STMicroelectronics STM32G061G8U6

Overview

STM32G061G8U6 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 with alarm, two USARTs (one ISO7816/LIN/IrDA-capable), and low-power UART - deployed in industrial sensor nodes requiring secure, battery-efficient edge processing.

For engineers reviewing the STM32G061G8U6 datasheet, STM32G061G8U6 pinout, STM32G061G8U6 application, or STM32G061G8U6 equivalent, key selection criteria include its 64 MHz max CPU frequency, 44 fast I/Os (multiple 5 V-tolerant), dual DACs for analog actuation, hardware RNG for cryptographic key generation, and support for Stop/Standby/Shutdown low-power modes with sub-µA retention current.

Technical Context

The STM32G061G8U6 implements an Arm Cortex-M0+ core with MPU, supporting TrustZone-like memory protection via securable flash area and readout protection levels. Its clock system combines 4–48 MHz HSE, 32 kHz LSE with calibration, 16 MHz HSI with PLL, and 32 kHz LSI - enabling precise timing control for real-time peripherals including two 128 MHz-capable advanced timers and calendar RTC.

Peripheral interconnect uses dedicated DMA request multiplexer (DMAMUX) and flexible GPIO remapping to route signals like SPI/I2S, USART synchronous mode, or comparator outputs to timers or ADC triggers - allowing deterministic latency-critical sequences such as motor phase current sampling synchronized to PWM edges.

Key Specifications

Pinout & Package

STM32G061G8U6 is housed in a 28-pin UFQFPN package (4 × 4 mm, 0.5 mm pitch), compliant with ECOPACK2 environmental standards. The package supports reflow soldering and offers thermal performance suitable for industrial ambient conditions up to 125°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071GBU6, the G061G8U6 trades flash/SRAM capacity and USB for lower BOM cost and identical low-power profile; versus STM32F072CBT6, it adds hardware crypto, higher clock speed, and modern low-power modes - making it superior for secure, battery-constrained edge nodes.

Availability

STM32G061G8U6 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 STM32G061G8U6 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, power-constrained edge applications - delivering Cortex-M0+ performance with hardware security, ultra-low-power modes, and integrated analog peripherals in compact packages.

FAQ

What is the maximum operating temperature range for STM32G061G8U6?

The STM32G061G8U6 is qualified for operation from –40°C to +125°C ambient temperature. This extended grade is validated per ST's industrial qualification standards and supports deployment in harsh environments such as motor drives, outdoor metering, and under-hood automotive modules where thermal stability is critical.

Does STM32G061G8U6 support USB connectivity?

No, the STM32G061G8U6 does not include a USB peripheral. USB functionality is available in the higher-density STM32G071 and STM32G0B1 variants. For USB-enabled designs, ST recommends migrating to STM32G071GBU6, which shares the same UFQFPN28 package and pinout compatibility while adding USB 2.0 Full-Speed support.

How is the hardware AES engine accessed in firmware?

The AES accelerator is memory-mapped at address 0x5006_0000 and controlled via the AES_CR, AES_DINR, AES_DOUTR, and AES_SR registers. ST provides HAL drivers (HAL_AES_Encrypt/HAL_AES_Decrypt) and low-level register access examples in STM32CubeG0. Key scheduling, block chaining (ECB/CBC), and key derivation are fully hardware-accelerated without CPU intervention.

Can STM32G061G8U6 run from internal RC oscillators without external crystals?

Yes - it can operate using the 16 MHz HSI oscillator with PLL (up to 64 MHz) or the 32 kHz LSI for RTC, eliminating need for external crystals in cost-sensitive or space-constrained designs. However, HSE (4–48 MHz) and LSE (32.768 kHz) are required for full accuracy in time-critical applications like LIN communication or precise RTC calibration.