STMicroelectronics STM32G051C8U6TR

Overview

STM32G051C8U6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller in UFQFPN28 package, featuring 64 KB Flash, 18 KB SRAM, dual 12-bit DACs, 12-bit ADC with hardware oversampling, and operating voltage range of 1.7–3.6 V. It integrates two USARTs (one with ISO7816/LIN/IrDA), two I²C interfaces (Fast-mode Plus), two SPIs, RTC with alarm, and supports -40°C to 105°C industrial temperature range - deployed in smart sensor nodes and low-power industrial controllers.

For engineers reviewing the STM32G051C8U6TR datasheet, STM32G051C8U6TR pinout, STM32G051C8U6TR application, or STM32G051C8U6TR equivalent, key selection criteria include its 64 MHz CPU frequency, 28-pin UFQFPN footprint, dual DAC support for analog waveform generation, 14-timer suite including LPTIM for ultra-low-power wakeups, and integrated SWD debug interface for rapid firmware development.

Technical Context

The device implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU) and executes instructions at up to 64 MHz via internal 16 MHz RC oscillator with PLL multiplication or external 4–48 MHz crystal. Its clock tree includes dedicated 32 kHz LSE for RTC calibration and ±5% internal LSI for independent watchdog timing.

Analog subsystem integration includes two rail-to-rail 12-bit DACs with sample-and-hold, a 12-bit ADC supporting up to 16 external channels and 16-bit resolution via hardware oversampling, plus two programmable analog comparators with selectable inputs and outputs - all operating within the same 1.7–3.6 V supply domain as digital logic.

Key Specifications

Pinout & Package

STM32G051C8U6TR is housed in a 28-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN28) package measuring 4 × 4 mm with 0.5 mm pitch, compliant with ECOPACK2 environmental standards. The package supports reflow soldering and offers compact board space usage ideal for space-constrained IoT edge nodes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G051C8U6TR, STM32G071CBT6 adds USB and RAM headroom at the cost of size and power; STM32F072CBT6 trades modern low-power analog features for legacy compatibility and higher Flash - making the G051 optimal for compact, battery-aware designs needing dual DACs and sub-µA Stop mode.

Availability

STM32G051C8U6TR is available at Aetrix Electronics and suitable for smart sensor nodes, industrial motor controllers, energy meter interfaces, and secure IoT gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32G051C8U6TR 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 sensors, and automotive-grade components since 1987.

The STM32G0 series targets cost-sensitive, ultra-low-power embedded applications - delivering Cortex-M0+ performance with enhanced analog integration, security primitives, and industrial temperature qualification in compact packages.

FAQ

What is the maximum operating frequency of the STM32G051C8U6TR?

The STM32G051C8U6TR achieves a maximum CPU frequency of 64 MHz using its internal 16 MHz RC oscillator with PLL multiplication or an external 4–48 MHz crystal. This frequency is sustained across the full -40°C to 105°C operating temperature range and 1.7–3.6 V supply voltage, with timing verified per DS13303 Rev 4 Section 5.3.24.

Does STM32G051C8U6TR support hardware encryption or secure boot?

It does not include dedicated cryptographic accelerators (AES/RSA), but supports secure boot via readout protection (ROP) Levels 1 and 2, securable flash memory regions, and a 96-bit unique device identifier for key derivation. These features enable secure firmware loading and IP protection, as documented in Sections 3.3.1 and 8 of DS13303 Rev 4.

Can the STM32G051C8U6TR operate from a single 1.8 V supply?

Yes - the device operates across 1.7 V to 3.6 V, making 1.8 V fully supported. At this voltage, it delivers 64 MHz performance with adjusted current consumption (see Table 25, DS13303 Rev 4), and all I/Os remain functional with reduced drive strength, validated for industrial temperature ranges.

What debug interface does STM32G051C8U6TR use, and is JTAG available?

The device uses Serial Wire Debug (SWD) with SWDIO and SWCLK pins only - JTAG is not implemented. SWD provides full programming, debugging, and real-time tracing capability using just two pins, reducing PCB routing complexity versus 5-pin JTAG, as specified in Section 3.24.1 of the datasheet.