EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts   Wearables & Medical  Ultra-Low Power MCUs    STM32L151C8T6A
STM32L151C8T6A

STM32L151C8T6A

STMicroelectronics
ARM® Cortex®-M3 STM32L1 Microcontroller IC 32-Bit 32MHz 64KB (64K x 8) FLASH 48-LQFP (7x7)
Active6,759 in stock
Datasheet Digi-Key Compare Prices

Overview

The STM32L151C8T6A is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core, operating at frequencies up to 32MHz. It features 64KB of Flash memory and 16KB of RAM, specifically designed for battery-operated applications that require high energy efficiency without sacrificing 32-bit performance.

Why Choose This Part

The device offers a unique combination of 4KB of true data EEPROM and 16KB of RAM for a 64KB Flash device. Its ultra-low-power platform includes multiple power-saving modes and an internal multispeed low-power clock that facilitates rapid wake-up times and efficient task execution.

Applications

Battery-Powered Sensors
Ideal for remote environmental or industrial sensors where long battery life is critical due to its 1.11uA standby current.
Portable Medical Devices
Suitable for handheld diagnostic tools like glucose meters or heart rate monitors that require integrated EEPROM for data logging.
Utility Metering
Used in gas, water, and heat meters that demand low power consumption and high reliability over long deployment periods.

Key Specifications

Speed 32MHz
RAM Size 32K x 8
Core Size 32-Bit
EEPROM Size 4K x 8
Peripherals Brown-out Detect/Reset, Cap Sense, DMA, I2S, POR, PWM, WDT
Connectivity I2C, IrDA, LINbus, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 37
Core Processor ARM Cortex-M3
Package / Case 48-LQFP
Data Converters A/D 16x12b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 48-LQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V

Getting Started

Development is best supported by the STM32Cube ecosystem and the STM32CubeL1 MCU Package. Hardware evaluation can be performed using the NUCLEO-L152RE development board, which shares the same architecture and offers integrated ST-LINK debugging and Arduino-compatible headers.

STM32L151 Family

Part NumberDifferenceStock
STM32L151RBT6 64-pin · 128KB Flash 742
STM32L151RET6 64-pin · 512KB Flash 904

Categories

Wearables & Medical > Ultra-Low Power MCUs
The 2026 Embedded Online Conference