STM32G031C8T7 - 64MHz Cortex-M0+ MCU | STMicroelectronics
料号： STM32G031C8T7 ✓ 量产中STM32G031C8T7 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, analog and digital peripherals, and communication interfaces onto one device. The STM32G0 family belongs to the broader embedded-controller hierarchy: Arm Cortex-M0+ core, 32-bit microcontroller, embedded processor, and system-on-chip. Its compact architecture is intended for cost-sensitive products in which deterministic control, low component count, and flexible peripheral integration matter more than high-end graphics or large memory capacity.
The STM32G031C8T7 combines a 64 MHz Arm Cortex-M0+ processor with 64 KB of Flash and 8 KB of SRAM. The listed connectivity capabilities include I2C, SPI, UART, IrDA, LIN bus, and Smart Card interfaces. Forty-four I/O pins provide connections for sensors, actuators, displays, communications, and control signals. Operation from 2.5 V and 3.3 V supply rails also supports both conventional embedded-system voltages found in industrial, consumer, and instrumentation equipment.
The STM32G031x4, STM32G031x6, and STM32G031x8 devices share the Arm Cortex-M0+ platform, while their memory capacities and peripheral resources differ by density grade. The x8 designation in STM32G031C8 corresponds to the 64 KB Flash variant shown in the product listing. The C package code identifies the 48-pin configuration, while the T7 ordering code identifies the specified temperature and package arrangement associated with this ordering code.
Typical applications include low-cost sensor nodes, compact motor and timer-control boards, industrial monitoring instruments, communication modules, and mixed-signal control products. Designers can use the analog-to-digital conversion, timer, PWM, and serial interface resources to consolidate functions that otherwise require separate analog, timing, and communication components. The 48-pin LQFP also provides more I/O access than smaller packages while remaining inspectable and repairable by conventional leaded-assembly methods.
Layout planning should prioritize short, continuous supply and ground paths around the microcontroller, especially around analog inputs and external interfaces. Decoupling capacitors should be placed directly beside their associated power pins, while oscillator and high-speed signal routes should avoid crossing noisy switching paths. Firmware changes between MCU families should be reviewed against peripheral availability, interrupt behavior, memory layout, and pin multiplexing before production use.
This product record combines manufacturer device information, distributor specifications, package characteristics, replacement guidance, and practical design notes. It is intended to help engineers determine whether the STM32G031C8T7 matches the required core performance, memory capacity, I/O count, interface set, package, and operating environment before committing a design to production.
直接替换替代料： STM32G031C8T7 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32G031C8T7 （相同外形与封装尺寸） ——差异在于 Package, SRAM, ADC, Communication Interfaces, Flash Memory.
STM32G031C8U6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G031C8T6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G051C8U6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G051C8T6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G071C8U6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32G071C8T6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G031C8T7 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M0+ microcontroller |
| Manufacturer | STMicroelectronics |
| Maximum CPU Frequency | 64 MHz |
| Flash Memory | 64 KB (64K x 8) |
| SRAM | 8 KB |
| Core Architecture | Arm Cortex-M0+ |
| Instruction Width | 32-bit |
| Number of I/O Pins | 44 pins |
| 电源电压 | 2.5 V to 3.3 V |
| 封装 | 48-pin LQFP (7 x 7 mm) |
| 安装类型 | Surface mount |
| I2C Support | Yes |
| SPI Support | Yes |
| UART Support | Yes |
| IrDA Support | Yes |
| LIN Bus Support | Yes |
| Smart Card Support | Yes |
| ADC | 12-bit ADC |
| Timer and PWM | Timer-driven control and PWM resources |
STM32G031C8T7 48-pin lqfp (7 x 7 mm) 引脚配置指南
STM32G031C8T7（48-pin lqfp (7 x 7 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM32G031C8T7.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32G031C8T7 适用于 6 应用s: Industrial Sensor Monitoring, Compact Motor and PWM Control, Smart Home and IoT Control Nodes, Communications Interface Module, Data Acquisition Front End, Consumer Accessory Controller.
Industrial Sensor Monitoring
The STM32G031C8T7 fits compact sensor-monitoring equipment that requires local conversion, filtering, timing, and communications. Its 12-bit ADC supports measurements from analog sensors, while the 64 MHz Cortex-M0+ core provides enough responsiveness for background sampling and control loops. The 44 available I/O pins can connect digital sensors, status indicators, alarm outputs, and configuration interfaces. I2C and SPI suit digital sensors and converters, while UART or LIN bus support links to local controllers. Because the device operates from 2.5 V and 3.3 V rails, it can share common embedded-system power architectures, although the final sensor excitation and interface voltage limits must match the selected components.
推荐
Compact Motor and PWM Control
The STM32G031C8T7 is suitable for small motor-control, valve-drive, and timer-based actuator boards where deterministic PWM generation and multiple control signals are required. The 64 MHz Arm Cortex-M0+ processor can execute motor algorithms, while the MCU's timers and PWM resources generate command waveforms for external drivers. Forty-four I/O pins provide room for direction, fault, position, and interlock signals. Compared with a higher-clock microcontroller, the STM32G031C8T7 offers a simpler, lower-resource architecture for embedded control, but designers must verify timer channels, complementary outputs, and break input availability against the exact package pin map before assigning motor-control functions.
