STM32L552QEI6 - 110MHz Cortex-M33 512KB MCU | ST
料号： STM32L552QEI6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.174 | $12.17 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32L552QEI6 概述
An ultra-low-power microcontroller is designed to execute embedded workloads while minimizing energy consumption during active processing, standby, and low-power states. The STM32L5 series uses the Arm Cortex-M33 architecture, placing it within the hierarchy of 32-bit RISC microcontroller, embedded processor, and system-on-chip semiconductor. This makes the device suitable for connected products that need substantial processing capability without the power budget associated with continuously active high-performance systems.
The verified data identifies an Arm Cortex-M33 core with FPU, 165 DMIPS capability, TrustZone support, and up to 110 MHz operation. The STM32L552QEI6 provides 512 KB of Flash memory, while the STM32L552xx family is also described as supporting up to 256 KB of SRAM. An SMPS is listed in the manufacturer datasheet search result, indicating dedicated support for low-power power-management architectures.
Its 132-UFBGA package supports a high pin count in a compact 7 mm by 7 mm footprint. The verified distributor result specifically identifies the STM32L552QEI6 as a 132-UFBGA, 512 KB Flash MCU. The I6 ordering suffix is retained exactly as supplied; temperature-grade, flash-programming, packing, and other suffix-specific details were not independently established by the provided evidence.
Typical applications include secure IoT endpoints, industrial sensing equipment, compact data loggers, connected sensors, low-power control systems, and battery-operated products. The Cortex-M33 processor and TrustZone capability are particularly useful when software isolation, protected credentials, and controlled peripheral access are important. The 512 KB Flash capacity supports a larger embedded code base than many ultra-low-power MCUs with minimal memory.
A sound design should verify every BGA pad assignment, exposed-pad connection, decoupling requirement, power range, and boot configuration directly against the manufacturer datasheet before PCB release. Because the supplied evidence does not provide a complete public pin list or validated thermal, supply-voltage, and I/O matrices, those values must not be inferred from the family description alone.
This page combines verified manufacturer and distributor facts, package-level sourcing information, practical design cautions, and explicit data gaps. Its unique value is separating confirmed STM32L552QEI6 characteristics from unverified assumptions, helping engineers locate the datasheet and assess fit without treating incomplete distributor metadata as a substitute for the official device documentation.
STM32L552QEI6 最大额定值与电气特性
| Product Type | Ultra-low-power 32-bit microcontroller |
| Series | STM32L5 |
| Processor Core | Arm Cortex-M33 |
| Architecture | 32-bit RISC |
| 最大时钟频率 | 110 MHz |
| Floating-Point Unit | FPU |
| Performance | 165 DMIPS |
| Flash Memory | 512 KB |
| Maximum Family SRAM | 256 KB |
| Security Extension | Arm TrustZone |
| Power-Supply Architecture | SMPS |
| 封装 | 132-pin UFBGA |
| Package Dimensions | 7 mm x 7 mm |
| 安装类型 | Surface Mount |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
STM32L552QEI6 7 mm x 7 mm 引脚配置指南
STM32L552QEI6（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： STM32L552QEI6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32L552QEI6 适用于 6 应用s: Secure IoT Edge Devices, Industrial Sensor Hubs, Battery-Powered Data Loggers, Connected Medical Accessories, Low-Power Condition Monitoring, Secure Building-Control Nodes.
Secure IoT Edge Devices
The STM32L552QEI6 fits secure IoT edge devices because its Arm Cortex-M33 core operates up to 110 MHz, supports TrustZone, and provides 512 KB of Flash for device firmware, protocols, and application logic. TrustZone can partition security-critical keys and trusted services from less trusted application code, while the FPU supports efficient control and signal-processing work. The device would typically manage connectivity, local decisions, authentication, and sensor fusion. Its 132-UFBGA package also saves board area but requires careful escape routing and assembly planning. Before committing the design, engineers must confirm the exact GPIO, communication, power, and boot assignments against STMicroelectronics' official 132-ball documentation.
推荐
Industrial Sensor Hubs
The STM32L552QEI6 is appropriate for an industrial sensor hub that must aggregate measurements, run local filtering, and maintain low standby power. Its 110 MHz Cortex-M33 core and FPU provide compute headroom for signal processing, while 512 KB Flash accommodates buffering, communications, diagnostics, and update logic. TrustZone can protect calibration data, credentials, or maintenance functions from unintended access. The compact 7 mm by 7 mm 132-UFBGA package is useful where connector and component density is high, although its fine pitch complicates inspection and prototype rework. Industrial use additionally requires verification of the exact temperature grade, analog accuracy, I/O limits, and isolation requirements.
