STMicroelectronics STM32G071KBT3

Overview

STM32G071KBT3 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 - deployed in industrial sensor nodes, smart metering front-ends, and low-power HMI control units.

For engineers reviewing the STM32G071KBT3 datasheet, STM32G071KBT3 pinout, STM32G071KBT3 application, or STM32G071KBT3 equivalent, key selection criteria include its 64 MHz max CPU frequency, 1.7–3.6 V supply range, -40°C to 125°C extended temperature grade, and integrated USB-C PD controller for embedded power negotiation.

Technical Context

The STM32G071KBT3 integrates an Arm Cortex-M0+ core with MPU, supporting TrustZone-like memory protection via securable flash area and hardware parity on 32 KB of SRAM. Its clock system combines 4–48 MHz HSE, 32 kHz LSE with calibration, and ±1% internal 16 MHz RC with PLL - enabling precise timing for real-time motor control and RTC-backed data logging.

Peripheral interconnect uses a multi-layer AHB/APB bus matrix with 7-channel DMA and flexible remapping. Analog subsystem includes two rail-to-rail comparators, temperature sensor, VREFINT, and VBAT monitoring - all validated for operation across full industrial temperature range and low-power Stop/Standby modes.

Key Specifications

Pinout & Package

STM32G071KBT3 is housed in a 32-pin UFQFPN package (5 × 5 mm, 0.5 mm pitch) with exposed thermal pad, compliant with ECOPACK2 environmental standards. Pin functions support full peripheral remapping via GPIO alternate function registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G081KBT3, the G071KBT3 omits crypto acceleration but retains full USB-C PD functionality and higher RAM - making it optimal for cost-sensitive, power-negotiation-focused designs. Versus STM32F071CBT6, it delivers higher performance, smaller footprint, and modern USB-C compliance at comparable pricing.

Availability

STM32G071KBT3 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, USB-C charging adapters, and motor control HMI panels requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for STM32G071KBT3 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, ultra-low-power embedded applications demanding high integration, security features, and USB-C readiness - bridging the gap between legacy 8-bit MCUs and complex Cortex-M4 solutions.

FAQ

What is the maximum operating frequency and voltage range of the STM32G071KBT3?

The STM32G071KBT3 operates at up to 64 MHz with a supply voltage range of 1.7 V to 3.6 V. It supports dynamic voltage scaling and includes programmable brownout reset (BOR) and voltage detector (PVD) to ensure reliable operation across battery discharge curves and industrial power rails.

Does the STM32G071KBT3 support USB-C Power Delivery negotiation without external components?

Yes - the device integrates a complete USB Type-C Power Delivery controller, including physical layer (PHY), protocol engine, and policy manager. No external PD controller IC or dedicated PD firmware stack is required, reducing system complexity and PCB area for USB-C power source/sink designs.

How many analog-to-digital converter channels does the STM32G071KBT3 provide, and what is its conversion speed?

The STM32G071KBT3 features a single 12-bit ADC with up to 16 external input channels and a minimum conversion time of 0.4 µs. It supports hardware oversampling up to 16-bit resolution and includes built-in temperature sensor, VREFINT reference, and VBAT monitoring capability.

What low-power modes are available, and what is the typical current consumption in Shutdown mode?

The STM32G071KBT3 supports Sleep, Stop, Standby, and Shutdown modes. In Shutdown mode with RTC and backup registers active, typical current consumption is 0.32 µA at 25°C (VDD = 3.3 V), verified per DS12232 Rev 5 Section 5.3.31 - enabling decade-long battery operation in maintenance-free sensor deployments.