STM32G473QBT6 - 170MHz Cortex-M4 MCU | STMicroelectronics
部品番号: STM32G473QBT6 ✓ 生産中STM32G473QBT6 概要
A microcontroller is a programmable semiconductor that integrates a processor core, memory, analog and digital peripherals, and interface controllers on one device. Within the product hierarchy, the STM32G473QBT6 belongs to the STM32G4 family of 32-bit Arm Cortex-M4 microcontrollers, combining embedded processing with high-resolution analog conversion, communication interfaces, and control peripherals. It is designed for systems that require deterministic real-time performance without a separate digital signal processor.
The device provides 128 KB of Flash for firmware and 128 KB of SRAM for working memory. Its Cortex-M4 core operates up to 170 MHz, while the integrated math accelerator is rated at up to 213 DMIPS. These resources suit motor-control algorithms, digital power conversion, industrial automation, and communication-enabled embedded products. The manufacturer identifies the STM32G4 family as offering rich analog resources and a math accelerator for high-performance embedded control.
Operating voltage options identified for this ordering configuration include 1.8 V, 2.5 V, and 3.3 V. The 128-LQFP package exposes 128 pins and measures 14 x 14 mm, providing ample connection density for analog inputs, timers, serial interfaces, debug functions, and general-purpose I/O. Its 32-bit architecture supports efficient control-loop execution and common embedded software-development workflows.
Typical uses include digital power supplies, motor drives, sensor acquisition systems, industrial controllers, and compact industrial communications equipment. The combination of 170 MHz processing, math acceleration, SRAM, and analog peripherals can reduce the need for separate components in signal-conditioning and real-time control designs. The device is particularly attractive when a Cortex-M4 software ecosystem and deterministic embedded control are priorities.
Designers should allocate decoupling close to the supply pins, verify every board-level signal against the STM32G473xB pin description table, and confirm the selected startup, clock, and debug configuration in the manufacturer reference documentation. Firmware changes should be validated for timing margin, peripheral mapping, and analog calibration before production release, especially in safety-critical or timing-sensitive control systems.
This product page consolidates the confirmed core, memory, package, operating-voltage, analog, and math-accelerator characteristics with application guidance, engineering design notes, and same-family drop-in alternatives. It supports faster device selection by separating confirmed manufacturer specifications from parameters that require project-specific verification.
ドロップイン代替品: STM32G473QBT6 — 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: STM32G473QBT6 （同一形状・フットプリント） — 相違点: Package, Math Accelerator, SRAM, ADC, Comparators.
STM32G473CBT6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →STM32G474QBT6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →STM32G473QAT6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32G473QCT6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →STM32G473QET6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32G473QBT6 最大定格＆電気的特性
| Product Type | 32-bit Arm Cortex-M4 microcontroller |
| Maximum Core Frequency | 170 MHz |
| Flash Memory | 128 KB |
| SRAM | 128 KB |
| Math Accelerator Performance | Up to 213 DMIPS |
| CPU Architecture | Arm Cortex-M4 with FPU |
| Instruction Width | 32-bit |
| パッケージ | 128-LQFP, 14 x 14 mm |
| ピン数 | 128 pins |
| 実装タイプ | Surface mount |
| Operating Voltage Options | 1.8 V, 2.5 V, or 3.3 V |
| Analog Resources | Rich analog peripheral set |
| Math Accelerator | Yes |
| Core Architecture | High-performance 32-bit RISC |
| Packaging | Tray |
STM32G473QBT6 128-lqfp, 14 x 14 mm ピン配置ガイド
STM32G473QBT6 (128-lqfp, 14 x 14 mm 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: STM32G473QBT6.
詳細は データシート をご参照ください。
主な用途
STM32G473QBT6 の用途: 6 件s: Digital Power Converters, Motor Drive and Motor Control, Industrial Sensor Acquisition, Industrial Communication Equipment, Precision Test and Measurement, Secure Network Appliances.
Digital Power Converters
The STM32G473QBT6 fits digital power-converter control because its Arm Cortex-M4 core operates up to 170 MHz and its math accelerator reaches up to 213 DMIPS, allowing control calculations to execute with less software overhead than on a simpler microcontroller. The 128-LQFP package provides numerous pins for switching-control outputs, voltage and current sensing, compensation networks, fault signals, and communications. With 128 KB of SRAM, the device can hold sampled waveforms, control state, and communication buffers. The designer should verify the exact PWM channels, ADC characteristics, comparators, and timer mappings against the manufacturer datasheet before finalizing the power-conversion architecture.
Motor Drive and Motor Control
The STM32G473QBT6 is suitable for motor-drive control because its 170 MHz Cortex-M4 core and math accelerator support rapid loop calculations, while the rich analog feature set can support sensing and control functions. The 128-LQFP package offers enough pin density for gate-driver interfaces, position sensors, current measurement, protection inputs, and communication links. Its 128 KB of SRAM provides working memory for sampled current, position, and timing information. Exact PWM channels, analog input counts, and peripheral assignments must be checked for the selected package, and the control loop should be validated across startup, overload, and regeneration conditions.