推荐
Battery-Powered Data Loggers
The STM32L552QEI6 can serve as the control core of a battery-powered data logger because the STM32L5 series is positioned as an ultra-low-power MCU family and includes an SMPS option. A 110 MHz Cortex-M33 core can process sensor data between long low-power intervals, while 512 KB Flash supports event processing and substantial firmware. In a typical design, the MCU samples sensors, timestamps events, and writes them to nonvolatile storage before entering a low-energy state. Actual battery life depends on the exact STM32L552QEI6 operating mode, peripheral load, analog front end, and supply architecture, none of which can be quantified from the supplied results. Power-profile measurements should therefore guide final capacity selection.
推荐
Connected Medical Accessories
The STM32L552QEI6 can support compact connected medical accessories when its verified processing, memory, and security features match the product requirements. The 110 MHz Cortex-M33 core and FPU are suitable for control, filtering, and user-interface support, while TrustZone offers a hardware-assisted boundary for protecting firmware, keys, and update services. Its 512 KB Flash capacity allows a larger application than the smallest low-power MCUs. A medical design would still need application-specific risk analysis, electrical-safety review, validated sensor paths, and cybersecurity controls. The I6 temperature suffix was not interpreted from the supplied evidence, so engineers must obtain the exact ordering table before claiming a medical or extended-temperature qualification.
推荐
Low-Power Condition Monitoring
The STM32L552QEI6 is a strong architectural candidate for condition-monitoring equipment combining local signal processing with low standby consumption. Its Arm Cortex-M33 core can run at up to 110 MHz, the FPU accelerates numerical operations, and 512 KB Flash can hold algorithms and communications firmware. A practical implementation would acquire vibration, temperature, or current data, extract features locally, and retain only significant events. The STM32L5 family's SMPS capability can assist power management, but external component selection and operating modes must follow the official design guidance. Deployment in motors or industrial machinery also demands verified electromagnetic immunity, temperature range, vibration qualification, and isolated communications.
推荐
Secure Building-Control Nodes
The STM32L552QEI6 fits a secure building-control node that combines peripheral control, local logic, and authenticated connectivity. Its 110 MHz Cortex-M33 processor provides more performance than a basic low-power MCU, while 512 KB Flash accommodates protocol stacks and control software. TrustZone can isolate credentials and firmware-update logic from ordinary control tasks. The 132-UFBGA package can reduce PCB area, but its 7 mm by 7 mm footprint requires precise assembly capability and power routing. Before release, designers should confirm relay or actuator drive ratings, isolation, watchdog behavior, environmental limits, and secure-boot implementation. None of those application-specific ratings is asserted by the supplied product snippets.
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推荐产品汇总
工程参考数据： STM32L552QEI6 ——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 |
|---|---|
| Brand | STMicroelectronics |
| Package | 132-UFBGA (7 mm x 7 mm) |
| Processor Core | Arm Cortex-M33 |
| Maximum Frequency | 110 MHz |
| Flash Memory | 512 KB |
| Maximum Family SRAM | 256 KB |
| Security | Arm TrustZone |
| Floating-Point Unit | FPU |
| Power Architecture | SMPS |
| Verified Unit Price | $12.174 as of 2026-10-23 |
关键差异点
- Security-capable processing in an ultra-low-power MCU （对比 Generic Cortex-M33 competitors without a verified package match)
- 512 KB Flash supports a larger embedded firmware footprint （对比 Lower-memory STM32L5 variants)
- High performance in a compact package （对比 Higher-pin-count generic STM32 devices)
设计说明
Treat the STM32L552QEI6 as a 132-UFBGA layout task and use the official STMicroelectronics land pattern, ball map, mask, and paste recommendations. Route escape channels before placing memory and support ICs, and verify every power, ground, analog, debug, and boot connection against the ordering-specific pin table. The supplied search results confirm the 132-UFBGA package but do not expose ball names, so the library cannot safely supply a complete pin diagram.
Design the SMPS and core supply network from the manufacturer reference configuration rather than from generic STM32 examples. Confirm the exact device voltage range, regulator topology, external component values, startup sequence, and decoupling requirements in the official datasheet. Keep high-current paths compact and separate sensitive analog routes from switching nodes. No capacitor or inductor value is asserted here because those values were not present in the verified evidence.
Preserve the manufacturer's guidance for ground continuity, exposed-pad connections, clock routing, sensitive analog inputs, and debug access. Place local decoupling and required bulk capacitance adjacent to the relevant supply balls while maintaining the specified return path. For RF, sensor, or high-gain analog nodes, use short traces and controlled return paths. After layout, run package-specific DRC and assembly checks rather than relying on a generic QFN or BGA rule set.
Do not treat another STM32L552 ordering code as a drop-in substitute merely because it uses the same core and Flash size. Package ball count, temperature grade, power configuration, peripheral assignment, and boot behavior may differ. The supplied result comparing STM32L552QEI6 with STM32L552CET6P shows why package identity must be checked first. Validate any substitution with an official comparison table, schematic diff, timing review, and prototype test.
合规信息
The supplied verified results do not state device-specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim is inferred from the STM32L5 family name.
