STMicroelectronics STM32G071K8T3

Overview

STM32G071K8T3 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller in UFQFPN32 package, operating up to 64 MHz with 64 KB Flash, 36 KB SRAM, and integrated USB Type-C Power Delivery controller. It features two 12-bit DACs, 12-bit ADC (0.4 µs conversion), four USARTs (including ISO7816/LIN support), and operates across 1.7–3.6 V supply for industrial sensor nodes and smart power peripherals.

For engineers reviewing the STM32G071K8T3 datasheet, STM32G071K8T3 pinout, STM32G071K8T3 application, or STM32G071K8T3 equivalent, key selection criteria include its USB-C PD controller integration, dual DAC capability for analog output generation, low-power timer support for battery-backed RTC operation, and 5 V-tolerant GPIOs enabling direct interfacing with legacy logic.

Technical Context

The STM32G071K8T3 implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU) and supports multiple clock sources: 4–48 MHz HSE crystal, 32 kHz LSE with calibration, and internal 16 MHz RC (±1 %) with PLL. Its interconnect architecture routes peripherals-including ADC, DAC, comparators, and communication interfaces-through a multi-layer AHB/APB bus matrix for deterministic latency.

Power management includes programmable Brownout Reset (BOR), voltage detector (PVD), and four low-power modes (Sleep, Stop, Standby, Shutdown) with VBAT backup for RTC and registers. The device integrates a 96-bit unique ID, CRC calculation unit, and serial wire debug (SWD) for secure development and traceability.

Key Specifications

Pinout & Package

STM32G071K8T3 is housed in a 5 mm × 5 mm UFQFPN32 (A0B8) package with 0.5 mm pitch, ECOPACK2-compliant, and optimized for space-constrained PCB layouts. Pin assignment follows ST's standard STM32G0 series mapping with dedicated VDD/VSS pairs, NRST, BOOT0, and SWDIO/SWCLK debug pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071K8U3, the K8T3 offers standard QFN reliability without wettable flanks; versus STM32G081K8T3, it trades Flash capacity and PD extensions for lower unit cost and identical qualification status in extended temperature grades.

Availability

STM32G071K8T3 is available at Aetrix Electronics and suitable for smart power adapters, industrial sensor nodes, motor control actuators, and medical diagnostic interfaces requiring stable component supply across automotive-grade temperature ranges and long lifecycle commitments.

Supply support for STM32G071K8T3 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, power-efficient embedded applications demanding rich analog integration, USB-C connectivity, and robust security-positioned as the entry-level Arm Cortex-M0+ platform for next-generation smart peripherals.

FAQ

What is the maximum operating frequency and supported voltage range for STM32G071K8T3?

The STM32G071K8T3 operates at up to 64 MHz using its internal 16 MHz RC oscillator with PLL or external crystal sources. Its supply voltage range is strictly 1.7 V to 3.6 V across all operating modes; operation outside this range may cause functional failure or permanent damage. The device includes built-in POR/PDR and programmable BOR to ensure reliable startup and brownout recovery within this window.

Does STM32G071K8T3 support hardware encryption or secure boot features?

Yes, the STM32G071K8T3 includes Readout Protection (ROP) Levels 1 and 2 to prevent unauthorized Flash memory access via debug interfaces, and a securable area that isolates critical code and keys from the main application. While it lacks dedicated AES or PKA accelerators, its MPU enforces memory access permissions, and the CRC unit supports firmware signature verification during boot-forming a foundational secure boot chain.

Can STM32G071K8T3 drive 5 V logic directly without level shifters?

Yes, up to 28 GPIO pins on the STM32G071K8T3 are explicitly rated as 5 V-tolerant when configured as inputs or open-drain outputs-even with VDD = 1.7 V. This allows direct connection to 5 V peripherals like legacy UART transceivers or I²C pull-ups without external level-shifting components, reducing BOM cost and board area in mixed-voltage systems.

What debug interface does STM32G071K8T3 use, and what tools are compatible?

The STM32G071K8T3 uses Serial Wire Debug (SWD) with two pins: SWDIO and SWCLK. It is fully supported by ST-LINK v2/v3 debug probes, SEGGER J-Link, and OpenOCD-based toolchains. No JTAG header is required; SWD enables full flash programming, real-time register inspection, and hardware breakpoints-compatible with STM32CubeIDE, Keil MDK, and IAR Embedded Workbench out of the box.