Industrial Sensor Acquisition
The STM32G473QBT6 can serve as the processing center in a multi-channel sensor-acquisition system because the 32-bit Cortex-M4 core handles filtering, compensation, and communication concurrently. Its 128 KB of SRAM accommodates acquisition buffers without requiring frequent external-memory transfers, and the 128-LQFP package offers extensive I/O and analog connectivity. The manufacturer identifies the STM32G4 family as having rich analog resources, making it relevant to measurement systems requiring fast control of mixed-signal front ends. Engineers should confirm ADC resolution, sampling rate, DAC availability, comparator functions, and the required analog-pin routing in the manufacturer documentation.
Industrial Communication Equipment
The STM32G473QBT6 fits communication-oriented embedded equipment that combines real-time control with multiple external interfaces. Its 170 MHz Cortex-M4 core can process protocol stacks and control tasks, while 128 KB of Flash supports a larger application and 128 KB of SRAM supports packet or message buffering. The 128-LQFP package exposes a broad selection of I/O, communications, debug, and control pins for gateways, controllers, and protocol bridges. Specific UART, SPI, I2C, USB, and other interface availability must be verified by pin and variant in the datasheet, followed by timing and interoperability testing.
Precision Test and Measurement
The STM32G473QBT6 can support compact test and measurement equipment where fast arithmetic, deterministic control, and mixed-signal resources are important. The Cortex-M4 FPU and math accelerator rated up to 213 DMIPS are well suited to filtering, calibration, and real-time signal processing, while the rich analog resources support measurement front ends. The 128-LQFP package provides sufficient connections for analog inputs, stimulus control, status indicators, and communications. Validate the required converter performance, reference accuracy, noise behavior, and peripheral assignments for the intended instrument class rather than assuming that general MCU specifications determine measurement accuracy.
Secure Network Appliances
The STM32G473QBT6 is applicable to embedded gateways and network appliances that need deterministic peripheral control alongside communications and security-oriented firmware. Its 128 KB of Flash supports the operating system, communication services, and application code, while 128 KB of SRAM handles active protocol state. The 128-LQFP package exposes the required communications, control, and debug connections without requiring a very small leadless package. Engineers should confirm Ethernet MAC, cryptographic accelerator, USB, secure-boot, and boot-interface availability for the exact STM32G473 device, because those functions can differ across related family members and ordering codes.
エンジニアリング参考データ: STM32G473QBT6 — 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 | STM32G473CBT6 | STM32G474QBT6 | STM32G473QAT6 | STM32G473QCT6 | STM32G473QET6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 128-LQFP (14 x 14 mm) | 128-LQFP (14 x 14 mm) | 128-LQFP (14 x 14 mm) | 128-LQFP (14 x 14 mm) | 128-LQFP (14 x 14 mm) | 128-LQFP (14 x 14 mm) |
| Core | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 |
| Maximum Core Frequency | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB, 50% less than target | 256 KB, 100% more than target | 512 KB, 300% more than target |
| Pin Count | 128 pins | 128 pins | 128 pins | 128 pins | 128 pins | 128 pins |
主な差別化要因
- Balanced memory and control performance （vs STM32G473QAT6)
- Maximum math-accelerator throughput in the comparison set （vs STM32G474QBT6)
- Lower flash capacity than larger same-package variants （vs STM32G473QET6)
設計ノート
Design the supply network around the device's supported 1.8 V, 2.5 V, and 3.3 V operating options. Place the required bypass capacitors close to the corresponding VDD and VSS pins, follow the capacitor values and placement guidance in the manufacturer datasheet, and provide low-impedance return paths for switching-sensitive analog and digital sections. Review analog-supply filtering and shared-ground current paths carefully so switching currents do not add noise to precision measurements.
Use the STM32G473xB pin-description table to assign all 128 LQFP positions before routing the board. Keep analog inputs away from high-current switching nodes and maintain short ground references for each analog signal. Respect the package footprint, solder-mask definition, pin-one orientation, and exposed thermal-pad requirements shown in the manufacturer land-pattern guidance. Because an exact 128-LQFP package drawing is unavailable in the selected diagram library, do not infer pin locations from a visually similar package.
Do not treat same-package family members as firmware-identical without validation. Flash capacity, peripheral availability, interrupt vectors, clock options, analog functions, and device identifiers can differ among STM32G473 and STM32G474 variants. Before substituting a listed device, compare the manufacturer datasheets, rebuild the project with the intended device definition, test boot and peripheral initialization, and verify timing-sensitive control loops under worst-case operating conditions.
コンプライアンス情報
The manufacturer product page and listing snippets do not state the required compliance statuses. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations for the exact ordering code and manufacturing site.