推荐
Smart Home and IoT Control Nodes
The STM32G031C8T7 works well as the local controller in compact smart-home and IoT nodes because it combines an Arm Cortex-M0+ core, mixed-signal inputs, timer control, and several serial interfaces in one 48-pin device. I2C can connect sensors and configuration devices, SPI can support displays or faster peripherals, and UART can provide a debug or host interface. The 64 KB Flash and 8 KB SRAM are suitable for firmware that performs local logic, filtering, and state management. A wireless radio remains external to this MCU, so the design should define the interface, buffering, and protocol ownership between the STM32G031C8T7 and the communication module.
推荐
Communications Interface Module
The STM32G031C8T7 is appropriate for a compact communications interface that must combine protocol handling, data buffering, diagnostics, and local configuration. Its UART, I2C, SPI, IrDA, LIN bus, and Smart Card capabilities enable several physical-interface options without changing the MCU family. The 64 MHz Cortex-M0+ core can service protocol state machines and data transfers, while 8 KB of SRAM supports buffering for short frames. The 48-pin LQFP provides adequate signal access for a transceiver, connector, configuration interface, and status controls. Engineers should check the exact peripheral instance count and alternate-function mapping for every interface used simultaneously.
推荐
Data Acquisition Front End
The STM32G031C8T7 can serve as the control and processing element in a small data-acquisition front end built around its 12-bit ADC and extensive I/O capability. The device can sample analog channels, apply calibration and filtering, record results in its 64 KB Flash, and expose processed measurements through UART, I2C, or SPI. Forty-four I/O pins simplify channel multiplexing, trigger capture, status signaling, and front-panel control. For designs requiring greater analog precision, a dedicated higher-resolution ADC can be connected through SPI or I2C while the MCU handles configuration, timing, and data transfer. Calibration, reference selection, and acquisition timing must be validated together to avoid correlated measurement errors.
推荐
Consumer Accessory Controller
The STM32G031C8T7 is well suited to compact consumer accessories that combine capacitive or resistive sensing, local LEDs, buttons, and a serial host interface. Its 64 MHz processing core supports responsive control logic, while the timer and PWM resources can drive indicators or timing functions. I2C and SPI provide connections to configuration devices, display modules, or sensors, and UART can serve as a command interface. The 48-pin LQFP offers enough I/O for accessory features while avoiding the complexity of a larger package. Firmware should include debouncing, brownout handling, and safe state transitions so peripherals remain predictable during power-up, reset, and communication loss.
推荐
推荐产品汇总
工程参考数据： STM32G031C8T7 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32G031C8U6 | STM32G031C8T6 | STM32G051C8U6 | STM32G071C8U6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-pin LQFP (7 x 7 mm) | 48-pin LQFP (7 x 7 mm) | 48-pin LQFP (7 x 7 mm) | 48-pin LQFP (7 x 7 mm) | 48-pin LQFP (7 x 7 mm) |
| CPU Core | 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 |
| Ordering Code | STM32G031C8T7 | STM32G031C8U6 | STM32G031C8T6 | STM32G051C8U6 | STM32G071C8U6 |
关键差异点
- Matches the specified 64 KB Flash STM32G031C8 density and 48-pin footprint （对比 STM32G051C8U6)
- Direct same-family ordering alternatives retain the core and memory architecture （对比 STM32G031C8T6)
- Eighteen additional I/O pins support compact mixed-signal and control products （对比 STM32L031K6T7)
设计说明
Place the required supply and ground decoupling capacitors directly beside the corresponding STM32G031C8T7 pins, with short, low-loop-area traces. Route analog inputs away from switching nodes and digital timing signals, and use a continuous ground reference beneath the device where the PCB stack-up permits it. The 48-pin LQFP footprint requires accurate land patterns and sufficient solder-paste volume; inspect the assembled joints with adequate magnification because fine-pitch lead defects can cause intermittent clock or communication failures.
Assign pins from the exact STM32G031C8 package before finalizing the schematic because alternate functions and debug assignments can constrain simultaneous peripheral use. Keep I2C, UART, and other communications away from high-current switching paths, and provide pull resistors where the interface specification requires them. For oscillator-dependent timing, use the manufacturer-specified layout and loading recommendations, and validate signal integrity with an oscilloscope across operating voltage and temperature extremes.
Do not treat the STM32G031C8 family variants as automatically firmware-compatible without checking the exact density code and ordering suffix. Confirm Flash size, SRAM, peripheral availability, pin multiplexing, package, and temperature grade against the selected part before releasing a PCB or production firmware. Also distinguish the T7 tray ordering code from other ordering codes that may change temperature range, packing, or ordering conditions even when the land pattern remains the same.
合规信息
Compliance declarations for this exact ordering code were not identified in the product information and require confirmation from STMicroelectronics before procurement.