STM32L451VCI6 - 80MHz 256KB MCU for IoT | STMicroelectronics
MPN: STM32L451VCI6 ✓ نشطSTM32L451VCI6 نظرة عامة
An ultra-low-power microcontroller is a semiconductor designed to perform computing and control tasks while minimizing energy consumption during active operation, sleep, and standby periods. The STM32L4 family belongs to the embedded MCU hierarchy, combining an Arm Cortex-M4 processor core, embedded Flash, SRAM, analog peripherals, communications interfaces, and low-power management in one device. This integration reduces component count and supports compact, energy-conscious embedded systems.
Key device attributes include an Arm Cortex-M4 core with FPU, 80 MHz maximum operating frequency, 256 KB of embedded Flash, and a 100-UFBGA package measuring 7 x 7 mm. The family-level datasheet identifies performance up to 100 DMIPS and device options up to 512 KB of Flash and 160 KB of SRAM. Analog and audio capabilities make the STM32L451 series relevant to low-power sensing, industrial control, connected equipment, and embedded audio designs.
The Cortex-M4 architecture provides 32-bit processing and a floating-point unit for control loops and signal-processing tasks. Its 80 MHz operating rate gives applications more compute headroom than lower-frequency Cortex-M devices while the ultra-low-power design target supports battery-operated and duty-cycled products. The exact SRAM, peripheral complement, voltage range, and power figures for this ordering code require confirmation from the manufacturer ordering information.
Typical applications include connected sensor nodes, industrial monitoring equipment, low-power instrumentation, digital audio control, and compact embedded control systems. Designers can use the Cortex-M4 core for protocol handling, real-time control, and peripheral coordination, while the family’s analog and audio features support mixed-signal products that require both computation and signal acquisition.
A critical design consideration is package-level planning. The STM32L451VCI6 uses a compact 100-UFBGA footprint with fine-pitch balls, requiring a PCB with suitable solder mask, pad, and assembly-process capability. Designers should also verify the exact GPIO assignments, power pins, decoupling requirements, and peripheral multiplexing against the manufacturer datasheet before schematic capture or PCB release.
بدائل مباشرة لـ STM32L451VCI6 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
STM32L451VCT6
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STM32L451VBT6
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STM32L451VDT6
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STM32L451VET6
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STM32L451VHT6
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STM32L451VCI6 الحدود القصوى والخصائص الكهربائية
| Product Type | 32-bit ultra-low-power microcontroller |
| Processor Core | Arm Cortex-M4 with FPU |
| Maximum CPU Frequency | 80 MHz |
| Architecture | 32-bit RISC |
| Family Performance | Up to 100 DMIPS |
| Target Device Flash Memory | 256 KB |
| Maximum Family Flash Memory | Up to 512 KB |
| Maximum Family SRAM | Up to 160 KB |
| العلبة | 100-UFBGA, 7 x 7 mm |
| نوع التركيب | Surface Mount |
| Analog Capability | Analog peripherals |
| Audio Capability | Audio features |
| DFSDM Support | DFSDM |
دليل تكوين أطراف STM32L451VCI6 100-ufbga, 7 x 7 mm
تكوين الأطراف لـ STM32L451VCI6 (حزمة 100-ufbga, 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 STM32L451VCI6.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
STM32L451VCI6 مناسب لـ 6 التطبيقs: Industrial Sensor Node, Battery-Powered IoT Device, Embedded Audio Controller, Low-Power Data Acquisition System, Connected Monitoring Equipment, Compact Embedded Control System.
Industrial Sensor Node
The STM32L451VCI6 fits compact industrial sensing nodes that require an 80 MHz Cortex-M4 core with FPU, 256 KB of Flash, and analog capability in a 7 x 7 mm package. The processor can handle sensor acquisition sequencing, local filtering, digital compensation, and communications while the STM32L4 family’s ultra-low-power positioning supports duty-cycled operation. A typical implementation would place the MCU beside a precision sensor, connect the analog signals to the appropriate ADC inputs, and retain operational data in local Flash between reporting intervals. The principal design constraint is the fine-pitch 100-UFBGA land pattern, which requires assembly-process-qualified PCB geometry and careful thermal design around the microcontroller.
موصى به
Battery-Powered IoT Device
The STM32L451VCI6 is appropriate for battery-powered IoT products because it combines an efficient ultra-low-power family architecture with an 80 MHz Arm Cortex-M4 processor and 256 KB of Flash. That processing capacity allows local wake-up processing, sensor filtering, and protocol-frame preparation without relying on a higher-performance processor continuously. The device can support a duty-cycled design in which the MCU remains in a low-power state between measurements and wakes to process new data. Battery-life estimates should use the exact low-power-mode currents and wake-up timing from the manufacturer documentation because those device-specific values were not present in the supplied excerpts.
موصى به
Embedded Audio Controller
The STM32L451VCI6 can serve as the control processor in a compact embedded audio product because the STM32L451xx family combines Cortex-M4 floating-point processing with audio features. The 80 MHz core can manage control state, digital filtering, user input, and peripheral configuration, while the device’s 256 KB of Flash provides space for firmware and fixed audio data. In a typical design, the MCU configures an external codec or digital audio interface and applies real-time signal-control functions without occupying a separate high-power processor. Exact audio-interface availability, clocking requirements, and package-level pin assignments must be confirmed for the exact STM32L451VCI6 configuration before schematic completion.
