STMicroelectronics STM32G041C6T6

Overview

STM32G041C6T6 from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller with 32 KB Flash, 8 KB SRAM, 1.7–3.6 V operation, -40°C to 85°C temperature range, and integrated AES-128/256 encryption - deployed in industrial sensor nodes requiring secure firmware updates and low-power wireless telemetry.

For engineers reviewing the STM32G041C6T6 datasheet, STM32G041C6T6 pinout, STM32G041C6T6 application, or STM32G041C6T6 equivalent, key selection criteria include its 12-bit ADC (0.4 µs conversion), dual I²C interfaces with Fast-mode Plus (1 Mbit/s), LPUART wakeup capability, and 44 fast I/Os with 5 V tolerance - critical for mixed-voltage industrial I/O consolidation and battery-backed RTC operation.

Technical Context

The STM32G041C6T6 integrates a single-core Arm Cortex-M0+ CPU running up to 64 MHz, coupled with a Memory Protection Unit (MPU) and securable flash area for code isolation. Its clock system combines internal RC oscillators (16 MHz ±1%, 32 kHz ±5%) with external crystal support (4–48 MHz HSE, 32.768 kHz LSE) and PLL for precise timing control in deterministic real-time tasks.

Peripheral interconnect uses a hierarchical AHB/APB bus matrix enabling concurrent DMA transfers and peripheral access. The 5-channel DMA controller supports flexible mapping to all major peripherals including ADC, USARTs, SPI, and timers - essential for zero-CPU-overhead data acquisition and communication stacks in resource-constrained edge devices.

Key Specifications

Pinout & Package

STM32G041C6T6 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK2 certified. Pin assignments support full peripheral remapping via GPIO alternate function registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G031F6P6, the STM32G041C6T6 adds essential security and ultra-low-power features at minimal BOM cost; versus STM32G071CBT6, it trades USB and extra RAM for lower quiescent current and smaller footprint - optimal for space-constrained, battery-operated edge nodes.

Availability

STM32G041C6T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, medical wearable hubs, and home automation gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32G041C6T6 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, ultra-low-power embedded applications - emphasizing security, energy efficiency, and simplified development for industrial IoT, consumer wearables, and smart infrastructure endpoints.

FAQ

What is the maximum operating frequency and voltage range of the STM32G041C6T6?

The STM32G041C6T6 operates at up to 64 MHz with a supply voltage range of 1.7 V to 3.6 V. Its internal 16 MHz RC oscillator achieves ±1% accuracy with PLL multiplication, and the voltage regulator supports dynamic scaling between Run, Low-power Run, and Sleep modes - validated across -40°C to +85°C ambient conditions per DS12993 Rev 4.

Does the STM32G041C6T6 support hardware encryption and secure boot?

Yes. It integrates a dedicated AES-128/256 hardware accelerator and true random-number generator (RNG), enabling fast TLS handshake execution and firmware signature verification. Readout protection (ROP) Levels 1 and 2 prevent unauthorized flash access, and the securable flash area isolates bootloader code from application updates - all documented in Section 3.3.1 of the datasheet.

How many analog inputs does the built-in ADC support, and what is its resolution?

The 12-bit ADC supports up to 16 external input channels (e.g., PA0–PA7, PB0–PB1, PC0–PC5) with 0.4 µs conversion time. It offers hardware oversampling up to 16× for effective 16-bit resolution, and includes internal references (VREFINT, temperature sensor, VBAT monitor) - specified in Table 59 and Section 3.14 of DS12993 Rev 4.

What low-power modes are available, and what is the lowest achievable current draw?

Four low-power modes are supported: Sleep, Stop, Standby, and Shutdown. In Stop 0 mode with RTC and 8 backup registers active, typical current consumption is 0.33 µA at 25°C (VDD = 3.3 V). This value scales predictably with temperature and supply voltage - detailed in Tables 28–31 and Section 3.7.4 of the datasheet.