STM32G474CBT6 - 170MHz 128KB Cortex-M4F MCU | STMicroelectronics
料号： STM32G474CBT6 ✓ 量产中STM32G474CBT6 概述
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The Cortex-M4F core uses the Arm Thumb instruction set and includes single-precision floating-point hardware. Within the embedded-device hierarchy, the STM32G4 family provides more processing capability than general-purpose Cortex-M0 or Cortex-M0+ devices while retaining the compact, energy-efficient architecture commonly used for real-time control systems.
The STM32G474CBT6 provides 128 KB of flash memory for firmware and 128 KB of RAM for working data. Its 170 MHz maximum operating frequency supports faster control-loop execution, diagnostic processing, communications handling, and concurrent peripheral activity. The Arm Cortex-M4F processor is specified at up to 213 DMIPS, making the device suitable for applications that combine real-time sampling with advanced digital signal processing.
The STM32G4 family architecture is designed for high-resolution analog control and general-purpose embedded processing. Its integrated peripherals allow a design to place sensing, control, communications, and protection functions around one microcontroller rather than requiring separate discrete devices. This integration can reduce component count and simplify firmware organization while preserving deterministic peripheral operation.
Typical uses include industrial motor control, digital power conversion, metering, condition monitoring, building automation, and communications equipment. The 170 MHz Cortex-M4F performance is particularly useful when the control system must execute mathematical transformations alongside real-time input sampling. The 48-LQFP package also provides a leaded surface-mount format that is practical for prototypes, automated assembly, and designs requiring visually inspectable connections.
PCB design should preserve the decoupling structure and pin assignments specified in the STMicroelectronics datasheet. Place each supply pin’s local bypass capacitor close to the corresponding power and ground pins, route high-current outputs separately from sensitive analog inputs, and use a continuous ground reference beneath the device where the package footprint permits. Validate the final layout for signal integrity, thermal performance, and electromagnetic compliance.
This product record combines the manufacturer’s device information with practical engineering guidance for STM32G474CBT6 selection and PCB implementation. The application guidance, package-focused comparison, and design notes clarify how the 170 MHz Cortex-M4F performance, 128 KB flash configuration, and 48-LQFP footprint can be used when developing robust embedded systems.
直接替换替代料： STM32G474CBT6 ——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： STM32G474CBT6 （相同外形与封装尺寸） ——差异在于 Package, Core, Flash Memory, SRAM, Communication Interfaces.
STM32G473CBT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32G491CBT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32G484CBT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32G471CBT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32G474CBT6 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M4F microcontroller |
| Core | Arm Cortex-M4F |
| Maximum CPU Frequency | 170 MHz |
| Core Performance | Up to 213 DMIPS |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 bits |
| RAM | 128 KB |
| Architecture | 32-bit RISC |
| Instruction Set | Arm Thumb |
| Floating-Point Unit | Single-precision FPU |
| 封装 | 48-LQFP (7 mm x 7 mm) |
| 安装类型 | Surface mount |
| ADC Resolution | 12-bit |
STM32G474CBT6 48-lqfp (7 mm x 7 mm) 引脚配置指南
STM32G474CBT6（48-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： STM32G474CBT6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32G474CBT6 适用于 6 应用s: Industrial Motor Control, Digital Power Conversion, Condition Monitoring, Building Automation, Smart Metering, Connected Sensor Nodes.
Industrial Motor Control
The STM32G474CBT6 fits industrial motor-control systems that combine fast control-loop execution with embedded signal processing. Its Arm Cortex-M4F core operates up to 170 MHz and delivers up to 213 DMIPS, allowing position, speed, and current-control routines to run alongside communications and diagnostics. The 128 KB flash capacity accommodates motor-control firmware, parameter tables, and update logic, while 128 KB RAM supports working buffers and control state. Its 48-LQFP package also provides a practical surface-mount assembly format. Before deployment, verify the timer, ADC, DAC, comparator, and PWM resources required by the selected motor-control algorithm.
推荐
Digital Power Conversion
The STM32G474CBT6 is appropriate for digital power converters that require deterministic feedback processing and accurate analog monitoring. Running at up to 170 MHz, the Cortex-M4F core can execute compensation algorithms and supervisory logic while the integrated mixed-signal resources support sensing and control functions. The 128 KB flash and 128 KB RAM balance firmware storage with real-time data handling, and the single-precision FPU assists mathematical operations. In a converter design, use local supply bypassing and separate analog and digital return paths as directed by the STMicroelectronics manufacturer datasheet. Confirm timer resolution, ADC performance, operating voltage, and thermal conditions against the intended power stage.
推荐
Condition Monitoring
The STM32G474CBT6 can serve as the processing center in industrial condition-monitoring equipment that combines sensor acquisition, filtering, feature extraction, and communications. Its 170 MHz Cortex-M4F core and up to 213 DMIPS throughput support faster analysis than basic Cortex-M-class controllers, while the single-precision floating-point unit assists digital filtering and transform operations. With 128 KB flash and 128 KB RAM, it can retain firmware, configuration, and a working measurement window on one device. The 48-LQFP footprint is useful for compact controller boards. Validate ADC sampling behavior, analog noise, watchdog strategy, communication timing, and operating-temperature limits for each deployed monitoring channel.
