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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8L EnergyLite
Packaging Tray | NULL
Core Processor STM8
Core Size 8-Bit
Speed 16MHz
Connectivity I2C, IrDA, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, IR, POR, PWM, WDT
Number of I/O 26
Program Memory Size 4KB (4K x 8)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 18x12b
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 STMicroelectronics STM8L151G2U6 is an 8-bit ultra-low-power microcontroller featuring the STM8 core at 16MHz. It provides 4KB of flash and 1KB of RAM in a 28-UFQFN package. Operating from 1.8V to 3.6V, it includes brown-out detection, DMA, IR, POR, PWM, and WDT peripherals. This device is engineered for battery-powered applications where energy efficiency and small size are critical.

  • Ultra-Low Power: STM8L architecture is designed for extended battery life in portable devices.
  • Integrated IR Support: Built-in IR features simplify remote control and proximity sensing designs.
  • Compact 28-UFQFN: Ideal for miniaturized PCBs in wearables and medical patches.
  • Robust Reset Management: Brown-out detect and POR ensure stable operation under power stress.

Ultra-Low-Power Wearables

The STM8L core is optimized for low power consumption, and the 1.8V-3.6V range supports direct CR2032 battery operation in fitness bands or smart watches.

Medical Patch Sensors

With integrated brown-out detection and DMA, this MCU can reliably log biometric data in disposable health patches while maintaining long battery life.

Remote Controls

The IR feature and PWM outputs make it ideal for IR remote transmitters, with low standby current for extended battery life.

Small Home Appliances

Its compact 28-UFQFN package and 16MHz performance suit simple control tasks in coffee makers or electric toothbrushes.

Environmental Monitoring

The low-power modes and WDT enable long-term deployment in outdoor sensor nodes measuring temperature or humidity.

Security Keypads

With POR and brown-out reset, it ensures reliable operation in access control keypads, even during power fluctuations.

Q: What core does the STM8L151G2U6 use?
A: It is based on the STM8 8-bit core.
Q: What is the maximum operating frequency?
A: The CPU runs at up to 16MHz.
Q: How much flash and RAM does it have?
A: It offers 4KB of program flash and 1KB of RAM.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V.
Q: What package is available?
A: It comes in a 28-UFQFN package.
Base Product Number : STM8L151G2U6
16MHz 1KB RAM 4KB Flash 8-bit MCU Brown-out Detect DMA IR Medical POR PWM Remote Control STM8 UFQFN-28 WDT Wearable
Q: What core does the STM8L151G2U6 use?
A: It is based on the STM8 8-bit core.
Q: What is the maximum operating frequency?
A: The CPU runs at up to 16MHz.
Q: How much flash and RAM does it have?
A: It offers 4KB of program flash and 1KB of RAM.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V.
Q: What package is available?
A: It comes in a 28-UFQFN package.