STMicroelectronics STM32G051K8T6

Overview

STM32G051K8T6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller in LQFP32 package, operating up to 64 MHz with 64 KB Flash, 18 KB SRAM, and integrated peripherals including dual USARTs (one with LIN/IrDA), two I²C interfaces (Fast-mode Plus), two SPIs, 12-bit ADC (16-channel), dual 12-bit DACs, and calendar RTC - deployed in industrial sensor nodes requiring low-power connectivity and analog signal conditioning.

For engineers reviewing the STM32G051K8T6 datasheet, STM32G051K8T6 pinout, STM32G051K8T6 application, or STM32G051K8T6 equivalent, key selection criteria include its 64 MHz Cortex-M0+ core, 1.7–3.6 V supply range, -40°C to 125°C extended temperature grade, 44 fast I/Os (multiple 5 V-tolerant), and support for SWD debug - critical for cost-sensitive, space-constrained embedded control designs.

Technical Context

The device 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, 16 MHz HSI RC with PLL, and 32 kHz LSI RC (±5%). Its interconnect architecture routes peripherals-including timers, ADC, DAC, comparators, and communication interfaces-via a multi-layer AHB/APB bus matrix with DMA controller (7 channels) and DMAMUX for flexible peripheral-to-memory transfers.

Power management includes four low-power modes (Sleep, Stop, Standby, Shutdown), programmable Brownout Reset (BOR), voltage detector (PVD), and VBAT-supplied RTC/backup registers. Analog subsystem features rail-to-rail comparators with programmable inputs/outputs, 12-bit ADC with hardware oversampling up to 16-bit resolution, and two low-power DACs with sample-and-hold capability.

Key Specifications

Pinout & Package

LQFP32 (7 × 7 mm) package with exposed thermal pad; RoHS-compliant ECOPACK2; 32-pin quad flat pack with standard 0.8 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071K8T6, the G051K8T6 trades Flash/SRAM capacity and USB for lower BOM cost and identical low-power performance; versus STM32F072CBT6, it delivers superior active/standby current, richer analog features, and smaller footprint - making it optimal for compact, battery-aware edge nodes.

Availability

STM32G051K8T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance controllers, USB-C PD monitors, and medical wearable data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32G051K8T6 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 with Arm Cortex-M0+ cores, integrated analog peripherals, and streamlined development tools - optimized for rapid time-to-market in resource-constrained designs.

FAQ

What is the maximum operating frequency and supported voltage range for STM32G051K8T6?

The STM32G051K8T6 operates at up to 64 MHz using its Arm Cortex-M0+ core and supports a supply voltage range of 1.7 V to 3.6 V. This range enables direct compatibility with single-cell lithium batteries, 3.3 V logic systems, and energy-harvesting power supplies. The device maintains full peripheral functionality across the entire voltage and temperature range (-40°C to +125°C), with internal regulators and voltage detectors ensuring reliable operation during brownout conditions.

Does STM32G051K8T6 include hardware security features for firmware protection?

Yes, the STM32G051K8T6 integrates readout protection (ROP) with three configurable levels, a securable flash area for protected code execution, and a 96-bit unique device ID. It supports secure boot via option bytes and includes a dedicated hardware CRC calculation unit for firmware image integrity verification. These features enable tamper-resistant firmware deployment and prevent unauthorized access to sensitive application code stored in flash memory.

Can STM32G051K8T6 support simultaneous use of multiple communication interfaces like I²C, USART, and SPI?

Yes, the STM32G051K8T6 supports concurrent operation of all major communication peripherals: two I²C interfaces (one with SMBus/PMBus), two USARTs (one with LIN/IrDA/ISO7816), one LPUART, and two SPIs (32 Mbit/s). Pin remapping via alternate function registers allows flexible routing, and the 7-channel DMA controller with DMAMUX enables zero-CPU-overhead data transfers across multiple interfaces without conflict or timing degradation.

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

The STM32G051K8T6 offers Sleep, Stop, Standby, and Shutdown low-power modes. In Standby mode with RTC running and VBAT supplied, typical current consumption is 0.33 µA at 25°C (per DS13303 Rev 4, Table 30). This mode retains RTC timekeeping and backup register contents while disabling all clocks and most circuitry - enabling multi-year battery life in infrequently awakened sensor applications.