STM32G491CCU6 - 170MHz 256KB Cortex-M4 MCU | STMicroelectronics
MPN: STM32G491CCU6 ✓ نشطSTM32G491CCU6 نظرة عامة
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and interface logic into one device. The STM32G491 belongs to the STM32G4 family of 32-bit embedded microcontrollers, combining a high-performance Arm Cortex-M4 core with a rich analog feature set and math accelerator. Its position within the embedded hierarchy is Arm Cortex-M processor, microcontroller, embedded controller, and semiconductor.
The STM32G491CCU6 operates at 170 MHz and provides up to 213 DMIPS according to the manufacturer datasheet. Its 256 KB Flash memory is organized as 256K x 8, while the STM32G491xC and STM32G491xE family supports up to 112 KB SRAM. The combination of 1.8 V, 2.5 V, and 3.3 V operating references, a math accelerator, and an analog-oriented feature set supports efficient real-time signal processing.
Its Arm Cortex-M4F architecture includes single-precision floating-point hardware, which accelerates control equations and digital filtering without requiring a separate numerical processor. The family is designed around a high-performance Cortex-M4 32-bit RISC core and integrates rich analog resources, making it suitable for motor-control, industrial automation, power-conversion, communications, and embedded sensing systems.
Typical uses include digital power controllers, motor-control systems, industrial sensor hubs, condition-monitoring equipment, communication nodes, and compact embedded instruments. The 48-pin UFQFPN format supports a space-conscious board layout while retaining a broad collection of GPIO and peripheral interfaces for external sensors, power stages, and communications transceivers.
Designers should preserve the exposed-pad thermal and electrical requirements of the UFQFPN package and follow the manufacturer pin-definition and land-pattern guidance. Firmware and peripheral configuration should use the STM32G4 device support files, and production designs should verify startup, clock, debug, and analog calibration behavior across the complete temperature and voltage range.
This product page consolidates the key technical characteristics, procurement path, package information, application guidance, and drop-in family alternatives into one engineering-focused reference. It also distinguishes an exact same-family alternative from a reduced-Flash variant so engineers can assess PCB reuse without treating package similarity as complete functional equivalence.
بدائل مباشرة لـ STM32G491CCU6 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع STM32G491CCU6 (نفس عامل الشكل والبصمة) — يختلف في Math Accelerator, Product Type.
STM32G491CEU6
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عرض ورقة البيانات ←STM32G491CBU6
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STM32G491CCU6 الحدود القصوى والخصائص الكهربائية
| Product Type | 32-bit microcontroller |
| Processor Core | Arm Cortex-M4F |
| Instruction Set | 32-bit RISC |
| Maximum CPU Frequency | 170 MHz |
| Peak Performance | 213 DMIPS |
| Flash Memory | 256 KB (256K x 8) |
| Family Maximum Flash Memory | 512 KB |
| Family Maximum SRAM | 112 KB |
| Operating Voltage References | 1.8 V, 2.5 V, and 3.3 V |
| العلبة | 48-pin UFQFPN |
| Package Dimensions | 7 x 7 mm |
| Exposed Pad | Present |
| نوع التركيب | Surface mount |
| Math Accelerator | Present |
| Analog Features | Rich analog feature set |
| FPU Support | Single-precision floating-point unit |
دليل تكوين أطراف STM32G491CCU6 7 x 7 mm
تكوين الأطراف لـ STM32G491CCU6 (حزمة 7 x 7 mm). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ STM32G491CCU6.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
STM32G491CCU6 مناسب لـ 6 التطبيقs: Digital Power Conversion, Motor Control Systems, Industrial Sensor Hubs, Condition Monitoring Equipment, Communication Nodes, Embedded Measurement Instruments.
Digital Power Conversion
The STM32G491CCU6 is well suited to digital power conversion because its 170 MHz Arm Cortex-M4F core combines single-precision floating-point arithmetic with a dedicated math accelerator. These resources accelerate proportional-integral-derivative calculations, transforms, and control-loop mathematics while the rich analog feature set supports closed-loop supervision. The 256 KB of Flash accommodates control firmware, parameter tables, and fault logs, while the compact 48-pin UFQFPN package helps reduce board area in dense converter designs. Engineers should select the exact timer, ADC, comparator, and protection resources required by the power stage, then validate control bandwidth and analog performance under worst-case supply and temperature conditions.
موصى به
Motor Control Systems
The STM32G491CCU6 supports compact motor-control systems that require deterministic computation, analog feedback, and multiple timing resources. Its Cortex-M4F core executes current and speed-control loops at up to 170 MHz, with hardware floating-point and a math accelerator reducing the computational burden of transformation and current-regulation mathematics. The family’s rich analog resources can support sensing and control functions close to the processor, reducing signal-chain complexity. In a motor-control board, engineers must still map timers, encoder or sensor interfaces, protection inputs, and analog channels to the exact package and verify timing margins for the selected PWM frequency and control loop.