推荐
Building Automation
The STM32G474CBT6 fits building-automation controllers that coordinate sensors, actuators, networking, and local safety logic. Its 170 MHz Cortex-M4F performance permits responsive control tasks and protocol processing within one embedded design, while 128 KB flash supports application firmware and 128 KB RAM provides space for schedules, state, and communication buffers. The 48-LQFP package supports compact yet inspectable assemblies commonly used in controllers and gateways. During schematic capture, verify each alternate-function, debug, clock, and communication pin against the exact package drawing. Production qualification should also cover the installed temperature range, brownout behavior, supply transients, and isolation requirements of the building network.
推荐
Smart Metering
The STM32G474CBT6 is suitable for smart-metering electronics requiring accurate measurement, local processing, and communication handling. The 170 MHz Cortex-M4F core can execute filtering, calibration, tariff logic, and data framing while its floating-point unit accelerates arithmetic-heavy routines. Storage is balanced for embedded use, with 128 KB flash for firmware and 128 KB RAM for buffers and measurement data. The 48-LQFP package provides a practical footprint for a compact meter-control board. Validate the analog measurement path, ADC characteristics, timer accuracy, communication interfaces, low-power requirements, and metrology-relevant timing. Brownout, reset, and safe-state behavior should also be validated across the complete input-voltage range.
推荐
Connected Sensor Nodes
The STM32G474CBT6 supports connected sensor nodes that combine local sensing, edge processing, and network communications. Its 170 MHz Cortex-M4F core and up to 213 DMIPS performance allow sensor data to be filtered and interpreted before transmission, reducing unnecessary network traffic. The 128 KB flash and 128 KB RAM provide space for protocol stacks, application logic, and data buffering, while the 48-LQFP package supports compact board construction. A production design should confirm the required serial interfaces, debug access, clock arrangement, and supply pins for the selected configuration. Environmental qualification should include temperature exposure, power-consumption measurements, antenna-system integration, and immunity to the electrical and radiated disturbances expected in the deployment environment.
推荐
推荐产品汇总
工程参考数据： STM32G474CBT6 ——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 | STM32G473CBT6 | STM32G491CBT6 | STM32G484CBT6 | STM32G471CBT6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP (7 mm x 7 mm) | 48-LQFP (7 mm x 7 mm) | 48-LQFP (7 mm x 7 mm) | 48-LQFP (7 mm x 7 mm) | 48-LQFP (7 mm x 7 mm) |
| CPU Core | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F |
| Maximum CPU Frequency | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz |
| Floating-Point Unit | Single-precision FPU | Single-precision FPU | Single-precision FPU | Single-precision FPU | Single-precision FPU |
| Architecture | 32-bit RISC | 32-bit RISC | 32-bit RISC | 32-bit RISC | 32-bit RISC |
关键差异点
- Retains the full STM32G474 mixed-signal and control feature set （对比 STM32G473CBT6)
- Provides a predictable 128 KB flash configuration （对比 STM32G491CBT6)
- Combines 170 MHz processing with 128 KB RAM （对比 STM32G471CBT6)
设计说明
Place the required bypass capacitors adjacent to their corresponding power and ground pins, using the shortest possible current path. Follow the manufacturer’s recommended capacitance, voltage rating, and layout geometry. Keep analog inputs and their reference paths away from switching nodes and high-current return paths. A continuous ground reference under the device improves return-path continuity where the footprint and assembly rules permit it.
Assign every pin against the STM32G474CBT6 pin-description table before schematic release, including alternate-function multiplexing, debug access, reset, clock inputs, and boot-related pins. The 48-LQFP footprint is compact, so crowded escape routing can create crosstalk and assembly issues. Preserve the exposed lead pitch and package outline, and check the chosen land pattern against the current manufacturer package drawing before Gerber generation.
Design the supply network for the voltage and transient conditions required by the STM32G474CBT6 rather than relying only on nominal logic levels. Verify startup current, brownout behavior, decoupling effectiveness, and the startup behavior of downstream loads. For systems containing motors, relays, or power converters, prevent switching transients and ground currents from propagating into the microcontroller’s analog and clock circuitry.
Do not assume that another STM32G4 microcontroller in the same 48-LQFP package is an exact functional substitute. Compare alternate-function mappings, timer channels, ADC instances, communication peripherals, memory sizes, clock pins, and startup characteristics. Recheck pin-level dependencies after firmware changes because moving a peripheral to another instance can affect its routing and internal connections.
合规信息
The STM32G474CBT6 is an industrial-grade microcontroller rather than an AEC-Q100 automotive-qualified variant. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status should be confirmed from the current manufacturer product documentation or declaration for the exact ordering code.
