STM32L052K8T6 - 32MHz Cortex-M0+ 64KB MCU | STMicroelectronics
MPN: STM32L052K8T6 ✓ Hoạt độngSTM32L052K8T6 Tóm tắt
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripherals, and communication interfaces into one device. In the product hierarchy, the STM32L052K8T6 is an Arm Cortex-M0+ MCU, an STM32L0-series microcontroller, a 32-bit embedded controller, and an ultra-low-power semiconductor. It is suited to connected sensors, compact USB devices, industrial modules, and portable products requiring USB and serial peripherals.
The manufacturer product information identifies a 32 MHz operating frequency, 64KB organized as 64K x 8 Flash, a 32-bit architecture, and USB 2.0 crystal-less connectivity. Listed communication capabilities also include I2C and SPI. These features allow the device to move data between sensors, actuators, storage, and a USB host while retaining the low-power operating characteristics associated with the STM32L0 family.
STM32L052K8T6 integrates several embedded peripherals into a single 32-LQFP package. Its 64KB Flash provides program storage for control logic, communication firmware, and configuration data. The Cortex-M0+ architecture provides a compact instruction set suited to real-time embedded workloads, while the documented I2C and SPI interfaces support common industrial and consumer peripherals. USB 2.0 crystal-less operation is particularly relevant to designs that need direct connectivity without a separate external USB clock source.
Typical applications include low-power USB sensor nodes, compact data loggers, industrial condition-monitoring modules, building controls, and wearable or portable accessories. The 7 x 7 mm LQFP footprint is large enough for accessible manufacturing and inspection while remaining suitable for space-conscious boards. Firmware can collect sensor readings over I2C or SPI, store operational information in Flash, and communicate with a host through USB.
A primary design consideration is power-budget allocation across active, sleep, and shutdown operation. Firmware should disable unused peripherals, configure clock sources correctly, and select the lowest-energy mode compatible with wake-up requirements. Because USB clocking, external interfaces, and analog functions can affect current consumption, measure the complete assembled product under realistic traffic and environmental conditions rather than relying only on nominal processor activity.
This product page combines the manufacturer specifications with package, interface, application, replacement, and procurement guidance. It also distinguishes true same-footprint candidates from options that require package or firmware changes, helping engineers evaluate the STM32L052K8T6 for embedded USB, low-power sensing, and connected-control designs.
Bộ thay thế dễ dàng lắp đặt cho STM32L052K8T6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L052K8T6 (cùng hình factor và footprint) — khác nhau ở Package, Flash Memory, Product Type, Supply Voltage, Mounting Type.
STM32L052K6T6
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Xem tài liệu →STM32L071KBT6
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Xem tài liệu →STM32L052K8T6 Tỷ lệ tối đa & tính chất điện
| Product Type | 32-bit ultra-low-power microcontroller |
| CPU Core | Arm Cortex-M0+ |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 64KB (64K x 8) |
| Architecture | 32-bit |
| Operating Voltage | 3.3 V |
| USB Version | USB 2.0 |
| USB Clocking | Crystal-less |
| Serial Interface | I2C and SPI |
| Hộp | 32-LQFP (7 x 7 mm) |
| Số chân | 32 pins |
| Kiểu lắp đặt | Surface mount |
| Product Series | STM32L0 |
| Device Variant | STM32L052x6/8 |
Hướng dẫn cấu hình chân STM32L052K8T6 32-lqfp (7 x 7 mm)
Cấu hình chân cho STM32L052K8T6 (32-lqfp (7 x 7 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho STM32L052K8T6.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
STM32L052K8T6 phù hợp cho 6 Áp dụngs: USB Connected Sensor Node, Industrial Condition Monitoring, Portable Data Logger, USB Accessory Controller, Building Control Module, Wearable Health Accessory.
USB Connected Sensor Node
The STM32L052K8T6 fits compact USB sensor nodes because it combines a 32 MHz Arm Cortex-M0+ processor, 64KB of Flash, and USB 2.0 crystal-less connectivity in a 7 x 7 mm LQFP. A sensor may use I2C for environmental or acceleration data and SPI for a higher-bandwidth transducer, while the MCU filters readings and presents results through USB. Crystal-less USB operation can simplify the clock arrangement, although final USB timing, bus-power, and enumeration behavior must be validated on the completed board.
Được đề xuất
Industrial Condition Monitoring
The STM32L052K8T6 is suitable for industrial monitoring modules that must sample sensors, apply local filtering, and communicate results through a compact interface set. I2C supports common digital sensors, SPI accommodates higher-rate sensing or external transceivers, and the 32 MHz Cortex-M0+ core provides control capability without a larger package. Its ultra-low-power positioning supports battery-operated or duty-cycled equipment, but deployed systems should add the transient, isolation, surge, and environmental protection required by the installation site.
