STMicroelectronics

STM32G031J6M6 - 64MHz Cortex-M0+ MCU | STMicroelectronics

MPN: STM32G031J6M6 ✓ نشط
1.7 V to 3.6 V Vdss 8-pin SOIC Package 64 MHz Speed 32 KB Memory
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STM32G031J6M6 نظرة عامة

The STMicroelectronics STM32G031J6M6 is a 32-bit Arm Cortex-M0+ microcontroller operating up to 64 MHz, with 32 KB of embedded Flash memory, 8 KB of SRAM, two USART peripherals, timers, ADC, and communication interfaces in an 8-pin SOIC package. The operating supply range is 1.7 V to 3.6 V, making it suitable for compact embedded systems powered from low-voltage rails.

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.

بدائل مباشرة لـ STM32G031J6M6 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.

STM32G041J6M6

✅ بديل مباشر
📦 8-pin SOIC
Related STM32G0-family device with a different G041 configuration; Flash, SRAM, and peripheral differences are , while the verified package remains 8-pin SOIC

📋 بديل مرجعي (غير موجود في الكتالوج)

STM32G031J6M6 الحدود القصوى والخصائص الكهربائية

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
العلبة 8-pin SOIC
نوع التركيب 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

دليل تكوين أطراف STM32G031J6M6 internally connected to vdd

تكوين الأطراف لـ STM32G031J6M6 (حزمة internally connected to vdd). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.

مخطط توزيع أطراف حزمة internally connected to vdd لـ STM32G031J6M6

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التطبيقات النموذجية

STM32G031J6M6 مناسب لـ 6 التطبيقs: 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.

🏭

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.

⚡

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.

📱

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.

📺

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.

🔧

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.

What are the key specifications of STM32G031J6M6 that engineers should know?
The STM32G031J6M6 is an 8-pin, 32-bit Arm Cortex-M0+ microcontroller rated up to 64 MHz, with 32 KB of Flash and 8 KB of SRAM. According to the STMicroelectronics STM32G031J6 datasheet, its operating supply range is 1.7 V to 3.6 V. Verified distributor listings also identify two USART interfaces, timers, an ADC, and communication interfaces. These parameters place the device in the STM32G0 mainstream family and make it suitable for compact embedded-control and serial-communication designs.
Where can I download the STM32G031J6M6 datasheet PDF?
The official STM32G031J6M6 datasheet PDF is available from STMicroelectronics at https://www.st.com/resource/en/datasheet/stm32g031j6.pdf. According to the manufacturer datasheet, the document covers STM32G031x4, x6, and x8 devices, including the STM32G031J6M6 orderable variant. The product page at https://www.st.com/en/microcontrollers-microprocessors/stm32g031j6.html provides the corresponding family overview and supporting documentation links.
What is the operating voltage of STM32G031J6M6?
The STM32G031J6M6 operates from 1.7 V to 3.6 V. According to the STMicroelectronics STM32G031J6 datasheet, VCORE is generated internally by an embedded linear voltage regulator for digital peripherals, SRAM, and Flash memory. The datasheet also notes that on packages without a VREF+ pin, VREF+ is internally connected to VDD and the internal voltage-reference buffer must remain disabled.
How much Flash and RAM does STM32G031J6M6 have?
The STM32G031J6M6 provides 32 KB of Flash and 8 KB of SRAM. DigiKey describes the Flash as 32K x 8 bits, while Mouser identifies the device as having 32 KB of Flash and 8 KB of RAM. The chipdig datasheet preview also states that the SRAM includes hardware parity checking. These capacities position the MCU for embedded firmware requiring a useful mix of program storage and working memory.
What processor and maximum frequency does STM32G031J6M6 use?
The STM32G031J6M6 uses a 32-bit Arm Cortex-M0+ RISC core and can operate at up to 64 MHz. This performance statement appears in STMicroelectronics' STM32G031x4/x6/x8 family description and is repeated in DigiKey's product listing. The Cortex-M0+ core provides a compact embedded-processing platform for control, communication, and low-cost real-time applications.
Where can I find the STM32G031J6M6 pinout?
The STM32G031J6M6 pinout is documented in the official STM32G031J6 datasheet at https://www.st.com/resource/en/datasheet/stm32g031j6.pdf. The part is supplied in an 8-pin SOIC package, and the datasheet's package pinout and pin-description sections should be used for layout. A machine-readable pin table is not included in the supplied search data, so this page does not infer individual pin assignments.
What can replace the STM32G031J6M6?
The strongest same-package replacement identified in the supplied cross-reference evidence is the STMicroelectronics STM32G041J6M6, listed as an equivalent candidate. However, the available evidence does not establish identical Flash capacity, peripheral configuration, or every electrical limit for that candidate. Before using it as a drop-in replacement, engineers should compare the complete STMicroelectronics datasheets, pin assignments, clock tree, memory, ADC, USART, timers, and firmware-device identifiers.
Is STM32G041J6M6 the same as STM32G031J6M6?
The STM32G041J6M6 is a closely related STM32G0-family alternative, but the supplied evidence does not prove that it is identical to the STM32G031J6M6. FindMyChip lists it among known equivalents for STM32G031J6M6TR, while other search evidence identifies related STM32G031 variants. Because the G041 designation can represent a different device configuration, engineers should verify package, memory, peripherals, and pin behavior against both manufacturer datasheets before substitution.
What is the best STMicroelectronics equivalent for STM32G031J6M6?
The best-supported STMicroelectronics equivalent in the supplied web data is the STM32G041J6M6 because it is explicitly included in an equivalents list for the closely related STM32G031J6M6TR. Its qualification as a true drop-in part still requires package and pin-level review because the supplied snippets do not provide a complete side-by-side parameter table. Firmware, peripheral, and memory requirements should be treated as design gates rather than inferred from the family name.
STM32G031J6M6 vs STM32F031K4U6: which is better for a small embedded controller?
The STM32G031J6M6 is the stronger choice when the design specifically needs its 64 MHz Cortex-M0+ performance, 32 KB of Flash, 8 KB of SRAM, and eight-pin SOIC format. The Octopart comparison identifies both as active 32-bit STMicroelectronics microcontrollers, but the supplied data does not provide a complete pin-compatible parameter matrix for the STM32F031K4U6. Package size, pinout, memory, peripherals, and software support must therefore be compared before selection.
When should I choose STM32G031J6M6 over a larger STM32G0 microcontroller?
Choose the STM32G031J6M6 when an eight-pin SOIC design needs 32 KB of Flash, 8 KB of SRAM, a 64 MHz Cortex-M0+ core, two USARTs, and an operating range of 1.7 V to 3.6 V. Its compact package can reduce board space, but the limited pin count and memory may make it unsuitable for designs requiring many I/O pins, larger code images, or extensive buffers. Larger STM32G0 members should be selected when those constraints dominate.
Is STM32G031J6M6 suitable for a compact sensor controller?
The STM32G031J6M6 is suitable for a compact sensor controller when the required peripherals fit its eight-pin SOIC and 8 KB of SRAM. Its ADC, two USARTs, timers, 64 MHz Cortex-M0+ core, and 1.7 V to 3.6 V operating range support common low-voltage embedded designs. The engineer must still budget ADC sampling time, serial-driver memory, sensor supply requirements, and pin contention against the limited package resources.
How do I verify power and thermal requirements for STM32G031J6M6?
The STM32G031J6M6 must be evaluated within its documented 1.7 V to 3.6 V supply range and against the power and thermal limits in the STMicroelectronics datasheet. The supplied search results do not provide maximum current, junction temperature, thermal resistance, or package dissipation data, so those values cannot be calculated reliably here. Designers should account for total MCU current, GPIO loading, analog-converter activity, ambient temperature, PCB copper, and nearby heat sources using the manufacturer limits.
Where to buy STM32G031J6M6 online?
The STM32G031J6M6 can be purchased through DigiKey, Mouser, and LCSC based on the verified listings available as of 2026-10-29. DigiKey lists the exact orderable MPN as an ARM Cortex-M0+ MCU in an 8-SOIC package, while LCSC reports it in stock from $0.8236. Actual stock, shipment timing, and quantity pricing can change, so confirm the live distributor offer before placing a production order.
What is the price and lead time of STM32G031J6M6?
The verified starting price for the STM32G031J6M6 is $0.8236 as of 2026-10-29 from the supplied LCSC listing, which also reports the part in stock. The verified web data does not provide separate lead-time figures or validated volume-break prices for DigiKey and Mouser. The five displayed quantity tiers therefore repeat the single verified starting price rather than inventing undisclosed discounts. Request a current quotation for production quantities.

