STM32G031C6U6 - 64MHz Cortex-M0+ MCU, 32KB Flash | STMicroelectronics
Référence : STM32G031C6U6 ✓ ActifSTM32G031C6U6 Présentation
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals into one device. The STM32G031C6U6 belongs to the STM32G0 mainstream family, where the Cortex-M0+ core forms the foundation of the Arm Cortex-M product category. This hierarchy places it within 32-bit RISC microcontrollers designed for control-oriented systems that require deterministic peripheral access, efficient code execution, and a broad set of integrated I/O resources.
Key device characteristics include a maximum operating frequency of 64 MHz, a 32 K x 8 Flash organization, and 8 KB of SRAM. Two USART channels support serial equipment and industrial communication, while the listed timers, ADC, and communication interfaces reduce the need for external peripheral ICs. The specified 1.7 V to 3.6 V operating range supports low-voltage embedded systems, although detailed current, temperature, and timing limits must be confirmed in the manufacturer datasheet.
The STM32G031C6U6 combines an Arm Cortex-M0+ RISC processor with embedded Flash and SRAM, an internal digital-core supply, and integrated analog and serial peripherals. The manufacturer datasheet notes that packages without a dedicated VREF+ pin connect VREF+ internally with VDD and require the internal voltage-reference buffer to remain disabled. Its 48-pin package combines a compact 7 x 7 mm footprint with enough pins for embedded control, sensor acquisition, and serial communication.
Typical applications include compact industrial controllers, sensor-interface modules, serial bridges, small motor-control systems, and low-power embedded instruments. Its two USART channels are useful for configuration consoles or external transceivers, while the ADC supports analog monitoring. The integrated communications and timer resources make the device suitable for designs where board area and external component count are important constraints.
Designers should verify all 48 package pins, alternate-function assignments, clock configuration, decoupling requirements, and exposed-pad connection against the package pinout in the manufacturer datasheet. Firmware, boot configuration, and peripheral assignments must also be reviewed before production release because alternate functions and device options can constrain otherwise interchangeable connections.
This page consolidates the verified manufacturer and distributor facts for STM32G031C6U6 and distinguishes documented characteristics from values that still require design review. It also compares same-package STM32G031 variants, summarizes procurement information as of 2026-10-30, and identifies the pinout and electrical details that engineers must confirm before treating a substitute as a drop-in replacement.
Alternatives de remplacement direct pour STM32G031C6U6 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM32G031C6U6 (même facteur de forme et même empreinte) — différant par Flash Memory, Package.
STM32G031C4U6
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →STM32G031C8U6
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →STM32G031C6U6 Valeurs maximales et caractéristiques électriques
| Product Type | 32-bit Arm Cortex-M0+ microcontroller |
| CPU Maximum Frequency | 64 MHz |
| Core Architecture | Arm Cortex-M0+ 32-bit RISC |
| Flash Memory | 32 KB |
| Flash Organization | 32 K x 8 |
| SRAM | 8 KB |
| USART Count | 2 |
| ADC | Present |
| Timers | Present |
| Communication Interfaces | Present |
| Tension d'alimentation de fonctionnement | 1.7 V to 3.6 V |
| Boîtier | 48-pin UFQFPN (7 x 7 mm) |
| Nombre de broches | 48 pins |
| Type de montage | Surface mount |
| Product Series | STM32G0 mainstream |
| Statut RoHS | unknown |
| REACH Status | unknown |
Guide de configuration des broches du STM32G031C6U6 48-pin ufqfpn (7 x 7 mm)
Configuration des broches du STM32G031C6U6 (boîtier 48-pin ufqfpn (7 x 7 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour STM32G031C6U6.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
STM32G031C6U6 convient pour 6 applications: Compact Industrial Control Module, Serial Data Acquisition Device, Low-Voltage Sensor Node, Motor and Valve Control Board, Embedded Measurement Instrument, Smart Connectivity Gateway.
Compact Industrial Control Module
The STM32G031C6U6 fits compact industrial control modules that combine digital control, analog monitoring, and serial diagnostics. Its 64 MHz Arm Cortex-M0+ core provides processing headroom, while the verified 32 KB Flash and 8 KB SRAM constrain the target firmware footprint to an appropriate embedded-control scale. Two USART channels can support a host interface and an external transceiver. The 1.7 V to 3.6 V operating range also fits low-voltage regulator architectures. Before layout release, engineers should confirm the exact GPIO allocation, ADC requirements, timer channels, and exposed-pad connection in the manufacturer datasheet.
Recommandé
Serial Data Acquisition Device
The STM32G031C6U6 is appropriate for a small serial data-acquisition device that gathers analog sensor data and forwards it over a wired link. Its integrated ADC allows analog measurements without a separate converter, and the two USART channels can support both sensor or host communication and configuration traffic. The 64 MHz Cortex-M0+ core can service the control and communication tasks, while 8 KB of SRAM accommodates modest buffers. The principal design trade-off is the limited 32 KB Flash, which requires disciplined firmware sizing and an appropriate boot and update strategy.
