STMicroelectronics STM32L151RBH6TR

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L1
Packaging Tape & Reel (TR) | NULL
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 16K 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-TFBGA (5x5)
Package / Case 64-TFBGA
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L151RBH6TR is a low-power 32-bit ARM Cortex-M3 microcontroller from STMicroelectronics. Running at 32MHz with 128KB flash and 16KB RAM, it operates from 1.8V to 3.6V. The 64-TFBGA package includes capacitive sensing, DMA, I2S, brown-out detection, POR, PWM, and WDT, making it ideal for battery-powered and portable applications.

  • Ultra-low power: 1.8V operation extends battery life in portable devices.
  • Integrated capacitive sensing: reduces external touch controller cost.
  • I2S interface: enables direct audio codec connection.
  • Compact TFBGA package: saves PCB space for miniaturized designs.

Battery-Powered IoT Sensors

Low 1.8V operation and Cap Sense enable energy-efficient touch interfaces.

Wearable Health Monitors

Compact TFBGA package and low power modes extend battery life.

Portable Medical Devices

DMA and I2S support continuous audio/ADC data streaming with minimal CPU load.

Smart Home Controllers

Capacitive touch sensing replaces mechanical buttons for modern UI.

Industrial Data Loggers

Brown-out detection ensures data integrity during power fluctuations.

Audio Accessories

I2S interface connects directly to codecs for high-fidelity audio processing.

Q: What is the core and speed?
A: ARM Cortex-M3 at 32MHz.
Q: What is the supply voltage?
A: 1.8V to 3.6V.
Q: How much flash and RAM?
A: 128KB flash and 16KB RAM.
Q: What package is this?
A: 64-TFBGA.
Q: What special features does it have?
A: Capacitive sensing, DMA, I2S, brown-out detect, POR, PWM, WDT.
Base Product Number : STM32L151RBH6TR
128KB Flash 16KB RAM 32-bit 32MHz 64-TFBGA ARM Cortex-M3 Cap Sense DMA I2S IoT Low Power MCU PWM WDT Wearable
Q: What is the core and speed?
A: ARM Cortex-M3 at 32MHz.
Q: What is the supply voltage?
A: 1.8V to 3.6V.
Q: How much flash and RAM?
A: 128KB flash and 16KB RAM.
Q: What package is this?
A: 64-TFBGA.
Q: What special features does it have?
A: Capacitive sensing, DMA, I2S, brown-out detect, POR, PWM, WDT.