STM32G031F4P3 - 64MHz Arm Cortex-M0+ MCU | STMicroelectronics
部品番号: STM32G031F4P3 ✓ 生産中STM32G031F4P3 概要
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The STM32G0 family belongs to the hierarchy of Arm Cortex-M0+ processor, 32-bit microcontroller, embedded processor, and semiconductor. STM32G031F4P3 targets cost-sensitive control systems where moderate processing speed, compact packaging, and a broad set of mixed-signal and serial peripherals are more important than large memory capacity.
The device operates at up to 64 MHz and provides 16 KB of Flash memory plus 8 KB of SRAM. Its 1.7 V to 3.6 V operating range supports low-voltage embedded systems. Two USARTs permit serial communication with sensors, displays, wireless modules, or service interfaces, while the integrated timers and ADC support periodic control and analog-signal measurement. The 20-pin TSSOP package also facilitates compact, high-density PCB assembly.
The Arm Cortex-M0+ architecture uses a 32-bit RISC instruction set designed for efficient embedded workloads. Its relatively compact instruction set and peripheral ecosystem make it suitable for motor-control assistance, simple communications, sensor hubs, and consumer-equipment controllers. Peripheral configuration and software development are supported by the STM32G0 family ecosystem, including STM32Cube programming tools and the ST-LINK debug and programming interface.
Typical applications include compact sensor nodes, digital control panels, low-cost communication modules, industrial sensing terminals, and compact consumer appliances. A design can assign two USART channels to separate external devices, use timer outputs for periodic functions, and use the ADC for analog monitoring. Firmware should be configured around the available 16 KB of Flash and 8 KB of SRAM, avoiding resource-intensive buffering or libraries that exceed those limits.
A key design consideration is decoupling and correct voltage selection. Place the required input and output capacitors close to the power pins, route sensitive analog and communication signals away from switching nodes, and confirm the external components connected to exposed pins meet the device's electrical limits. Software developers should also use the STM32CubeMX pin-assignment workflow so alternate-function and peripheral mappings match the selected TSSOP-20 footprint.
This product page combines manufacturer specifications, package details, application guidance, drop-in alternatives, and practical design notes. It is intended to accelerate component selection, PCB planning, firmware setup, and sourcing for compact Cortex-M0+ control systems.
ドロップイン代替品: STM32G031F4P3 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: STM32G031F4P3 （同一形状・フットプリント） — 相違点: Flash Memory, Architecture, Mounting Type, Package, ADC.
STM32G031F4P6
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データシートを見る →STM32G031F6P6
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データシートを見る →STM32G031F8P6
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$1.0664 / 個
データシートを見る →STM32G031F6P3
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STM32G031F8P3
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データシートを見る →STM32G031F4P3 最大定格＆電気的特性
| Product Type | 32-bit Arm Cortex-M0+ microcontroller |
| Maximum CPU Frequency | 64 MHz |
| Flash Memory | 16 KB |
| SRAM | 8 KB |
| Operating Voltage Range | 1.7 V to 3.6 V |
| USART Count | 2 |
| Architecture | Arm Cortex-M0+ 32-bit RISC |
| パッケージ | 20-pin TSSOP |
| Terminal Count | 20 |
| 実装タイプ | Surface mount |
| Program Memory Architecture | 16K x 8 bits |
STM32G031F4P3 20-pin tssop ピン配置ガイド
STM32G031F4P3 (20-pin tssop パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: STM32G031F4P3.
詳細は データシート をご参照ください。
主な用途
STM32G031F4P3 の用途: 6 件s: Compact Industrial Sensor Node, Digital Control Panel, Local Communications Module, Compact Motor and Relay Controller, Battery-Powered Home Sensor, USB-C PD Auxiliary Controller.
Compact Industrial Sensor Node
The STM32G031F4P3 fits compact sensor nodes that must sample analog inputs, execute control logic, and transmit measurements through a serial link. Its ADC supports analog monitoring, while timers provide periodic sampling and actuator timing. Two USARTs allow separate communication paths for a local sensor interface and an upstream controller. The 20-pin TSSOP conserves board area, and operation from 1.7 V to 3.6 V supports low-voltage designs. Engineers should keep firmware and buffering within 16 KB of Flash and 8 KB of SRAM, while validating the sensor bandwidth and ADC accuracy against the application requirements.
おすすめ
Digital Control Panel
The STM32G031F4P3 can serve as the central controller in a compact human-interface panel containing buttons, indicators, and a serial display. Its 64 MHz Cortex-M0+ core processes input events and menu logic, while the timers manage indicator timing and debounce functions. Two USARTs can support a display and an external service connector. The TSSOP-20 package leaves PCB space for connectors and protection components. Firmware should use a compact UI architecture because the device provides 16 KB of Flash and 8 KB of SRAM; low-power behavior should also be tested with the complete panel load attached.
