STMicroelectronics STM32G031K6T7

Overview

STM32G031K6T7 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 64 KB Flash, 8 KB SRAM, 12-bit ADC (0.4 µs conversion), dual USARTs (one supporting LIN/IrDA/ISO7816), and operating voltage range of 1.7–3.6 V. It integrates RTC with alarm, five low-power modes (Stop/Standby/Shutdown), and supports industrial motor control via 11 timers including one 128 MHz-capable advanced timer.

For engineers reviewing the STM32G031K6T7 datasheet, STM32G031K6T7 pinout, STM32G031K6T7 application, or STM32G031K6T7 equivalent, key selection criteria include Flash/SRAM size, 5 V-tolerant I/O count (up to 44), ADC resolution and sampling speed, low-power timer availability, and package compatibility with LQFP32 footprint.

Technical Context

The STM32G031K6T7 implements an Arm Cortex-M0+ core with MPU, running at up to 64 MHz, and features a memory protection unit for secure code execution. Its clock system includes dual oscillators (4–48 MHz HSE and 32 kHz LSE), plus internal RC sources (16 MHz ±1 %, 32 kHz ±5 %) with PLL support for precise frequency synthesis.

Peripheral interconnect uses a flexible AHB/APB matrix enabling concurrent DMA transfers across UART, SPI, I2C, and ADC. The 5-channel DMA controller supports configurable priority and peripheral-to-memory/memory-to-peripheral transfers, while the 12-bit ADC achieves 16-bit effective resolution via hardware oversampling - critical for sensor signal conditioning in battery-powered edge nodes.

Key Specifications

Pinout & Package

LQFP32 (7 × 7 mm, 0.8 mm pitch) package with exposed thermal pad; RoHS-compliant ECOPACK2 construction. Pin functions validated per STMicroelectronics DS12992 Rev 4, Section 4 (Pin assignment and description), Table 12.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G031K6T7, STM32G030K6T6 trades security and analog precision for lower cost, while LPC804M101JDH20 omits essential low-power and timing peripherals - making the G031K6T7 uniquely balanced for secure, battery-aware embedded control with high-fidelity sensing.

Availability

STM32G031K6T7 is available at Aetrix Electronics and suitable for smart metering, industrial motor control, wireless sensor nodes, and medical wearables requiring stable component supply across extended product lifecycles.

Supply support for STM32G031K6T7 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, power-constrained applications requiring robust security, rich analog integration, and seamless toolchain support - optimized for rapid development of certified IoT endpoints and industrial controllers.

FAQ

What is the maximum operating temperature range for the STM32G031K6T7?

The STM32G031K6T7 is qualified for industrial operation from –40°C to +85°C ambient temperature, with extended variants supporting up to +125°C. This rating is verified per JEDEC JESD47 and applies to all LQFP32 packages under specified voltage and load conditions.

Does the STM32G031K6T7 support USB device functionality?

No, the STM32G031K6T7 does not integrate a USB PHY or USB controller. It lacks dedicated USB pads, descriptors, and enumeration logic. For USB connectivity, external USB-to-UART bridges (e.g., CP2102N) or migration to STM32G071/081 series with integrated USB 2.0 FS is required.

Can the internal 16 MHz RC oscillator be used as the system clock source without calibration?

Yes, the HSI16 oscillator operates at 16 MHz ±1 % over temperature and voltage, meeting timing requirements for most peripherals including USART (with auto-baud detection) and SPI. Calibration is optional and improves accuracy to ±0.5 % but is not mandatory for functional operation.

How many I/O pins support external interrupt capability?

All 30 general-purpose I/O pins (PA0–PA15, PB0–PB1, PF0–PF1) are mappable to external interrupt vectors via the EXTI controller. Each pin can trigger rising/falling/both-edge interrupts independently, enabling responsive button, sensor, or communication event handling without polling.