STMicroelectronics STM32L081CBT6

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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, I2S, POR, PWM, WDT
Number of I/O 40
Program Memory Size 128KB (128K x 8)
Program Memory Type FLASH
EEPROM Size 6K x 8
RAM Size 20K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters A/D 13x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-LQFP (7x7)
Package / Case 48-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L081CBT6 from STMicroelectronics is an ultra-low-power ARM Cortex-M0+ microcontroller with 128KB flash and 20KB RAM. Operating from 1.65V to 3.6V at 32MHz, it integrates DMA, I2S, PWM, WDT, and brown-out reset in a 48-LQFP package, ideal for battery-powered and energy-efficient embedded systems.

  • Ultra-low-power architecture: extends battery life in portable applications.
  • High memory density: 128KB flash for complex firmware.
  • Rich communication peripherals: I2S and DMA enable efficient data streaming.
  • Wide voltage range: 1.65V support for single-cell battery operation.

IoT Edge Nodes

Ultra-low-power Cortex-M0+ core with 128KB flash handles sensor fusion and wireless protocol stacks.

Smart Meters

DMA and I2S peripherals enable efficient data logging and communication with metering ICs.

Portable Medical Devices

1.65V operation and multiple low-power modes extend battery life in glucose meters and pulse oximeters.

Industrial Sensors

Brown-out reset and WDT ensure reliable operation in noisy industrial environments.

Building Automation

PWM outputs control lighting and HVAC actuators with precise timing.

Consumer Electronics

48-LQFP package and rich peripherals suit remote controls and smart home hubs.

Q: What core does it use?
A: ARM Cortex-M0+ at 32MHz.
Q: What is the supply voltage range?
A: 1.65V to 3.6V, supporting low-voltage operation.
Q: How much flash and RAM?
A: 128KB flash and 20KB RAM.
Q: What package is offered?
A: 48-LQFP package.
Base Product Number : STM32L081CB
128KB flash 32-bit MCU 48-LQFP ARM Cortex-M0+ industrial IoT medical ultra-low-power
Q: What core does it use?
A: ARM Cortex-M0+ at 32MHz.
Q: What is the supply voltage range?
A: 1.65V to 3.6V, supporting low-voltage operation.
Q: How much flash and RAM?
A: 128KB flash and 20KB RAM.
Q: What package is offered?
A: 48-LQFP package.