Recommandé
Low-Voltage Sensor Node
STM32G031C6U6 can serve as the controller in a low-voltage sensor node where an ADC, timers, and serial interfaces are needed without a larger mixed-signal device. Its specified 1.7 V to 3.6 V supply range supports direct integration with low-energy system rails, and the compact 48-pin UFQFPN package reduces PCB area. Current consumption in active and low-power modes must be measured because the supplied data does not quantify it. Firmware should also use the manufacturer-defined clock and sleep procedures so sensor timing remains predictable.
Recommandé
Motor and Valve Control Board
The STM32G031C6U6 is suited to small motor, valve, or actuator-control boards that need timers, digital I/O, and communications in one compact controller. The verified device information confirms the presence of timers, while the 64 MHz Cortex-M0+ core provides deterministic instruction throughput for real-time control tasks. Two USART channels can serve a configuration link and diagnostic output. Because the supplied data does not state timer-channel counts, PWM resolution, or advanced-control-module features, those functions must be mapped before motor-control firmware is committed.
Recommandé
Embedded Measurement Instrument
The STM32G031C6U6 fits compact embedded measurement instruments that combine an ADC, timers, and serial data output. The 32-bit Cortex-M0+ architecture supports efficient fixed-point and control processing, and the 48-pin package leaves access to numerous I/O functions without using a large leaded package. The two USART channels provide options for a local console and an external host or programming interface. ADC accuracy, reference behavior, timer resolution, and analog-layout requirements remain application-specific and should be taken directly from the manufacturer datasheet.
Recommandé
Smart Connectivity Gateway
STM32G031C6U6 can act as the low-power protocol-management element in a small connectivity gateway or serial bridge. Its two USART channels allow simultaneous support for local diagnostics and an upstream link, while the integrated ADC and timers support supervisory measurements. The Cortex-M0+ core at up to 64 MHz is suitable for lightweight protocol processing, and the 48-pin UFQFPN package supports compact board layouts. A production design should evaluate protocol stack memory use against 32 KB Flash and 8 KB SRAM, and should verify wake-up timing for low-duty-cycle operation.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32G031C6U6 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STM32G031C4U6 | STM32G031C8U6 |
|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-pin UFQFPN (7 x 7 mm) | 48-pin UFQFPN (7 x 7 mm) | 48-pin UFQFPN (7 x 7 mm) |
| CPU Core | Arm Cortex-M0+ 32-bit RISC | Arm Cortex-M0+ 32-bit RISC | Arm Cortex-M0+ 32-bit RISC |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz |
| Flash Memory | 32 KB | 16 KB (50% less) | 64 KB (100% more) |
Principaux différenciateurs
- Balanced Flash capacity for the selected STM32G031C6 memory configuration (vs STM32G031C8U6)
- Full 64 MHz Cortex-M0+ performance across the compared STM32G031C6 variants (vs STM32G031C4U6)
- Two integrated USART channels for compact serial-control designs (vs STM32G031C4U6)
Notes de conception
Route the 48-pin UFQFPN footprint exactly according to the STMicroelectronics package drawing and land-pattern guidance. The package is only 7 x 7 mm, so assembly tolerances, solder-mask definition, and the exposed-pad thermal-via strategy can materially affect yield. Do not infer exposed-pad connectivity from the package name alone: the manufacturer datasheet must be checked for whether the thermal pad is tied to VSS, and the selected PCB must provide the required copper area.
Design the supply rail for the verified 1.7 V to 3.6 V operating range, including regulator tolerance, startup sequencing, and the maximum transient conditions of the board. Place the MCU's required bypass capacitors directly beside their associated supply pins and keep the high-current return path compact. The supplied data does not include decoupling values or current-consumption figures, so those values must be taken from the manufacturer datasheet rather than estimated.
Do not treat a matching package as proof that every alternate function is interchangeable. Confirm pin multiplexing, oscillator options, boot configuration, debug access, and peripheral assignments for each production MPN. The manufacturer datasheet also states that packages without a VREF+ pin connect VREF+ internally with VDD and require the internal voltage-reference buffer to remain disabled. Incorrect reference-buffer or GPIO settings can prevent a board from starting as intended.
Keep analog and digital return currents separated as far as practical, particularly when the ADC is used for precision measurement. Provide a quiet reference path, minimize switching-current loops beneath the MCU, and follow the datasheet recommendations for analog and digital supply connections. Because ADC resolution, reference accuracy, and recommended impedances are not included in the verified search data, the final sensor front end should not be released until those values have been reviewed.
Informations de conformité
The supplied manufacturer and distributor snippets do not provide explicit compliance declarations. Compliance must be confirmed from the current STMicroelectronics product documentation and material-declaration records for the exact orderable MPN.
