STM32G474CBT6 - 170MHz 128KB Cortex-M4F MCU | STMicroelectronics
N.º de pieza: STM32G474CBT6 ✓ ActivoSTM32G474CBT6 Descripción general
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.
Alternativas directas para STM32G474CBT6 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con STM32G474CBT6 (mismo factor de forma y huella) — difiere en Package, Core, Flash Memory, SRAM, Communication Interfaces.
STM32G473CBT6
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →STM32G491CBT6
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
STM32G484CBT6
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STM32G471CBT6
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STM32G474CBT6 Valores máximos y características eléctricas
| 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 |
| Encapsulado | 48-LQFP (7 mm x 7 mm) |
| Tipo de montaje | Surface mount |
| ADC Resolution | 12-bit |
Guía de configuración de pines de STM32G474CBT6 48-lqfp (7 mm x 7 mm)
Configuración de pines para STM32G474CBT6 (encapsulado 48-lqfp (7 mm x 7 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para STM32G474CBT6.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM32G474CBT6 es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM32G474CBT6 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Retains the full STM32G474 mixed-signal and control feature set (frente a STM32G473CBT6)
- Provides a predictable 128 KB flash configuration (frente a STM32G491CBT6)
- Combines 170 MHz processing with 128 KB RAM (frente a STM32G471CBT6)
Notas de diseño
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.
Información de cumplimiento
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.
