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STM32L052C8T6

Cortex-M0+ 32MHz ultra-low-power MCU, 64KB Flash, USB FS, 0.4uA standby, LQFP-48

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Manufacturer Part：

STM32L052C8T6

Package：

LQFP-48 (7.00 x 7.00 x 1.40 mm, 0.50mm pitch)

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Description

Product Overview

The STM32L052C8T6 from STMicroelectronics is an ultra-low-power Cortex-M0+ MCU with 64KB Flash, 8KB SRAM, and 12-bit ADC in LQFP-48. With multiple low-power modes down to 0.4uA, it targets battery-powered and energy-harvesting applications.

Key Specifications

Core ARM Cortex-M0+, 32 MHz
Flash Memory 64 KB
SRAM 8 KB + 2KB EEPROM
ADC 12-bit, 1.14 MSPS
DAC 1 x 12-bit
Communication USB 2.0 FS, 2x USART, 2x SPI, 2x I2C
Supply Voltage 1.65 V to 3.6 V
Standby Current 0.4 uA (typical)
Operating Temperature -40C to +85C

Features

  • 0.4uA standby current with RTC for ultra-long battery life
  • 64KB Flash with 8KB SRAM and 2KB true EEPROM emulation
  • USB 2.0 full-speed device with crystal-less USB oscillator
  • 12-bit ADC at 1.14MSPS and 12-bit DAC for analog processing
  • Cortex-M0+ core at 32MHz for energy-efficient processing
  • Multiple low-power modes: Sleep, Stop, Standby with fast wake-up

Applications

  • Wearable devices and fitness trackers with 0.4uA standby
  • Wireless sensor nodes and energy-harvesting systems
  • Portable medical devices with USB connectivity
  • Smart meters and building automation sensors

The STM32L052C8T6 from STMicroelectronics is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M0+ core operating at up to 32MHz in an LQFP-48 package. The device is part of the STM32L0 series, specifically optimized for battery-powered and energy-harvesting applications with multiple low-power modes. In Standby mode with RTC, the device draws only 0.4uA typical, enabling years of operation from a coin cell. In Stop mode with RTC, current is approximately 0.8uA with full SRAM and register retention and 3.5us wake-up time. The 64KB Flash and 8KB SRAM provide adequate code and data space for typical low-power applications. An additional 2KB of true EEPROM emulation area allows storage of calibration data and configuration without Flash wear concerns. The 12-bit ADC at 1.14MSPS with hardware oversampling supports precise analog measurement. A 12-bit DAC enables analog waveform generation. USB 2.0 full-speed device capability with internal 48MHz crystal-less oscillator simplifies USB design. Communication interfaces include two USARTs, two SPIs, and two I2Cs for sensor and actuator connectivity.

The STM32L052C8T6 operates on the ARM Cortex-M0+ core with optimized power management. (1) Core: The Cortex-M0+ is a 2-stage pipeline processor optimized for low power and low gate count, executing Thumb instructions. The 32MHz maximum clock provides adequate processing for sensor acquisition, data processing, and communication protocols. (2) Power Modes: Run mode operates at full speed with all peripherals. Sleep mode stops the CPU but keeps peripherals running. Low-Power Run mode reduces the CPU clock to below 2MHz with the internal MSI oscillator, drawing approximately 60uA/MHz. Stop mode halts all clocks and the CPU, retaining SRAM and registers with sub-microamp current. Standby mode powers down everything except the RTC, backup registers, and wakeup logic, drawing 0.4uA. (3) Voltage Scaling: Three voltage ranges (Range 1/2/3) scale the internal regulator output to match the required performance, reducing power at lower clock speeds. (4) USB: The internal 48MHz oscillator eliminates the external crystal for USB, saving BOM cost and PCB space.

Pin Group Count Function
PORTA 12 GPIO, USART, SPI, I2C, USB, ADC, DAC, TIM
PORTB 12 GPIO, USART, SPI, I2C, TIM, ADC
PORTC 8 GPIO, USART, TIM, ADC
PORTD 2 GPIO
VDD/VSS Multiple Power supply and ground
VBAT 1 Battery backup for RTC
NRST 1 Reset (active low)
BOOT0 1 Boot mode selection
  • Wearable devices and fitness trackers with 0.4uA standby and USB
  • Wireless sensor nodes and energy-harvesting systems at 60uA/MHz
  • Portable medical devices with USB FS and 12-bit ADC/DAC
  • Smart meters and building automation sensors with EEPROM emulation
Manufacturer Part Number Package Notes
ST STM32L052K8T6 LQFP-32 Same, 32-pin smaller
ST STM32L072CZT6 LQFP-48 32MHz, 128KB, USB FS
Silicon Labs EFM32TG11B120F48G-EQFP48 QFP-48 Gecko, 48MHz, low power
Nordic nRF52810-QCAA QFN-48 Cortex-M4, BLE 5.0
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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