おすすめ
Local Communications Module
The STM32G031F4P3 is suitable for a local communications module that bridges embedded sensors to a host through UART-based protocols. One USART can connect to a wireless or network module while the second supports configuration, diagnostics, or an external controller. Up to 64 MHz operation provides adequate response time for protocol handling, and the 1.7 V to 3.6 V range simplifies integration with low-voltage transceivers. Designers should allocate protocol buffers carefully within 8 KB of SRAM and use the manufacturer pin table to assign alternate-function signals without conflicts.
おすすめ
Compact Motor and Relay Controller
The STM32G031F4P3 can coordinate timing-based control functions in compact motor-control and relay systems. Timers support deterministic switching sequences, the ADC can monitor an analog feedback signal, and the USARTs enable diagnostics or parameter configuration. The 20-pin TSSOP footprint supports space-efficient assemblies where relays, drivers, and protection components occupy most of the board area. Firmware should include startup delays, fault handling, and safe-state behavior. Current limits, inductive-load flyback requirements, and logic-level compatibility must be validated independently because the MCU itself does not directly drive the load.
おすすめ
Battery-Powered Home Sensor
The STM32G031F4P3 can act as the controller in a small battery-powered home or IoT sensing product. Its low-voltage operating range supports compact power designs, while timers enable periodic wake-and-sample behavior. The ADC and two USARTs cover analog sensing and communication with a local radio or gateway. The TSSOP-20 package minimizes footprint, although quiescent-current behavior and wake-up timing must be measured in the complete product. Firmware size should remain compact, and the selected energy-harvesting or battery regulator should preserve stable supply voltage across temperature and load conditions.
おすすめ
USB-C PD Auxiliary Controller
The STM32G031F4P3 can implement low-speed auxiliary control functions in a USB-C power-delivery design where two USARTs, timers, and general-purpose I/O are required. The microcontroller can coordinate status handling, button logic, or monitoring signals while a dedicated power-delivery controller manages the high-speed protocol. Its 16 KB Flash and 8 KB SRAM are sufficient for compact supervisory firmware, and the TSSOP-20 package supports space-efficient placement. The design must respect USB-C timing, electrical isolation, and power-domain requirements, and firmware should not replace the protection and power-path functions of dedicated interface devices.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STM32G031F4P3 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STM32G031F4P6 | STM32G031F6P6 | STM32G031F8P6 | STM32G031F6P3 | STM32G031F8P3 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 20-pin TSSOP | 20-pin TSSOP | 20-pin TSSOP | 20-pin TSSOP | 20-pin TSSOP | 20-pin TSSOP |
| CPU Core | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Flash Memory | 16 KB | 16 KB | 32 KB | 48 KB | 32 KB | 48 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Voltage Range | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.7 V to 3.6 V |
| USART Count | 2 | 2 | 2 | 2 | 2 | 2 |
| Ordering or Grade Suffix | P3 | P6 | P6 | P6 | P3 | P3 |
主な差別化要因
- Lowest Flash configuration in the identified drop-in family set （vs STM32G031F6P6)
- Direct x4-family memory match with a different ordering suffix （vs STM32G031F4P6)
- Smaller embedded memory footprint than the x8 upgrade path （vs STM32G031F8P6)
設計ノート
Place the mandatory input, output, and analog-decoupling capacitors directly beside their associated power and ground pins. Keep the return path short and use the ground-plane connectivity required by the package drawing. Route high-current loads and inductive switching nodes away from ADC and communication signals. PCB review should compare the physical pad dimensions with the STM32G031F4 TSSOP-20 land pattern before release.
The supported supply range is 1.7 V to 3.6 V, so verify the minimum voltage across the MCU pins during startup, transient recovery, and temperature extremes rather than checking only the nominal regulator output. Select decoupling and bulk capacitance using the recommended circuits in the manufacturer datasheet. A common pitfall is designing for 3.3 V operation while neglecting brownout behavior during a remote power-up or load transient.
Do not assume that every same-family STM32G031 suffix is an automatic substitution. Compare the exact order code, temperature grade, Flash capacity, package, exposed-pin assignments, and peripheral availability. Firmware should also be retested after changing the memory variant because linker placement, bootloader assumptions, and firmware-size checks may change even when the core and basic peripheral architecture remain the same.
Assign oscillator, debug, boot, reset, and communication pins through the manufacturer configuration workflow, then verify them against the physical package drawing. Keep debug-trace and serial lines away from noisy switching paths, use continuous ground references beneath signal routes, and avoid long unprotected inputs. If the board contains relays, motor drivers, or wireless modules, separate their high-current return paths from the MCU and analog ground area.
コンプライアンス情報
The product is an MCU rather than an automotive-qualified AEC-Q100 device in the identified ordering code. Specific environmental and material-compliance declarations must be confirmed in the current manufacturer product documentation.