STMicroelectronics STM32L151RBT6A

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L1
Packaging Tray |
Core Processor ARM® Cortex®-M3
Core Size 32-Bit Single-Core
Speed 32MHz
Connectivity I2C, IrDA, LINbus, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, Cap Sense, DMA, I2S, POR, PWM, WDT
Number of I/O 51
Program Memory Size 128KB (128K x 8)
Program Memory Type FLASH
EEPROM Size 4K x 8
RAM Size 32K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 20x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°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 STM32L151RBT6A from STMicroelectronics is an ultra-low-power ARM Cortex-M3 microcontroller. It features 128KB flash and 32KB RAM, operating at 32MHz. With Cap Sense, DMA, and multiple low-power modes, it is designed for energy-efficient applications requiring rich connectivity.

  • Ultra-low-power architecture: Extends battery life in portable devices.
  • ARM Cortex-M3 core: Industry-standard ecosystem and tools.
  • Integrated Cap Sense: Eliminates external touch controllers.
  • Wide voltage range (1.8V-3.6V): Flexible power supply options.

Battery-Powered IoT Sensors

Ultra-low-power modes and 1.8V operation extend battery life in wireless nodes.

Medical Wearables

Cap Sense and low power enable compact health monitors with touch interfaces.

Smart Meters

DMA and multiple timers handle accurate measurement and communication protocols.

Industrial Process Controllers

Robust I/O and PWM support analog control loops in harsh environments.

Portable Instrumentation

32MHz speed and rich peripherals allow handheld data loggers and analyzers.

Building Automation

I2S and DMA facilitate audio/video processing in smart home hubs.

Q: What core does the STM32L151RBT6A use?
A: It uses an ARM Cortex-M3 core running at 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, ideal for battery-powered devices.
Q: How much flash and RAM does it have?
A: It has 128KB flash and 32KB RAM.
Q: Does it support capacitive touch sensing?
A: Yes, it includes Cap Sense for touch interfaces.
Base Product Number : STM32L151RBT6A
128KB Flash 32-bit MCU 32KB RAM ARM Cortex-M3 Cap Sense DMA IoT LQFP-64 medical smart meters STM32 ultra-low-power
Q: What core does the STM32L151RBT6A use?
A: It uses an ARM Cortex-M3 core running at 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, ideal for battery-powered devices.
Q: How much flash and RAM does it have?
A: It has 128KB flash and 32KB RAM.
Q: Does it support capacitive touch sensing?
A: Yes, it includes Cap Sense for touch interfaces.