STM32G431C8T6 - 170MHz Cortex-M4F 64KB MCU | STMicroelectronics
料号： STM32G431C8T6 ✓ 量产中STM32G431C8T6 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals on one package. The STM32G4 family sits within the hierarchy microcontroller, embedded processor, semiconductor, and programmable control device. STM32 devices combine a Cortex-M4 processor with timers, analog-to-digital converters, digital-to-digital converters, communication interfaces, and GPIO in a single system-on-chip design.
The STM32G431C8T6 provides 64 KB of Flash for firmware and 32 KB of SRAM for working data. Its Cortex-M4F core supports floating-point instructions, while the dedicated math accelerator accelerates suitable digital signal-processing operations. These resources allow real-time algorithms to execute without relying entirely on an external processor.
The verified product information identifies rich analog capabilities and supports 1.8 V, 2.5 V, and 3.3 V supply configurations. The family is positioned for motor-control applications, power-supply control, industrial automation, communications, and consumer equipment where a combination of timing precision, analog conversion, and compact packaging is valuable.
The 48-LQFP package provides 48 externally accessible pins and is suitable for conventional PCB assembly using standard surface-mount technology. Because the MCU integrates analog and digital functions, board design must separate sensitive analog inputs appropriately, provide stable supply bypassing, and route high-current outputs and switching nodes away from precision measurement circuitry.
A practical selection must also account for firmware size, peripheral coverage, pin assignment, regulator requirements, and qualification expectations. The STM32G431C8T6 is most appropriate when a 170 MHz Cortex-M4F MCU with 64 KB Flash and 32 KB SRAM is sufficient and its integrated analog and math-acceleration resources match the control task.
This page consolidates verified manufacturer and distributor information, pricing context, a same-package family alternative, and practical design guidance to support component selection, PCB planning, sourcing, and firmware bring-up.
直接替换替代料： STM32G431C8T6 ——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： STM32G431C8T6 （相同外形与封装尺寸） ——差异在于 Flash Memory, Package.
STM32G431CBT6
✅ 直接替换 ⚠️ 规格未核验✗ 无现货
$3.9773 / 个
查看数据手册 →STM32G431C8T6 最大额定值与电气特性
| Product Type | 32-bit microcontroller with FPU |
| Processor Core | Arm Cortex-M4F |
| Architecture | 32-bit RISC |
| 最大时钟频率 | 170 MHz |
| Digital Processing Performance | 213 DMIPS |
| Flash Memory | 64 KB |
| Flash Organization | 64K x 8 bits |
| SRAM | 32 KB |
| Math Accelerator | Present |
| Operating Voltage Options | 1.8 V / 2.5 V / 3.3 V |
| 封装 | 48-pin LQFP (7 mm x 7 mm) |
| 引脚数量 | 48 pins |
| 安装类型 | Surface mount |
| Analog Capability | Rich analog feature set |
| Product Family | STM32G4 |
STM32G431C8T6 48-pin lqfp (7 mm x 7 mm) 引脚配置指南
STM32G431C8T6（48-pin lqfp (7 mm 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： STM32G431C8T6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32G431C8T6 适用于 6 应用s: Industrial Motor Control, Digital Power Supply Control, Precision Sensor Acquisition, Communication Gateway, Consumer Power and Charging Control, Real-Time Signal Processing.
Industrial Motor Control
The STM32G431C8T6 fits industrial motor-control systems that require deterministic execution alongside accurate analog feedback. Its 170 MHz Cortex-M4F core reaches 213 DMIPS, allowing current-control, position-control, and fault-handling routines to execute with low computational margin. The 64 KB of Flash and 32 KB of SRAM are sufficient for a focused single-axis controller when the application does not require the higher-density STM32G431CBT6 memory option. Rich analog resources support encoder, current, voltage, and temperature measurements close to the processing element. The 48-LQFP package also exposes more pins than compact 32-pin alternatives, which can reduce multiplexing pressure. Firmware should confirm timer-channel mapping, ADC trigger paths, break-input support, and protection requirements against the family datasheet.
推荐
Digital Power Supply Control
The STM32G431C8T6 is appropriate for digital power converters where a fast control loop, analog feedback, and configurable PWM resources must operate in one compact controller. The 170 MHz Cortex-M4F core and math accelerator can process sampled voltage and current data while the STM32G4 analog resources support conversion and comparison functions. Its 64 KB Flash budget can hold a control application, bootloader, and configuration data for a compact design, while the STM32G431CBT6 option is relevant if code storage becomes limiting. The key engineering checks are compensation-loop latency, ADC synchronization, PWM resolution, fault shutdown behavior, and analog reference quality. Layout must keep the MCU and analog return paths away from high-dv/dt switching nodes, and the ST family datasheet should be used to validate every timing and pin-assignment assumption.
推荐
Precision Sensor Acquisition
The STM32G431C8T6 suits precision acquisition nodes that combine sensor conditioning, digital conversion, filtering, and communications in a compact embedded system. Its 170 MHz processing capability supports filtering and control of sampled data, while the math accelerator can accelerate suitable signal-processing workloads. The available 64 KB of Flash and 32 KB of SRAM provide a practical balance for a focused acquisition controller without requiring an external processor. Rich analog features are particularly valuable when the sensor interface depends on accurate sampling, reference control, and threshold detection. The 48-LQFP package offers enough pin access for multiple sensors, status indicators, and external interfaces. Designers should verify ADC resolution, acquisition timing, input impedance, reference stability, and calibration requirements directly from the STMicroelectronics datasheet before selecting the device.
