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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8L EnergyLite
Packaging Tray |
Core Processor STM8
Core Size 8-Bit
Speed 16MHz
Connectivity I2C, SPI, UART/USART
Peripherals Infrared, POR, PWM, WDT
Number of I/O 26
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size 2K x 8
RAM Size 1.5K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters -
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 STM8L101G3U6 from STMicroelectronics is an ultra-low-power 8-bit microcontroller based on the STM8 core, operating at up to 16MHz. It provides 8KB of flash memory and 1.5KB of SRAM, with a supply voltage range of 1.65V to 3.6V. This device features an infrared interface, power-on reset, PWM, and watchdog timer. Packaged in a compact 28-pin UFQFN, it is designed for battery-powered and space-constrained applications, operating reliably from -40°C to 85°C.

  • Ultra-Low Voltage Operation: 1.65V minimum allows direct battery operation without boost converters.
  • Integrated IR Support: Reduces external components for remote control and proximity sensing.
  • Compact Form Factor: 28-UFQFN package saves PCB space in miniaturized devices.
  • Low Power Consumption: Optimized for extended battery life in portable and wearable electronics.

Ultra-Low-Power Wearables

With a 1.65V minimum supply and 16MHz STM8 core, it can run fitness trackers or smartwatches from a single coin cell, while the IR feature enables wireless data sync.

Remote Controls and IR Transmitters

The integrated infrared peripheral simplifies NEC or RC5 protocol encoding, reducing external components and BOM cost in TV or AC remotes.

Medical Patch Sensors

Its low voltage (1.65V) and small UFQFN package allow for disposable glucose or ECG patches that operate for weeks on thin-film batteries.

Smart Home Sensors

8KB flash is sufficient for temperature/humidity monitoring logic, while the WDT ensures reliable operation in always-on door/window sensors.

Portable Instruments

The 1.5KB RAM and low-power modes enable handheld multimeters or thermometers with long battery life and fast wake-up from sleep.

IoT End Nodes

With 16MHz processing and IR for proximity sensing, it can serve as a low-power edge node in smart building occupancy detection systems.

Q: What is the core processor in the STM8L101G3U6?
A: It uses an STM8 8-bit core running at up to 16MHz, optimized for low power.
Q: What is the supply voltage range?
A: It operates from 1.65V to 3.6V, ideal for battery-powered devices.
Q: How much flash memory is available?
A: It has 8KB of flash program memory and 1.5KB of SRAM.
Q: What package does it come in?
A: It is available in a 28-pin UFQFN package, very compact for space-limited designs.
Q: Does it support infrared applications?
A: Yes, it includes infrared (IR) support, making it suitable for remote controls.
Base Product Number : STM8L101G3U6
-40C to 85C 16MHz 8-bit MCU 8KB flash battery powered infrared low power STM8 STMicroelectronics UFQFN-28 wearable
Q: What is the core processor in the STM8L101G3U6?
A: It uses an STM8 8-bit core running at up to 16MHz, optimized for low power.
Q: What is the supply voltage range?
A: It operates from 1.65V to 3.6V, ideal for battery-powered devices.
Q: How much flash memory is available?
A: It has 8KB of flash program memory and 1.5KB of SRAM.
Q: What package does it come in?
A: It is available in a 28-pin UFQFN package, very compact for space-limited designs.
Q: Does it support infrared applications?
A: Yes, it includes infrared (IR) support, making it suitable for remote controls.