STM32G031J6M6 - 64MHz Cortex-M0+ MCU | STMicroelectronics
Teilenummer: STM32G031J6M6 ✓ AktivSTM32G031J6M6 Übersicht
A microcontroller is a programmable system-on-chip that integrates a processor core, nonvolatile program memory, volatile data memory, and peripherals into one package. In the STM32 hierarchy, the STM32G031 belongs to the STM32G0 mainstream family of 32-bit RISC microcontrollers. Its Arm Cortex-M0+ core combines a compact architecture with deterministic embedded-control capabilities while supporting a 64 MHz operating frequency.
The STM32G031J6M6 combines 32 KB of Flash for firmware and 8 KB of SRAM for working data. Two USART interfaces support serial communication, while the listed timers, ADC, and other communication interfaces reduce the need for external peripheral components. The low-voltage 1.7 V to 3.6 V operating range supports designs requiring low supply voltage, although each external circuit and connected peripheral must remain compatible with that range.
The STM32G031J6M6 uses an 8-pin SOIC package, providing a compact surface-mount format for embedded-control boards. STMicroelectronics states that the STM32G031x4, x6, and x8 devices use the Arm Cortex-M0+ core and can operate at up to 64 MHz. Its internal VCORE supply supports digital peripherals, SRAM, and Flash through an embedded linear voltage regulator; packages without a VREF+ pin internally connect VREF+ to VDD.
Typical uses include small motor-control modules, serial data acquisition units, compact sensor controllers, communication equipment, and low-power industrial or consumer automation nodes. The ADC supports analog measurements, the timers support periodic and timing functions, and the USART interfaces permit connection to sensors, displays, data modules, or host processors when their electrical protocols are compatible.
Designers should verify the exact SOIC-8 pin assignment and exposed functional options against the manufacturer datasheet before layout. Decoupling, grounding, signal routing, and the treatment of VREF+ depend on the selected pinout. Software migration and procurement decisions should also distinguish memory variants, package variants, and temperature-grade suffixes rather than treating every STM32G0 device as interchangeable.
This page consolidates the verified manufacturer specifications, distributor availability references, and cross-reference evidence for the STM32G031J6M6. It also separates confirmed same-package alternatives from candidates that require package or pinout verification, helping engineers make an informed drop-in decision without treating merely similar microcontrollers as exact replacements.
Drop-in-Alternativen für STM32G031J6M6 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
STM32G041J6M6
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
STM32G031J6M6 Grenzwerte & elektrische Eigenschaften
| Product Type | 32-bit ARM Cortex-M0+ Microcontroller |
| Processor Core | Arm Cortex-M0+ |
| Architecture | 32-bit RISC |
| Maximum CPU Frequency | 64 MHz |
| Flash Memory | 32 KB |
| Flash Organization | 32K x 8 bits |
| SRAM | 8 KB |
| SRAM Parity Check | Hardware parity check |
| Operating Voltage Range | 1.7 V to 3.6 V |
| USART Count | 2 |
| Peripheral Blocks | Timers, ADC, and communication interfaces |
| Gehäuse | 8-pin SOIC |
| Montageart | Surface Mount |
| VREF+ Connection on Packages Without VREF+ Pin | Internally connected to VDD |
| VCORE Supply | Internal supply for digital peripherals, SRAM, and Flash memory |
| VCORE Generation | Embedded linear voltage regulator |
STM32G031J6M6 internally connected to vdd Pinbelegungsleitfaden
Pinbelegung für STM32G031J6M6 (internally connected to vdd-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für STM32G031J6M6.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
STM32G031J6M6 ist geeignet für 6 Anwendungs: Compact Sensor Controller, Industrial Serial Gateway, Small Motor-Control Module, Battery-Powered IoT Node, Data-Acquisition Module, Consumer Automation Controller.
Compact Sensor Controller
The STM32G031J6M6 fits compact sensor-controller designs that require local signal conditioning, timed sampling, and serial reporting. Its ADC supports analog measurement, while the 64 MHz Cortex-M0+ core provides processing capacity for sensor compensation and control logic. The 1.7 V to 3.6 V operating range is useful for low-voltage systems, although engineers must confirm that the sensor, regulator, and interface levels match this range. With 8 KB of SRAM and 32 KB of Flash, the device can hold moderate firmware but requires careful memory budgeting for drivers, buffering, and protocol stacks.
Empfohlen
Industrial Serial Gateway
The STM32G031J6M6 can serve as the controller in a small industrial serial gateway because it provides two USART interfaces and a 64 MHz Arm Cortex-M0+ core in an 8-pin SOIC package. One USART can connect to a local sensor or downstream controller while the other handles host communication, subject to the exact peripheral allocation and pin assignment. Its 32 KB of Flash and 8 KB of SRAM are sufficient for compact protocol conversion, but industrial deployments must also evaluate supply interruptions, ESD protection, isolation, and operating-temperature requirements against the complete datasheet.
