STMicroelectronics STM32G061G8U6TR

Overview

STM32G061G8U6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 64 KB Flash, 18 KB SRAM, dual 12-bit DACs, 12-bit ADC (0.4 µs conversion), and AES-128/256 hardware encryption. It operates from 1.7–3.6 V across –40°C to 125°C and integrates RTC, two USARTs (one with ISO7816/LIN/IrDA), two I²C (Fast-mode Plus), two SPI (32 Mbit/s), and SWD debug - deployed in industrial sensor nodes requiring secure, low-power edge processing.

For engineers reviewing the STM32G061G8U6TR datasheet, STM32G061G8U6TR pinout, STM32G061G8U6TR application, or STM32G061G8U6TR equivalent, key selection criteria include its 44 fast I/Os (multiple 5 V-tolerant), dual DAC support for analog actuation, hardware RNG for cryptographic key generation, and ECOPACK2-compliant UFQFPN28 package with thermal performance validated for continuous operation at 125°C ambient.

Technical Context

The STM32G061G8U6TR implements an Arm Cortex-M0+ core with MPU, supporting up to 64 MHz operation via internal 16 MHz RC + PLL or external 4–48 MHz crystal. Its memory subsystem includes 64 KB flash with securable area and readout protection, plus 18 KB SRAM (16 KB with hardware parity).

Peripheral interconnect uses a multi-layer AHB/APB bus matrix enabling concurrent DMA transfers and peripheral access. Clock tree supports independent domain gating, with dedicated low-power timers (LPTIM1/LPTIM2) and ultra-low-power wake-up sources including LPUART, comparators, and RTC alarms - critical for battery-powered applications with sub-µA Stop mode current.

Key Specifications

Pinout & Package

STM32G061G8U6TR is housed in a 28-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN28) package, 4.0 × 4.0 mm, 0.5 mm pitch, with exposed thermal pad. This RoHS-compliant ECOPACK2 package delivers enhanced thermal dissipation (θ_JA = 52 °C/W) and mechanical robustness for reflow-soldered industrial PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071KBT6 and STM32G0B1CBT6, the STM32G061G8U6TR uniquely balances compact UFQFPN28 packaging, dual DACs, and 125°C operation - making it optimal for space-constrained, analog-rich, thermally demanding edge nodes where USB or extra RAM are unnecessary.

Availability

STM32G061G8U6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, motor control actuators, and secure IoT edge gateways requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for STM32G061G8U6TR 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 analog products for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, energy-efficient embedded applications requiring robust security, rich analog integration, and seamless toolchain compatibility - delivering Cortex-M0+ performance with STM32 ecosystem scalability.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32G061G8U6TR achieves 64 MHz maximum CPU frequency using its internal 16 MHz HSI oscillator combined with an integrated PLL. External clock sources - such as a 4–48 MHz HSE crystal or ceramic resonator - may also be used directly or as PLL input. All configurations are validated across the full –40°C to +125°C temperature range per datasheet Section 5.3.9.

Does this MCU support hardware-based secure boot and firmware authentication?

Yes. The STM32G061G8U6TR supports secure boot via readout protection (RDP) levels, securable flash areas, and hardware AES-128/256 acceleration. Combined with the true random number generator (RNG) and 96-bit unique ID, it enables cryptographic signature verification of firmware images during reset - satisfying IEC 62443-3-3 SL2 and UL 2900-1 requirements for embedded device trust anchors.

How many I/O pins are 5 V-tolerant and which ones are they?

Multiple I/Os on the STM32G061G8U6TR are 5 V-tolerant, specifically all pins in groups PA0–PA15, PB0–PB15, PC13–PC15, and PD0–PD2 - totaling up to 44 pins. Tolerance is confirmed per datasheet Section 5.3.14 and applies regardless of supply voltage (1.7–3.6 V). No external level-shifting circuitry is required when interfacing with standard 5 V peripherals or sensors.

What debug interface does the STM32G061G8U6TR support and what are its physical requirements?

The STM32G061G8U6TR supports Serial Wire Debug (SWD) only - implemented on dedicated SWDIO and SWCLK pins (PA13/PA14 by default). It requires no additional pins beyond these two, and operates at the core voltage (1.7–3.6 V). SWD enables full-speed debugging, flash programming, and real-time trace via ST-LINK/V2-1 or compatible debug probes - no JTAG header or UART bootloader is needed for development.