STMicroelectronics STM32G071CBT6

Overview

STM32G071CBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 128 KB Flash, 36 KB SRAM, and integrated USB Type-C Power Delivery controller. It operates from 1.7–3.6 V, supports -40°C to 125°C extended temperature range, and delivers up to 64 MHz CPU frequency. It targets embedded control in smart power adapters, industrial sensors, and battery-powered IoT edge nodes requiring secure firmware execution and low-power RTC wake-up.

For engineers reviewing the STM32G071CBT6 datasheet, STM32G071CBT6 pinout, STM32G071CBT6 application, or STM32G071CBT6 equivalent, key selection criteria include its dual 12-bit DACs with sample-and-hold, 14-timer suite (including two 128 MHz-capable advanced timers), 12-bit 0.4 µs ADC with hardware oversampling, and native USB Type-C PD controller - all in LQFP64 package with 52 GPIOs, 16 of which are 5 V-tolerant.

Technical Context

The STM32G071CBT6 integrates an Arm Cortex-M0+ core with Memory Protection Unit (MPU) and executes code from on-chip flash with securable area and readout protection. Its clock system combines four oscillators: 4–48 MHz HSE, 32 kHz LSE with calibration, 16 MHz HSI (±1%), and 32 kHz LSI (±5%), enabling precise timing for USB PD negotiation and RTC calendar functions.

Peripheral interconnect uses a multi-layer AHB/APB bus matrix supporting concurrent DMA transfers across 7-channel controller with flexible mapping. Analog subsystem includes two rail-to-rail comparators with programmable inputs/outputs, temperature sensor, VREFINT, and VBAT monitoring - all directly accessible via dedicated ADC channels and independent reference buffers.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad. Pin count: 64 leads, 52 user I/Os (including 16 5 V-tolerant), plus dedicated power, reset, debug, and oscillator pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071CBT6, STM32G081RBT6 adds security accelerators without sacrificing power or footprint, while STM32F072RBT6 reduces cost but removes USB-C PD functionality and modern low-power features like Shutdown mode and calibrated LSE.

Availability

STM32G071CBT6 is available at Aetrix Electronics and suitable for smart power adapters, industrial sensor nodes, motor-control actuators, and programmable logic relays requiring stable component supply across automotive-grade temperature ranges and long lifecycle commitments.

Supply support for STM32G071CBT6 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 products for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, ultra-low-power embedded applications demanding high integration, security, and USB-C readiness - positioning STM32G071CBT6 as a foundational MCU for next-generation power delivery and intelligent edge nodes.

FAQ

Does STM32G071CBT6 support USB-C Power Delivery sink and source roles?

Yes - its dedicated USB-C Power Delivery (UCPD) controller supports both sink and source roles per USB PD specification 3.0, including programmable power supply (PPS), SOP'/SOP" messaging, VCONN switching, and BMC physical layer handling. The UCPD peripheral operates independently of the CPU, enabling low-latency response during voltage negotiation.

What is the maximum ADC sampling rate with hardware oversampling enabled?

With 16x hardware oversampling, the 12-bit ADC achieves effective 16-bit resolution at up to 125 kSPS (8 µs conversion time). Without oversampling, it reaches 2.5 MSPS (0.4 µs). Oversampling is configurable per channel and supports automatic data right/left alignment and trigger synchronization with timers.

How many GPIOs support external interrupt capability?

All 52 user GPIOs (PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PF0–PF1) can be individually configured as external interrupt sources via the EXTI controller. Each pin maps to a dedicated EXTI line, supporting rising/falling/both-edge detection and event-only mode for ultra-low-power wake-up.

Is the LQFP64 package RoHS and REACH compliant?

Yes - the STM32G071CBT6 in LQFP64 package is ECOPACK2-compliant, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE, and uses halogen-free molding compound per IEC 61249-2-21.