STMicroelectronics STM32G031K6T7TR

Overview

STM32G031K6T7TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 64 KB Flash, 8 KB SRAM, 1.7–3.6 V operation, and integrated peripherals including two USARTs, two I²C interfaces (one Fast-mode Plus), two SPIs, 12-bit ADC (0.4 µs conversion), and 11 timers - deployed in industrial sensor nodes, smart metering front-ends, and low-power IoT edge controllers.

For engineers reviewing the STM32G031K6T7TR datasheet, STM32G031K6T7TR pinout, STM32G031K6T7TR application, or STM32G031K6T7TR equivalent, key selection criteria include its 64 MHz max CPU frequency, 5 V-tolerant GPIOs, hardware parity on SRAM, securable flash area, and support for Stop/Standby/Shutdown low-power modes with RTC wakeup capability.

Technical Context

The device implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU), enabling secure partitioning of code and data regions. It integrates a 128 MHz-capable advanced-control timer (TIM1) for motor control, plus four general-purpose 16-bit timers and two low-power 16-bit timers (LPTIM1/LPTIM2) with sub-microsecond resolution in Stop mode.

Clock architecture includes dual oscillators: a 4–48 MHz HSE crystal input and a 32 kHz LSE for RTC calibration, alongside internal 16 MHz ±1% RC (HSI16) and 32 kHz ±5% RC (LSI), all configurable via RCC registers and supported by PLL for precise system clock derivation.

Key Specifications

Pinout & Package

STM32G031K6T7TR is housed in a 32-pin UFQFPN package (5 × 5 mm, 0.5 mm pitch), compliant with ECOPACK2 environmental standards and suitable for space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G031K6T7TR, STM32G030F6P6TR trades security and analog precision for lower cost, while STM32G041F8P6TR extends capability with USB and richer analog resources - both retain identical pinout and core architecture for drop-in migration paths.

Availability

STM32G031K6T7TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering front-ends, and medical wearable interfaces requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for STM32G031K6T7TR 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, MEMS, and automotive-grade components since 1987.

The STM32G0 series targets cost-sensitive, ultra-low-power embedded applications - delivering Cortex-M0+ performance with enhanced security, analog integration, and robust industrial qualification (−40°C to 125°C).

FAQ

What is the maximum operating temperature range for STM32G031K6T7TR?

The STM32G031K6T7TR is qualified for industrial operation from −40°C to 125°C ambient temperature. This extended range is validated per ST's specification DS12992 Rev 4, Section 5.3.1, and applies to all electrical characteristics including Flash endurance, ADC accuracy, and timer jitter - critical for under-hood automotive modules or enclosed industrial enclosures.

Does STM32G031K6T7TR support hardware encryption or secure boot?

Yes - it includes configurable Readout Protection (RDP) levels (0/1/2), securable flash area, and hardware CRC unit for firmware image verification. While it lacks dedicated AES engines, its MPU enables memory isolation for secure bootloader execution, and RDP Level 2 permanently disables debug access after programming - meeting IEC 62443-3-3 SL1 requirements for basic firmware confidentiality.

Can STM32G031K6T7TR drive 5 V logic directly?

Yes - multiple GPIOs (including PA0–PA7, PB0–PB1, and others listed in Table 12 of DS12992) are explicitly rated as 5 V-tolerant when VDD is ≥2.0 V. These pins accept 0–5.5 V inputs without damage and maintain correct logic levels, eliminating external level shifters when interfacing with legacy 5 V peripherals like RS-232 transceivers or discrete sensor outputs.

What debug interface does STM32G031K6T7TR use, and what pins are required?

It uses Serial Wire Debug (SWD) via dedicated PA13 (SWDIO) and PA14 (SWCLK) pins - requiring only two signal lines plus GND and VDD for power. No JTAG header is needed, reducing PCB footprint and simplifying production programming. SWD supports full breakpoint, register, and memory access at speeds up to 10 MHz, compatible with ST-LINK v2/v3 and OpenOCD toolchains.