedicated cryptographic engines found in the G081 or G4 series. Secure boot must be implemented in software using external trusted elements if required.

How many analog inputs does the integrated ADC support, and what is its effective resolution?

The 12-bit ADC supports up to 16 external channels plus internal temperature sensor and VREFINT. With hardware oversampling, it achieves up to 16-bit effective resolution at reduced sampling rate. Typical INL is ±1.5 LSB and DNL is ±0.8 LSB per DS12232 Rev 5, enabling precision measurement in motor current sensing or battery voltage monitoring.

What debug interfaces are available, and is SWD compatible with standard tools?

It supports Serial Wire Debug (SWD) via PA13 (SWDIO) and PA14 (SWCLK), fully compliant with ARM CoreSight standards. No JTAG pins are exposed in UFQFPN48; SWD works with ST-LINK v2/v3, Segger J-Link, and OpenOCD without adapters. Trace functionality is not supported on this variant.