STMicroelectronics STM32L031G6U6STR

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L0
Packaging Tape & Reel (TR) | NULL
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 ~ 85°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 STM32L031G6U6S is an ultra-low-power ARM Cortex-M0+ microcontroller from STMicroelectronics. Running at 32MHz, it offers 32KB flash and 8KB SRAM in a compact 28-UFQFN package. With a supply range of 1.65V to 3.6V and integrated brown-out detect, DMA, POR, PWM, and WDT, it is engineered for energy-efficient embedded applications requiring robust performance in constrained spaces.

  • Ultra-low voltage (1.65V): Enables operation from a single alkaline cell or energy harvesting sources.
  • 8KB SRAM: Provides ample buffer for data-intensive applications compared to similar MCUs.
  • ARM Cortex-M0+ core: Offers a balanced mix of performance and power efficiency with a mature ecosystem.
  • Compact 28-UFQFN: Minimizes PCB footprint for wearable and portable devices.

Ultra-Low-Power IoT Sensors

The 1.65V minimum supply and Cortex-M0+ efficiency enable battery-powered environmental sensors with extended sleep modes.

Portable Medical Devices

With 8KB RAM and DMA, it can handle pulse oximeter or glucose meter data acquisition while maintaining low power consumption.

Smart Access Control

The 32MHz speed and PWM support secure keypad and lock control systems, with brown-out detection ensuring reliable reset.

Industrial Process Monitors

Operating at -40°C to 85°C, it reliably reads 4-20mA loops and drives indicator LEDs in factory automation.

Wearable Fitness Trackers

The small 28-UFQFN package and low-voltage operation make it suitable for step counters and heart-rate monitors.

Q: What core does the STM32L031G6U6S use?
A: It uses the ARM Cortex-M0+ core running at up to 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.65V to 3.6V, ideal for low-power and battery applications.
Q: How much flash and RAM does it have?
A: It provides 32KB flash and 8KB SRAM.
Q: What package is this part available in?
A: It comes in a 28-UFQFN package, suitable for compact designs.
Base Product Number : STM32L031G6U6
32-bit MCU 32KB Flash 32MHz 8KB RAM ARM Cortex-M0+ DMA IoT Low Power PWM STM32 STMicroelectronics UFQFN-28 WDT
Q: What core does the STM32L031G6U6S use?
A: It uses the ARM Cortex-M0+ core running at up to 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.65V to 3.6V, ideal for low-power and battery applications.
Q: How much flash and RAM does it have?
A: It provides 32KB flash and 8KB SRAM.
Q: What package is this part available in?
A: It comes in a 28-UFQFN package, suitable for compact designs.