STM32L052R8T6 - 32MHz 64KB USB MCU | STMicroelectronics
Teilenummer: STM32L052R8T6 ✓ AktivSTM32L052R8T6 Übersicht
An ultra-low-power microcontroller is a semiconductor designed to complete control and connectivity tasks while minimizing energy consumption during active operation and low-power modes. In the product hierarchy, the STM32L052R8T6 is an MCU, an embedded processing IC, and a member of STMicroelectronics' STM32L0 family. Its compact package and USB interface make it suitable for devices that need firmware-driven control, data exchange, and low standby demand without requiring a higher-power application processor.
Key verified features include an ARM Cortex-M0+ core, 32-bit processing, operation up to 32 MHz, and 64 KB of programmable Flash. The integrated connectivity supports USB 2.0 operation without an external crystal, while the specified 2.5 V and 3.3 V operating voltages support conventional embedded supply environments. The STM32L052x6/8 family is positioned by STMicroelectronics as an ultra-low-power platform for connected, compact products.
The 64-LQFP package exposes substantially more I/O than smaller microcontroller packages, allowing designers to connect external sensors, displays, communication transceivers, and control interfaces without moving to a more complex device. At the same time, the Cortex-M0+ architecture keeps the MCU suitable for embedded control rather than demanding graphical or high-throughput workloads. Exact RAM, peripheral, timer, GPIO, and electrical limits are not present in the supplied excerpts and should be confirmed in the manufacturer datasheet.
Typical applications include USB-connected sensors, compact industrial controls, medical-device peripherals, battery-operated accessories, USB-to-data acquisition systems, and low-power monitoring equipment. The crystal-less USB capability can simplify connector-based products when the final board design and firmware satisfy STMicroelectronics' USB clocking requirements.
The main design consideration is package and firmware validation. Engineers should confirm the complete 64-pin assignment, USB impedance routing, decoupling, clocking, and peripheral configuration against the manufacturer documentation. This page combines verified distributor specifications, pricing context, same-family alternatives, and practical sourcing guidance that is not consolidated in a single manufacturer excerpt.
Drop-in-Alternativen für STM32L052R8T6 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit STM32L052R8T6 (gleiche Bauform und Footprint) – abweichend in ADC, Package, Supply Voltage Range.
STM32L053R8T6TR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
STM32L071R8T6
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM32L081R8T6
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM32L051R8T6
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM32L011R8T6
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
STM32L052R8T6 Grenzwerte & elektrische Eigenschaften
| Product Type | Ultra-low-power 32-bit microcontroller |
| CPU Core | ARM Cortex-M0+ |
| CPU Architecture | 32-bit |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 64 KB |
| Flash Organization | 64K x 8 bits |
| USB Interface | USB 2.0 crystal-less |
| Operating Voltage | 2.5 V / 3.3 V |
| Gehäuse | 64-LQFP, 10 x 10 mm |
| Montageart | Surface mount |
STM32L052R8T6 64-lqfp, 10 x 10 mm Pinbelegungsleitfaden
Pinbelegung für STM32L052R8T6 (64-lqfp, 10 x 10 mm-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für STM32L052R8T6.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
STM32L052R8T6 ist geeignet für 6 Anwendungs: USB-Connected Environmental Sensor, Compact Industrial Control Module, Battery-Operated Portable Accessory, Medical-Device Peripheral, USB Data-Acquisition Interface, USB Service and Configuration Port.
USB-Connected Environmental Sensor
The STM32L052R8T6 fits a USB-connected environmental sensor because its 32 MHz ARM Cortex-M0+ core can sample and process sensor data while the verified USB 2.0 crystal-less interface provides a direct device connection. With 64 KB of Flash, the MCU has sufficient space for firmware, USB descriptors, calibration logic, and communication routines when the final application remains compact. The 64-LQFP package also exposes more pins than small packages, allowing sensor, status, and interface connections to be consolidated. According to the STMicroelectronics product page, the STM32L052x6/8 family combines ultra-low-power operation with crystal-less USB connectivity. Final selection requires confirmation of ADC, low-power-mode, USB-suspend, and current-consumption specifications in the manufacturer datasheet.
Empfohlen
Compact Industrial Control Module
The STM32L052R8T6 is appropriate for a compact industrial control module when low power, deterministic embedded control, and USB service connectivity are priorities. Its 32-bit Cortex-M0+ core runs up to 32 MHz, providing useful control performance without the resource demand of an application processor, while 64 KB of Flash supports a focused control application. The 64-LQFP 10 x 10 mm package provides a generous pin count for inputs, outputs, communications, and status indication in a relatively small footprint. According to STMicroelectronics, the device is optimized as an ultra-low-power MCU. Engineers should verify extended-temperature requirements, GPIO limits, analog performance, watchdog behavior, and ESD ratings before using it in an industrial environment.
Empfohlen
Battery-Operated Portable Accessory
The STM32L052R8T6 suits a battery-operated portable accessory because STMicroelectronics positions the STM32L052x6/8 family as ultra-low-power, while the verified part combines a 32 MHz Cortex-M0+ core with 64 KB of Flash and USB 2.0 connectivity. A designer can use the MCU for local control, user-interface handling, and configuration transfer while minimizing the need for separate interface components. Its 64-LQFP package also provides sufficient I/O flexibility for buttons, indicators, and external sensors. According to the manufacturer product-page excerpt, crystal-less USB connectivity is available. Battery-life targets must still be validated against the exact low-power modes, wake-up timing, USB suspend behavior, and peripheral leakage available in the full datasheet.