بيانات مرجعية هندسية لـ STM32G031J6M6 — المقارنة وإرشادات التصميم ومعلومات الامتثال.

دليل الاختيار

Choose the STM32G031J6M6 for a new design needing a 64 MHz Cortex-M0+ core, 32 KB of Flash, 8 KB of SRAM, two USARTs, an ADC, and a compact eight-pin SOIC package within a 1.7 V to 3.6 V supply range. Its strongest advantages are the verified memory capacity, communication resources, and small footprint. Consider the STM32G041J6M6 only after comparing the complete pinout, memory map, peripheral configuration, clock tree, and device identifiers; the supplied web evidence establishes a related alternative but not a complete functional equivalence. Other search results naming STM32G031K6U6 or STM32G031F6P6 were excluded because their package names differ from the target's 8-pin SOIC. If a proposed substitute cannot be documented as the same package and pin-to-pin compatible, it is not a drop-in replacement for this design.

المقارنة مع البدائل

المعامل هذا المنتج STM32G041J6M6
Brand STMicroelectronics STMicroelectronics
Package 8-pin SOIC 8-pin SOIC

أبرز الفروقات

  • Compact eight-pin implementation with substantial memory for its class (مقابلSTM32G041J6M6)
  • Confirmed dual-USART resource set (مقابلSTM32G041J6M6)
  • Documented low-voltage operation (مقابلSTM32G041J6M6)

ملاحظات التصميم

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.

معلومات الامتثال

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
خالٍ من الرصاص
Unknown
خالٍ من الهالوجين
Unknown
المعادن المتنازع عليها
Unknown

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.

تم التحقق من البيانات في: 2026-10-29 — تم التحقق من البيانات وتنسيقها بواسطة فريق هندسة المكونات في XAIPART

عمليات بحث ذات صلة

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المكونات والمصطلحات ذات الصلة

STMicroelectronics STM32G031J6M6 STM32G041J6M6 STM32G0 STM32G031J6 Arm Cortex-M0+ 32-bit RISC microcontroller embedded microcontroller system-on-chip Flash memory SRAM USART ADC timer 1.7 V to 3.6 V 64 MHz 32 KB Flash 8 KB SRAM 8-pin SOIC surface mount VCORE embedded linear voltage regulator VREF+ VDD
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