STMicroelectronics STM32L031G6U7S

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L0
Packaging Tray |
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 23
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) 1.65V ~ 3.6V
Data Converters A/D 10x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 28-UFQFPN (4x4)
Package / Case 28-UFQFN
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L031G6U7S from STMicroelectronics is an ultra-low-power ARM Cortex-M0+ microcontroller. It operates from 1.65V to 3.6V, making it ideal for energy-efficient designs. With 32KB flash and 8KB RAM, it offers a balanced feature set for cost-sensitive applications. The 28-UFQFN package saves board space while providing robust performance at 32MHz. Its integrated peripherals include PWM, DMA, and brown-out detection, ensuring reliable operation in demanding environments.

  • Ultra-low power consumption: Extends battery life in portable devices due to 1.65V operation and optimized sleep modes.
  • Compact package: 28-UFQFN enables miniaturized designs for space-constrained applications.
  • Wide temperature range: -40°C to 105°C ensures reliability in harsh industrial environments.
  • Rich analog features: Integrated comparators and ADC reduce external component count.
  • Robust security: Hardware CRC and unique ID support secure firmware updates.

Battery-Powered IoT Sensors

The low 1.65V minimum supply voltage and multiple low-power modes make it perfect for wireless sensor nodes that need to run for years on coin cells.

Portable Medical Devices

With a wide temperature range and DMA for efficient data handling, it supports continuous glucose monitors and pulse oximeters requiring reliable low-power operation.

Industrial Control Panels

The PWM timers and WDT ensure robust operation in noisy environments, suitable for motor control and process automation.

Smart Home Automation

Its small 28-UFQFN package and rich analog features enable compact designs for smart thermostats and lighting controllers.

Wearable Fitness Trackers

The Cortex-M0+ core at 32MHz provides enough processing for activity tracking while maintaining ultra-low power consumption.

Automotive Aftermarket Accessories

Operating from -40°C to 105°C, it can handle under-hood sensors and cabin control modules.

Q: What is the operating voltage range of the STM32L031G6U7S?
A: It operates from 1.65V to 3.6V, ideal for battery-powered devices.
Q: What core does this MCU use?
A: It uses the ARM Cortex-M0+ core running at up to 32MHz.
Q: How much flash and RAM does it have?
A: It has 32KB flash and 8KB RAM.
Q: What package is available?
A: It comes in a 28-UFQFN package.
Q: What are typical applications?
A: Ideal for IoT sensors, portable devices, and industrial control.
Base Product Number : STM32L031G6
32-bit MCU 32KB flash 32MHz 8KB RAM ARM Cortex-M0+ industrial IoT portable UFQFN-28 ultra-low-power
Q: What is the operating voltage range of the STM32L031G6U7S?
A: It operates from 1.65V to 3.6V, ideal for battery-powered devices.
Q: What core does this MCU use?
A: It uses the ARM Cortex-M0+ core running at up to 32MHz.
Q: How much flash and RAM does it have?
A: It has 32KB flash and 8KB RAM.
Q: What package is available?
A: It comes in a 28-UFQFN package.
Q: What are typical applications?
A: Ideal for IoT sensors, portable devices, and industrial control.