Empfohlen
Medical-Device Peripheral
The STM32L052R8T6 can serve as the control MCU in a medical-device peripheral when the application requires USB connectivity and compact embedded processing but does not require a high-performance application processor. The verified 32-bit Cortex-M0+ core and 64 KB of Flash are suitable for peripheral control, status reporting, and firmware-managed interfaces. Its 64-LQFP package allows integration of buttons, indicators, sensors, and isolation or interface components without moving immediately to a very large package. According to the STMicroelectronics product page, the family supports ultra-low-power operation and USB 2.0 crystal-less connectivity. Medical use requires separate validation of electrical safety, applicable medical standards, ESD performance, firmware risk controls, and the complete operating-temperature range.
Empfohlen
USB Data-Acquisition Interface
The STM32L052R8T6 fits a small USB data-acquisition interface when the acquisition path requires a 32 MHz embedded core, 64 KB of Flash, and direct USB connectivity. It can manage sampling sequencing, configuration commands, and data transfer without a separate USB controller, while the 64-LQFP package offers multiple pins for analog front-end control, references, and status signals. According to the verified Mouser listing, the target is an ultra-low-power ARM MCU with 64 KB of Flash, a 32 MHz CPU, and USB. The exact ADC resolution, sample rate, input impedance, and USB throughput are not included in the supplied excerpts and must be verified before claiming suitability for precision acquisition.
Empfohlen
USB Service and Configuration Port
The STM32L052R8T6 is well suited to a USB service and configuration port because the verified USB 2.0 crystal-less feature can simplify device connection, while the 32 MHz Cortex-M0+ core performs command handling and configuration updates. The 64 KB of internal Flash provides storage for firmware and parameters, and the 64-LQFP package leaves ample I/O for a service connector, status LEDs, and control signals. According to the manufacturer description, connectivity is integrated into the ultra-low-power STM32L052x6/8 architecture. Designers should still validate USB electrical compliance, cable-length behavior, power sourcing rules, boot modes, and firmware update security against the complete STMicroelectronics documentation.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für STM32L052R8T6 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | STM32L053R8T6TR | STM32L071R8T6 | STM32L081R8T6 | STM32L051R8T6 |
|---|---|---|---|---|---|
| Package | 64-LQFP (10 x 10 mm) | 64-LQFP (10 x 10 mm) - same family footprint | 64-LQFP (10 x 10 mm) - same family footprint | 64-LQFP (10 x 10 mm) - same family footprint | 64-LQFP (10 x 10 mm) - same family footprint |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| CPU Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Low-Power Positioning | Ultra-low-power MCU | Ultra-low-power STM32L0 family | Ultra-low-power STM32L0 family | Ultra-low-power STM32L0 family | Ultra-low-power STM32L0 family |
Wichtigste Unterscheidungsmerkmale
- Verified crystal-less USB connectivity in the same ultra-low-power MCU family (vs. STM32L051R8T6)
- 64 KB of Flash in a 64-LQFP package (vs. STM32L011R8T6)
- 32 MHz Cortex-M0+ performance with 64-LQFP I/O capacity (vs. STM32L053R8T6TR)
Designhinweise
Route the USB differential pair as a short, continuous 90-ohm differential path on the top layer with a continuous ground reference, avoiding test pads, stubs, and plane splits wherever possible. Place the USB connector, ESD protection, decoupling capacitors, and MCU pins in the order required by the USB signal path. Because the target supports crystal-less USB 2.0, preserve the layout flexibility required by the manufacturer's internal-clock and tolerance guidance rather than assuming every crystal-less design is electrically interchangeable.
Define the power architecture before placing the MCU decoupling network. The verified source identifies 2.5 V and 3.3 V operating voltages, but the complete absolute maximum ratings and internal supply requirements are not present in the supplied excerpts. Confirm the MCU core and I/O voltage domains, regulator tolerance, startup sequencing, and USB bus-powered current limit in the manufacturer datasheet. Place required bulk and high-frequency capacitors close to their associated supply pins and check the resulting ripple against the selected load and USB operating mode.
Do not treat a shared 64-LQFP outline as proof of an identical MCU replacement. The alternatives in this page are same-family STMicroelectronics candidates, but RAM, Flash, USB, timer, GPIO, low-power, and peripheral assignments can differ. Review the manufacturer pin table, electrical characteristics, errata, and migration documentation for both devices. Firmware may also require changes when moving between STM32L0 members, even when the PCB land pattern remains usable.
The 64-LQFP package is larger and more serviceable than a compact QFN, but package size alone does not establish thermal performance. Base the junction-temperature estimate on the actual dissipation, package thermal resistance, board copper area, airflow, and ambient temperature listed in the manufacturer documentation. For USB-powered accessories, calculate the worst-case regulator loss and connector-current budget first. Estimated values must be recalculated with the selected PCB because exposed pad, via pattern, and copper pour can materially change junction temperature.
Compliance-Informationen
The supplied manufacturer and distributor excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than assumed.