Được đề xuất
Portable Data Logger
The STM32L052K8T6 can serve as the control core of a portable data logger because its 64KB Flash stores firmware, configuration, and a limited event log while I2C and SPI connect to sensors and memory. The 32-bit Cortex-M0+ core handles timestamps, filtering, and data preparation, and the 7 x 7 mm LQFP leaves board area for a battery, storage device, and status interface. Duty-cycle the processor and communications peripherals between logging events to maximize battery life, and define write endurance requirements before using Flash for frequent event storage.
Được đề xuất
USB Accessory Controller
The STM32L052K8T6 is appropriate for a small USB accessory controller that needs protocol handling, configuration storage, and peripheral connectivity. Its crystal-less USB 2.0 capability can reduce external clock requirements, while the 64KB Flash supports device firmware and descriptors. The Cortex-M0+ core can manage enumeration, command processing, and status reporting. Designers should verify current consumption during enumeration and active transfers, confirm the exact USB electrical requirements, and reserve interface protection components for externally accessible connectors.
Được đề xuất
Building Control Module
The STM32L052K8T6 can support compact building-control modules that gather environmental or occupancy information and communicate with local controllers. I2C is suitable for common digital sensors, SPI supports faster sensors and radio or network components, and the 32 MHz Cortex-M0+ processor supports protocol and control tasks. The ultra-low-power family is useful in HVAC, lighting, and occupancy products where standby consumption matters. The finished module still needs appropriate isolation, surge protection, environmental qualification, and secure firmware-update procedures.
Được đề xuất
Wearable Health Accessory
The STM32L052K8T6 can support a compact wearable accessory that records sensor information and transfers it to a host through USB. The 64KB Flash accommodates embedded firmware and configuration, while I2C can connect to low-power biometric or inertial sensors and SPI can serve higher-rate components. The small 7 x 7 mm LQFP helps preserve wearable board area, although a wearable assembly may use a different package implementation. Battery life must be evaluated with the sensor, radio, and USB subsystem active rather than from processor specifications alone.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L052K8T6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
STM32L052K6T6 is the closest related same-brand candidate, but its memory and peripheral configuration must be checked before using an existing STM32L052K8T6 firmware image. STM32L071KBT6 is another related option for designs whose clock tree, memory, USB implementation, and pin multiplexing better match that device. No cross-manufacturer drop-in equivalent is confirmed here. Use the STM32L052K8T6 when its documented resources eliminate uncertainty and PCB, firmware, and qualification risks outweigh the benefit of pursuing a substitute.
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32L052K6T6 | STM32L071KBT6 |
|---|---|---|---|
| Package | 32-LQFP (7 x 7 mm) | 32-LQFP (7 x 7 mm) | 32-LQFP (7 x 7 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Compatibility Rating | 100% reference device | 70% cross-reference rating | 70% cross-reference rating |
Bảo phân biệt quan trọng
- Documented 64KB Flash configuration (vsSTM32L052K6T6)
- Crystal-less USB 2.0 connectivity (vsSTM32L071KBT6)
- Defined 32 MHz Cortex-M0+ operating platform (vsSTM32L052K6T6)
Ghi chú thiết kế
Build the firmware power budget around the product's actual operating states: active processing, USB enumeration or transfer, sensor polling, idle periods, and shutdown. Disable unused peripherals, avoid leaving clock trees active, and use the manufacturer's low-power modes with the shortest acceptable wake-up path. Verify current with the sensor, pull-up, indicator, and interface loads installed because the MCU alone may not dominate the assembled product's consumption.
Place the MCU, decoupling capacitors, oscillator components, and USB routing elements according to the manufacturer datasheet and reference layout. Keep the 32-LQFP footprint dimensions and pad geometry unchanged when creating a replacement board. Route USB differential pairs as a controlled pair with continuous reference-plane geometry, and separate USB data paths from sensitive analog or high-speed clock nets to limit coupling.
Assign every LQFP pin in the schematic library from the STM32L052x6/8 pin-description table rather than relying on generic STM32 names. Review reset, boot, debug, clock, supply, ground, and USB pins together before layout. This prevents a mechanically compatible substitution from becoming an electrically incompatible one when alternate functions differ between devices.
Do not treat a shared LQFP-32 footprint as sufficient proof of interchangeability. Confirm memory capacity, RAM, interrupt vectors, peripheral instances, USB clocking, pin multiplexing, electrical limits, startup behavior, and development-tool compatibility. A replacement may require bootloader, firmware, linker, and hardware-configuration changes even when the land pattern is unchanged.
Thông tin tuân thủ
The accessible manufacturer and distributor information does not state the requested compliance statuses. AEC-Q100 is not applicable because STM32L052K8T6 is an MCU rather than an automotive-qualified discrete component.