STMicroelectronics STM32L151C8U6A

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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 37
Program Memory Size 64KB (64K 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 16x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-UFQFPN (7x7)
Package / Case 48-UFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L151C8U6A is an ultra-low-power ARM Cortex-M3 MCU from STMicroelectronics, operating at 32MHz with 64KB flash and 32KB RAM. Its 1.8V-3.6V supply range and integrated Cap Sense, DMA, and I2S make it ideal for battery-powered and touch-enabled applications in a compact 48-UFQFN package.

  • Ultra-low power consumption: 1.8V operation extends battery life in portable designs.
  • Integrated Cap Sense: Eliminates external touch controllers, reducing BOM cost.
  • Rich analog features: POR and Brown-out Reset enhance system reliability.
  • Compact 48-UFQFN package: Saves PCB space for space-constrained wearables.

Portable Medical Devices

Low 1.8V operation and 32MHz Cortex-M3 core enable battery-powered glucose meters and pulse oximeters with long battery life.

Industrial Sensor Nodes

DMA and WDT ensure reliable data logging from temperature and pressure sensors in harsh environments.

Smart Home Controllers

Cap Sense touch interfaces allow sleek, button-free control panels for lighting and HVAC systems.

Wearable Fitness Trackers

Ultra-low-power modes and 32K RAM support continuous activity monitoring without frequent recharging.

Building Automation

I2S interface enables audio alerts in fire alarm panels, while PWM drives indicator LEDs efficiently.

IoT Edge Devices

Brown-out detection and POR ensure stable operation in remote sensors powered by energy harvesting.

Q: What is the operating voltage range?
A: 1.8V to 3.6V.
Q: What is the maximum CPU speed?
A: 32MHz.
Q: What package is available?
A: 48-UFQFN exposed pad.
Q: Does it support capacitive sensing?
A: Yes, Cap Sense is integrated.
Base Product Number : STM32L151C8
32-bit MCU 32KB RAM 32MHz 64KB Flash ARM Cortex-M3 Cap Sense DMA I2S IoT portable medical STM32L151C8U6A STMicroelectronics UFQFN-48 ultra-low-power
Q: What is the operating voltage range?
A: 1.8V to 3.6V.
Q: What is the maximum CPU speed?
A: 32MHz.
Q: What package is available?
A: 48-UFQFN exposed pad.
Q: Does it support capacitive sensing?
A: Yes, Cap Sense is integrated.