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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 54
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size 2K x 8
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 28x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STMicroelectronics STM8L151R8T3 is an 8-bit ultra-low-power microcontroller based on the STM8 core, running at 16MHz. It features 64KB flash and 4KB SRAM, with integrated DMA, IR, PWM, brown-out detection, POR, and WDT. Operating from 1.8V to 3.6V and rated for -40°C to 125°C, this 64-LQFP device targets automotive and industrial applications.

  • Extended temperature range: -40°C to 125°C supports harsh automotive and industrial environments.
  • Rich timer set: Multiple PWM timers enable precise motor and lighting control.
  • Low-power design: Optimized for battery-powered and energy-harvesting systems.
  • Integrated IR: Simplifies remote sensing and communication interfaces.

Automotive Lighting Control

The -40°C to 125°C rating and PWM outputs enable reliable LED driver control in headlamps and interior lighting.

Industrial Motor Drives

With DMA and multiple timers, this MCU handles sensorless BLDC motor control in pumps and fans.

Smart Grid Sensors

The 64KB flash stores calibration tables for power monitoring, while the low-power modes support line-powered operation.

Medical Infusion Pumps

Brown-out detection and WDT ensure fail-safe operation, and the 4KB RAM buffers sensor data for precise flow control.

Building Fire Panels

The wide temperature range and robust I/O make it suitable for smoke detector interfaces and alarm control units.

Portable Gas Detectors

The 1.8V operation and IR interface support electrochemical sensor readout and alarm annunciation.

Q: What core does the STM8L151R8T3 use?
A: It uses the STM8 8-bit core running at up to 16MHz.
Q: What is the memory size?
A: It has 64KB flash and 4KB SRAM.
Q: What is the operating temperature range?
A: It operates from -40°C to 125°C, suitable for extreme environments.
Q: Does it support infrared?
A: Yes, it includes an IR interface for remote control and proximity sensing.
Base Product Number : STM8L151R8
16MHz 4KB RAM 64-LQFP 64KB flash 8-bit MCU automotive industrial IR PWM STM8 STM8L151R8
Q: What core does the STM8L151R8T3 use?
A: It uses the STM8 8-bit core running at up to 16MHz.
Q: What is the memory size?
A: It has 64KB flash and 4KB SRAM.
Q: What is the operating temperature range?
A: It operates from -40°C to 125°C, suitable for extreme environments.
Q: Does it support infrared?
A: Yes, it includes an IR interface for remote control and proximity sensing.