STMicroelectronics STM32L031K6U6TR

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L0
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor ARM® Cortex®-M0+
Core Size 32-Bit Single-Core
Speed 32MHz
Connectivity I2C, IrDA, LINbus, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O 27
Program Memory Size 32KB (32K x 8)
Program Memory Type FLASH
EEPROM Size 1K x 8
RAM Size 8K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 10x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-UFQFPN (5x5)
Package / Case 32-UFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L031K6U6TR is an ultra-low-power ARM Cortex-M0+ microcontroller from STMicroelectronics. It runs at 32MHz with 32KB flash and 8KB RAM, operating from 1.8V to 3.6V. Housed in a 32-UFQFN package, it integrates DMA, PWM, WDT, and brown-out reset, making it ideal for compact, energy-conscious IoT and portable applications.

  • Ultra-low-power Cortex-M0+ core extends battery life in portable devices.
  • Compact UFQFN package with exposed pad enables dense PCB layouts and better thermal performance.
  • DMA controller offloads CPU, improving throughput for sensor data streaming.
  • Wide voltage range (1.8V-3.6V) supports single-cell battery operation.

IoT Sensor Nodes

1.8V-3.6V operation and 32MHz Cortex-M0+ enable battery-powered environmental monitoring with low active current.

Wearable Health Monitors

UFQFN package (3x3mm) and low-power modes suit compact fitness bands tracking heart rate and motion.

Smart Home Controllers

DMA and PWM support dimming and motor control in smart blinds or thermostats, with brown-out detection for stable operation.

Portable Medical Devices

32KB flash stores calibration data; 8KB RAM handles real-time signal processing for glucose meters or pulse oximeters.

Industrial Sensor Interfaces

Exposed pad aids heat dissipation in 4-20mA loop transmitters, while DMA reduces CPU load for continuous ADC sampling.

Battery Management Systems

Low voltage threshold (1.8V) allows deep discharge monitoring in single-cell Li-ion packs.

Q: What core does it use?
A: ARM Cortex-M0+ at 32MHz, offering low-power efficiency.
Q: What is the package?
A: 32-UFQFN with exposed pad for thermal management.
Q: Does it support DMA?
A: Yes, with DMA for efficient peripheral data transfer.
Q: What is the RAM size?
A: 8KB, sufficient for lightweight RTOS or bare-metal apps.
Base Product Number : STM32L031K6
32-bit MCU 32KB Flash 32MHz 8KB RAM ARM Cortex-M0+ DMA IoT Low Power PWM STM32L0 UFQFN-32 Wearable
Q: What core does it use?
A: ARM Cortex-M0+ at 32MHz, offering low-power efficiency.
Q: What is the package?
A: 32-UFQFN with exposed pad for thermal management.
Q: Does it support DMA?
A: Yes, with DMA for efficient peripheral data transfer.
Q: What is the RAM size?
A: 8KB, sufficient for lightweight RTOS or bare-metal apps.