موصى به
Low-Power Data Acquisition System
The STM32L451VCI6 is well matched to low-power data-acquisition systems that combine analog measurement with local digital processing. Its 256 KB of embedded Flash supports a dedicated firmware image, while the Arm Cortex-M4 FPU accelerates filtering and calibration calculations at the verified 80 MHz maximum frequency. The STM32L4 family’s analog capability supports measurement-oriented designs, and the compact 100-UFBGA package preserves board area when several sensing channels are integrated. A practical implementation would use the MCU to control the analog front end, convert readings, retain calibrated results, and transmit selected data. ADC accuracy, reference quality, input filtering, and the unverified exact converter specification must be established from the full datasheet.
موصى به
Connected Monitoring Equipment
The STM32L451VCI6 supports connected monitoring equipment where local control and communications must coexist in a compact, energy-conscious design. The 80 MHz Cortex-M4 core provides enough performance for protocol handling, state management, data logging, and real-time control, while the STM32L4 family is positioned for low-power operation. Its 256 KB of Flash can hold application firmware and configuration data, and its package occupies only 7 x 7 mm before routing and thermal allowances. In a network-connected product, the MCU could supervise a sensor, local user interface, and communications interface, then enter a reduced-power state during idle periods. Ethernet use is not implied by this part; any network peripheral must be confirmed from the exact device data.
موصى به
Compact Embedded Control System
The STM32L451VCI6 offers a balanced solution for compact embedded control systems requiring more computation than a basic 8-bit or low-clock-rate MCU. The 80 MHz Arm Cortex-M4 with FPU can execute real-time control logic, manage multiple peripherals, and provide a modern software-development environment. With 256 KB of Flash and a 7 x 7 mm 100-UFBGA package, it supports space-constrained products without moving to a larger module. Designers can use the MCU for motor, thermal, or process-control functions where deterministic timing and local diagnostics matter. The exact timers, ADC channels, operating voltage, pin mapping, and power-loss behavior must be checked against the manufacturer documentation before assigning critical control functions.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ STM32L451VCI6 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | STM32L451VCT6 | STM32L451VBT6 | STM32L451VDT6 | STM32L451VET6 | STM32L451VHT6 |
|---|---|---|---|---|---|---|
| Package | 100-UFBGA (7 x 7 mm) | 100-UFBGA (7 x 7 mm) | 100-UFBGA (7 x 7 mm) | 100-UFBGA (7 x 7 mm) | 100-UFBGA (7 x 7 mm) | 100-UFBGA (7 x 7 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Processor Core | Arm Cortex-M4 with FPU | Arm Cortex-M4 with FPU | Arm Cortex-M4 with FPU | Arm Cortex-M4 with FPU | Arm Cortex-M4 with FPU | Arm Cortex-M4 with FPU |
| Maximum CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Performance | Family up to 100 DMIPS | Family up to 100 DMIPS | Family up to 100 DMIPS | Family up to 100 DMIPS | Family up to 100 DMIPS | Family up to 100 DMIPS |
| Product Family | STM32L451xx ultra-low-power MCU | STM32L451xx ultra-low-power MCU | STM32L451xx ultra-low-power MCU | STM32L451xx ultra-low-power MCU | STM32L451xx ultra-low-power MCU | STM32L451xx ultra-low-power MCU |
| Special Features | Analog, audio, and DFSDM references | STM32L451 family analog and audio capability | STM32L451 family analog and audio capability | STM32L451 family analog and audio capability | STM32L451 family analog and audio capability | STM32L451 family analog and audio capability |
أبرز الفروقات
- Verified compact 256 KB Flash configuration (مقابلSTM32L451VBT6)
- 80 MHz Cortex-M4 with FPU (مقابلSTM32L451VCT6)
- Same-family pin and package continuity (مقابلSTM32L451VDT6)
- Ultra-low-power STM32L4 positioning with analog and audio support (مقابلSTM32G030F6P6)
ملاحظات التصميم
The 100-UFBGA package requires an assembly-qualified 7 x 7 mm land pattern with the exact ball pitch and pad geometry specified by STMicroelectronics. Do not derive the footprint from a generic UFBGA library. Confirm the pin map, exposed thermal and power-ball requirements, solder-mask definition, and paste stencil thickness against the manufacturer package drawing. Because the verified excerpts do not provide the complete pin table, schematic and layout release should be gated on a direct comparison with DM00340475.
Plan the power tree around the exact device supply-voltage range, internal regulator arrangement, power-ball connections, and decoupling requirements listed in the manufacturer datasheet. Place required input and bulk capacitors directly beside their associated supply pins, with a short return path and minimal loop area. Exact capacitance, voltage bias, ESR, and package recommendations were not included in the supplied excerpts, so the BOM must use only values confirmed by ST’s power-supply and decoupling guidance.
Separate sensitive analog inputs, debug interfaces, and communications from high-current switching or clock-generating circuitry. Use a compact grounding strategy that gives analog returns a low-impedance path without creating loops through digital return currents. If RF, audio, or high-speed serial signals are present, establish controlled impedance and return paths based on the actual interface specification. The MCU’s 80 MHz core can make edge-rate control important even though its power rails may operate at much lower voltages.
Do not treat every STM32L451 VC suffix as automatically interchangeable. Verify Flash density, SRAM, temperature range, package, qualification status, and all reused pins before substituting one ordering code for another. Boot configuration, debug access, oscillator pins, supply balls, and peripheral multiplexing can constrain a mechanical replacement even when the BGA ball count and package dimensions match. Record the exact MPN on the BOM and require supplier traceability to avoid unintended density or temperature-grade changes.
معلومات الامتثال
The supplied verified excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from general STM32 family policy.