Empfohlen
Small Motor-Control Module
The STM32G031J6M6 is applicable to compact motor-control modules where timer outputs, a 64 MHz control core, and an 8-pin surface-mount package are valuable. Timers can generate deterministic control and timing functions, while the ADC can capture position, current, or sensor feedback where the selected application and pinout permit it. The key trade-off is package density: only eight pins are available, so motor-driver signals, feedback inputs, communications, and debug functions must share the available pins. Power-stage design, transient protection, and thermal analysis remain outside the MCU package and must be designed separately.
Empfohlen
Battery-Powered IoT Node
The STM32G031J6M6 can be used in a small battery-powered IoT node when its 1.7 V to 3.6 V operating range, 8 KB of SRAM, and low-pin-count SOIC package fit the board. Two USARTs and the ADC support local sensing and communication, while the 64 MHz Cortex-M0+ core can run lightweight control firmware. Average power is likely to depend heavily on the selected sleep modes, clock configuration, peripherals, and serial hardware because detailed current figures are absent from the supplied data. Designers should therefore verify low-power modes and regulator quiescent current in the manufacturer datasheet before estimating battery life.
Empfohlen
Data-Acquisition Module
The STM32G031J6M6 is suitable for a small data-acquisition module that combines analog measurements with local configuration or communication. The ADC provides the sensing interface, the 64 MHz Cortex-M0+ core can process buffered samples, and the two USARTs offer options for a host link or peripheral connection. Memory planning is important because 8 KB of SRAM limits simultaneous sample buffering, leaving only 32 KB of Flash for firmware. External memory may therefore be necessary for long acquisition records, and analog front-end design must address source impedance, sampling behavior, signal range, and grounding separately from the MCU.
Empfohlen
Consumer Automation Controller
The STM32G031J6M6 can support a compact consumer automation controller that coordinates switches, indicators, sensors, and a serial host interface. Its timer and communication resources allow a small embedded controller to replace separate discrete logic, while the 8-pin SOIC package can simplify assembly in space-constrained products. The limitations are equally important: eight pins restrict the number of simultaneously available I/O functions, and 32 KB of Flash may constrain feature-heavy firmware. Production designs should validate boot behavior, peripheral availability, brownout response, ESD requirements, and the exact environmental limits stated by STMicroelectronics.
Empfohlen
Technische Referenzdaten für STM32G031J6M6 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | STM32G041J6M6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 8-pin SOIC | 8-pin SOIC |
Wichtigste Unterscheidungsmerkmale
- Compact eight-pin implementation with substantial memory for its class (vs. STM32G041J6M6)
- Confirmed dual-USART resource set (vs. STM32G041J6M6)
- Documented low-voltage operation (vs. STM32G041J6M6)
Designhinweise
Use the official STM32G031J6 datasheet as the authoritative source for the 8-pin SOIC footprint and pin functions. Place the MCU close to its decoupling and clock circuitry, route sensitive analog and communication paths away from fast-switching nodes, and provide a continuous ground reference. Because packages without VREF+ connect that function internally to VDD, do not add an external VREF+ net or enable the internal reference buffer without reviewing the package-specific datasheet instructions.
Design the supply path for the documented 1.7 V to 3.6 V operating range and verify every external component's voltage rating. Place local bulk and high-frequency decoupling close to the appropriate supply and ground pins, and check the regulator's startup, current limit, and transient response against the MCU and attached peripherals. The supplied data does not include the numerical current consumption, so battery-life and thermal estimates must use the manufacturer electrical-characteristics tables rather than assumptions from the 64 MHz maximum clock.
Do not assume that similarly named STM32G0 devices are exact substitutes. The STM32G041J6M6 is an evidenced alternative candidate, but Flash, SRAM, ADC, USART, timer, clock, and pin-function differences must be checked against the target. A valid production drop-in also requires reviewing boot configuration, firmware device identifiers, peripheral addresses, interrupt vectors, and any change in low-power or debug behavior rather than relying only on package dimensions.
Keep the eight-pin package's communication and control routing direct while accounting for the limited pin budget. If the ADC is used, return analog and digital grounds through a deliberate layout strategy and minimize switching-current loops beneath the MCU. If an external clock or communication line is required, follow the manufacturer layout guidance for the relevant peripheral and preserve clean return paths. Exact pin selection must follow the package pinout rather than generic SOIC conventions.
Compliance-Informationen
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These values remain unknown rather than being inferred from the manufacturer identity.