推荐
Communication Gateway
The STM32G431C8T6 can serve as the protocol-processing controller in a compact industrial or embedded communication gateway. The 170 MHz Cortex-M4F core provides enough performance for protocol handling, local data transformation, diagnostics, and supervisory logic, while the 64 KB Flash and 32 KB SRAM support a focused embedded application. The family’s rich analog resources can also support board monitoring and signal conditioning without requiring separate components. Selection should focus on the exact USART, SPI, I2C, USB, or CAN instances required by the design and their alternate-function routing in the 48-LQFP package. The STM32G431CBT6 is the relevant higher-memory family option if protocol stacks and firmware exceed 64 KB. Production validation should include clock-tree configuration, peripheral pin conflicts, bus timing, and bootloader compatibility.
推荐
Consumer Power and Charging Control
The STM32G431C8T6 is suitable for compact charging, power-path, or load-management systems where real-time monitoring and analog feedback are required. Its 170 MHz Cortex-M4F core can execute state machines, fault handling, and measurement algorithms, while the math accelerator benefits suitable arithmetic-intensive routines. The 64 KB Flash and 32 KB SRAM are suitable for a focused embedded controller, although richer user interfaces or safety diagnostics may favor the 128 KB STM32G431CBT6. The 48-LQFP package offers sufficient I/O for charger status, current sensing, load switching control, and communications. Designers must confirm ADC and comparator availability, timer outputs, operating-voltage range, and thermal requirements. PCB layout should prioritize Kelvin-connected current sensing, short analog traces, adequate supply decoupling, and controlled switching-node return paths.
推荐
Real-Time Signal Processing
The STM32G431C8T6 can implement real-time signal-processing functions when an application needs deterministic control and analog measurement without an external DSP. The Cortex-M4F architecture includes floating-point support, and the STM32G4 family adds a math accelerator for suitable computational tasks. At 213 DMIPS and 170 MHz, the device provides meaningful processing margin for filtering, transformations, and control algorithms. Its 64 KB Flash and 32 KB SRAM can support compact algorithms, while the STM32G431CBT6 offers additional program space when libraries or buffering requirements expand. Engineers should use the STMicroelectronics documentation to confirm the precise accelerator-supported operations, peripheral synchronization features, and DMA pathways. Deployment should include fixed-point or floating-point resource analysis, deterministic interrupt latency checks, and confirmation that the chosen sampling rate and conversion timing satisfy the algorithm bandwidth.
推荐
推荐产品汇总
工程参考数据： STM32G431C8T6 ——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 | STM32G431CBT6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP (7 mm x 7 mm) | 48-LQFP (7 mm x 7 mm) |
| Processor Core | Arm Cortex-M4F | Arm Cortex-M4F |
| Maximum Clock Frequency | 170 MHz | 170 MHz |
| Digital Processing Performance | 213 DMIPS | 213 DMIPS |
| Flash Memory | 64 KB | 128 KB |
| SRAM | 32 KB | 32 KB |
| Math Accelerator | Present | Present |
| Operating Voltage Options | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V |
关键差异点
- Higher-memory family alternative for firmware growth （对比 STM32G431CBT6)
- High real-time processing capacity （对比 STM32G431CBT6)
- Integrated analog and acceleration resources （对比 STM32G431CBT6)
设计说明
Place all decoupling capacitors directly beside the STM32G431C8T6 supply pins and connect them to the device ground reference with the shortest possible return path. Keep analog-sensing traces away from PWM outputs, switching nodes, and inductor-current paths. The 48-LQFP footprint provides adequate routing flexibility, but pin multiplexing still requires an early assignment using the official family datasheet so that high-speed and analog functions do not compete for the same pins.
Design clock, debug, and communication routes for the electrical characteristics required by the selected peripheral and trace topology. Terminate clocks only when the ST application guidance or measured edge behavior calls for it; unnecessary series resistance can degrade timing margin. Validate ADC settling, comparator thresholds, and PWM synchronization with the configured clock tree rather than assuming the nominal 170 MHz rate applies to every peripheral.
Determine supply-current and regulator requirements from the actual clock, analog, and temperature configuration. The device supports 1.8 V, 2.5 V, and 3.3 V operating options, but the selected rail must satisfy every operating mode and peripheral domain used by the design. Provide local bulk and high-frequency bypass, verify power-up and reset behavior, and use the current STMicroelectronics reference configuration as the starting point for regulator selection.
Do not substitute another STM32G4 or STM32 microcontroller solely because it uses an Arm Cortex-M core. Check the exact 48-LQFP pin assignments, alternate functions, ADC and timer resources, supply pins, debug interface, bootloader behavior, and peripheral clock requirements. Firmware built for a different density can also differ in vector-table layout and memory organization, so software and board validation must accompany any substitution review.
合规信息
The supplied verified web data does not explicitly state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status for STM32G431C8T6.
