STMicroelectronics STM32G071GBU6N

Overview

STM32G071GBU6N from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ 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, supports up to 60 GPIOs (including 5 V-tolerant), and integrates RTC with alarm and wakeup from Stop/Standby - deployed in industrial sensor nodes requiring low-power connectivity and analog signal conditioning.

For engineers reviewing the STM32G071GBU6N datasheet, STM32G071GBU6N pinout, STM32G071GBU6N application, or STM32G071GBU6N equivalent, key selection criteria include its 125°C extended temperature rating, dual DAC support for precision actuator control, USB PD controller integration for source/sink negotiation, and hardware CRC unit for firmware integrity verification.

Technical Context

The STM32G071GBU6N implements an Arm Cortex-M0+ core with MPU, executing at up to 64 MHz with 1.25 DMIPS/MHz efficiency. Its memory subsystem includes 128 KB of securable flash with readout protection and 36 KB SRAM (32 KB with hardware parity), enabling robust firmware execution and data integrity in safety-critical edge devices.

Clock architecture combines four oscillators: 4–48 MHz HSE, 32 kHz LSE with calibration, 16 MHz HSI (±1%), and 32 kHz LSI (±5%), feeding a flexible PLL for precise peripheral timing. Power management supports five low-power modes (Sleep, Stop0/1, Standby, Shutdown) with sub-μA retention current and fast wakeup via LPUART or RTC alarm.

Key Specifications

Pinout & Package

STM32G071GBU6N uses the UFQFPN48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are validated per ST's DS12232 Rev 5, Section 4 (Pinouts and Alternate Functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G0B1RET6, the STM32G071GBU6N trades crypto acceleration for lower cost and smaller die size while retaining full USB PD functionality; versus STM32F072CBT6, it delivers superior low-power performance, dual DACs, and extended temperature capability - making it optimal for cost-sensitive, thermally demanding USB-C edge devices.

Availability

STM32G071GBU6N is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-C power negotiation modules, smart actuator controllers, and energy metering front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32G071GBU6N 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 management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, low-power embedded applications requiring high integration - delivering Cortex-M0+ performance with USB PD, advanced analog peripherals, and extended temperature operation in compact packages.

FAQ

What is the maximum operating frequency and core type of the STM32G071GBU6N?

The STM32G071GBU6N features an Arm Cortex-M0+ core running at up to 64 MHz, delivering 1.25 DMIPS/MHz performance. It achieves this frequency using its internal 16 MHz HSI oscillator with PLL multiplication or external crystal sources (HSE up to 48 MHz). The core includes a Memory Protection Unit (MPU) and supports Thumb-2 instruction set for efficient code density.

Does the STM32G071GBU6N support hardware encryption or secure boot features?

Yes - the STM32G071GBU6N supports secure boot via Readout Protection (ROP) Levels 1 and 2, which lock debug access and prevent flash memory readout. It also provides a securable flash area for protected code storage. While it lacks dedicated AES/SHA accelerators (found in G0B1), its hardware CRC unit ensures firmware image integrity verification during boot and OTA updates.

How many analog-to-digital converter (ADC) channels does the STM32G071GBU6N support, and what is its resolution?

The device integrates a single 12-bit ADC with up to 16 external input channels and hardware oversampling capability that extends effective resolution to 16 bits. Conversion time is 0.4 µs per sample, and the ADC supports internal references (VREFINT, temperature sensor, VBAT monitoring) and programmable sampling windows - enabling high-accuracy current/voltage sensing in motor control or power metering.

What package type and pin count does the STM32G071GBU6N use, and is it RoHS compliant?

The STM32G071GBU6N uses the UFQFPN48 package: 48-pin, 7 × 7 mm body, 0.5 mm pitch, with exposed thermal pad. It is ECOPACK2-compliant (ST's RoHS and halogen-free standard), meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and qualified for reflow soldering per IPC/JEDEC J-STD-020. Full mechanical drawings are in DS12232 Section 6.7.