موصى به
Industrial Sensor Hubs
The STM32G491CCU6 is appropriate for industrial sensor hubs that consolidate measurements, perform real-time filtering, and forward processed data over a communications interface. Its 170 MHz performance allows the processor to handle sampling, digital filtering, diagnostics, and protocol servicing without relying on a separate processor. The 256 KB Flash provides space for application firmware, calibration data, and parameter storage, while the family’s analog capabilities suit industrial measurement systems. Deployment planning should account for the available package pins, communication transceivers outside the MCU, sensor signal levels, isolation requirements, and environmental testing. The manufacturer’s ADC characteristics and application guidance should anchor the analog design.
موصى به
Condition Monitoring Equipment
The STM32G491CCU6 can serve as the processing center in vibration, temperature, pressure, and acoustic condition-monitoring equipment. The high-performance Cortex-M4F core supports digital filters, feature extraction, and event classification at 170 MHz, while the math accelerator assists transform-oriented algorithms and the 256 KB Flash holds firmware and reference data. Its rich analog feature set supports integration with sensor front ends and allows intelligent sensing functions to remain close to the acquisition circuitry. For deployment, engineers should establish acquisition latency, dynamic-range, anti-aliasing, and storage requirements before assigning ADC channels. Watchdog behavior, brownout handling, and diagnostic routines should be included in the firmware and board-validation plan.
موصى به
Communication Nodes
The STM32G491CCU6 can act as the host controller in a compact industrial or embedded communication node. At 170 MHz, it can service protocol stacks alongside real-time control or monitoring tasks, and its single-precision FPU supports modem-style numerical processing. The 48-pin UFQFPN package offers a compact footprint while exposing GPIO and peripheral resources for external transceivers and status interfaces. Firmware design should reserve adequate processing margin for the selected UART, SPI, USB, or other interface and its DMA configuration. Board-level considerations include transceiver supply domains, signal conditioning, termination, isolation, and routing. The exact peripheral mix and pin availability must be checked against the manufacturer pin table for the U6 ordering code.
موصى به
Embedded Measurement Instruments
The STM32G491CCU6 is suitable for embedded measurement instruments that combine signal acquisition, calibration, numerical processing, and a local communications interface. Its 170 MHz Cortex-M4F core provides enough throughput for filtering, numerical correction, and real-time control, while the rich analog feature set helps consolidate the measurement front end. With 256 KB of Flash, the device can store operating firmware, configuration parameters, and calibration workflows without immediately requiring external memory. Designers should define accuracy and latency targets first, then use the datasheet’s ADC and timer characteristics to select gains, sampling rates, and excitation timing. Calibration storage, reference-clock stability, input protection, and analog layout remain essential qualification items.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ STM32G491CCU6 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | STM32G491CEU6 | STM32G491CBU6 |
|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-pin UFQFPN (7 x 7 mm) | 48-pin UFQFPN (7 x 7 mm) | 48-pin UFQFPN (7 x 7 mm) |
| Processor Core | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F |
| Maximum CPU Frequency | 170 MHz | 170 MHz | 170 MHz |
| Flash Memory | 256 KB | 512 KB | 128 KB |
| Family Maximum SRAM | 112 KB | 112 KB family maximum | 112 KB family maximum |
| Math Accelerator | Present | Present | Present |
| Analog Features | Rich analog feature set | Rich analog feature set | Rich analog feature set |
| Operating Voltage References | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V |
أبرز الفروقات
- Balanced embedded performance and memory density (مقابلSTM32G491CBU6)
- Lower Flash footprint than the higher-density option (مقابلSTM32G491CEU6)
- Compact 7 x 7 mm integration (مقابلSTM32F401CCU6)
ملاحظات التصميم
Place all required decoupling capacitors directly beside their associated STM32G491CCU6 supply pins, using the shortest possible ground return paths. Connect the UFQFPN exposed pad to the prescribed copper and thermal structure rather than treating it as an unconnected mechanical feature. Validate the land pattern against the manufacturer package drawing, inspect the paste-release behavior of the 0.5 mm pitch footprint, and account for the exposed-pad soldering process during assembly qualification.
Define the complete power tree before assigning analog and digital functions to the 1.8 V, 2.5 V, and 3.3 V operating references. Separate sensitive analog returns from switching and high-current paths where the board architecture permits, and place bulk capacitance near the power source while retaining high-frequency decoupling at the device. Check startup sequencing, brownout behavior, maximum supply transitions, and the relationship between clock frequency and operating voltage in the manufacturer datasheet.
Route high-speed clocks, communications signals, and sensitive analog inputs away from switching nodes and fast-switching return currents. Use a continuous ground reference where possible, avoid splitting analog and digital ground without a careful return-current strategy, and match impedance according to the selected interface. The compact 48-pin package provides limited routing escape options, so assign pins early and confirm that the selected timer channels, ADC inputs, and debug functions are reachable without compromising analog signal integrity.
A pin-compatible alternative is not automatically a production-approved substitution. Review startup files, option bytes, firmware memory assumptions, peripheral availability, electrical limits, and package-specific exposed-pad requirements. The STM32G491CEU6 offers more Flash than the STM32G491CCU6, while the STM32G491CBU6 offers less; either change can affect linker placement, boot configuration, and firmware maintenance. Revalidate production programming and boundary-condition tests after substitution.
معلومات الامتثال
Compliance declarations are not stated in the cited product listings or manufacturer datasheet excerpt. Confirm the current declarations for the exact STM32G491CCU6 ordering code with the manufacturer.