STMicroelectronics STM32L151UCY6TR

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L1
Packaging Cut Tape (CT) | Tape & Reel (TR)
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 256KB (256K x 8)
Program Memory Type FLASH
EEPROM Size 8K x 8
RAM Size 32K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 21x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 63-WLCSP (3.23x4.16)
Package / Case 63-UFBGA, WLCSP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STMicroelectronics STM32L151UCY6TR is a low-power ARM Cortex-M3 microcontroller running at 32MHz. It offers 256KB of flash and 32KB of RAM, operating from 1.8V to 3.6V. This WLCSP device integrates Cap Sense touch, DMA, and I2S, ideal for space-constrained, battery-powered applications.

  • Ultra-compact WLCSP: 63-ball package minimizes PCB area for wearables and IoT.
  • Low-power ARM core: 32MHz Cortex-M3 with multiple sleep modes extends battery life.
  • Integrated Cap Sense: Touch sensing without external ICs simplifies design.
  • Large memory: 256KB flash and 32KB RAM support complex applications.

Wearable Health Monitors

The WLCSP package and 1.8V operation enable ultra-compact fitness trackers and heart-rate monitors with long battery life.

Smart Home Sensors

Cap Sense touch interfaces and low-power modes suit battery-powered door/window sensors and thermostats.

Industrial IoT Nodes

32MHz Cortex-M3 with 256KB flash handles MQTT protocols and sensor fusion in wireless condition monitoring.

Medical Implantables

Low power consumption and small footprint make it viable for glucose sensors and neurostimulators.

Portable Audio Devices

I2S interface and DMA support high-quality audio streaming in MP3 players and voice recorders.

Asset Tracking

Multiple low-power modes and wake-up timers extend battery life in GPS trackers and logistics tags.

Q: What core does the STM32L151UCY6TR use?
A: It is based on the ARM Cortex-M3 32-bit core running at 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, optimized for low-power applications.
Q: How much flash and RAM does it have?
A: It features 256KB of flash and 32KB of RAM.
Q: What package is this?
A: It comes in a 63-ball WLCSP (wafer-level chip-scale package) for compact designs.
Q: Does it support capacitive touch?
A: Yes, it includes Cap Sense technology for touch sensing without external chips.
Base Product Number : STM32L151UCY6
256KB Flash 32-bit MCU ARM Cortex-M3 Cap Sense IoT low power medical STM32L1 wearable WLCSP
Q: What core does the STM32L151UCY6TR use?
A: It is based on the ARM Cortex-M3 32-bit core running at 32MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, optimized for low-power applications.
Q: How much flash and RAM does it have?
A: It features 256KB of flash and 32KB of RAM.
Q: What package is this?
A: It comes in a 63-ball WLCSP (wafer-level chip-scale package) for compact designs.
Q: Does it support capacitive touch?
A: Yes, it includes Cap Sense technology for touch sensing without external chips.