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STM32L151CBT6A

STM32L151CBT6A

STMicroelectronics
ARM® Cortex®-M3 STM32L1 Microcontroller IC 32-Bit 32MHz 128KB (128K x 8) FLASH 48-LQFP (7x7)
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Overview

The STM32L151CBT6A is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core, operating at frequencies up to 32MHz. It integrates 128KB of Flash memory, 32KB of RAM, and 4KB of true EEPROM, making it ideal for battery-operated devices requiring data persistence and low energy consumption.

Why Choose This Part

This MCU features ST's proprietary ultra-low-leakage process technology, achieving a standby current of approximately 1.11uA. It offers a high level of integration with 7 DMA channels, 37 I/O pins, and hardware-based CRC for data integrity in mission-critical low-power applications.

Applications

Battery-Powered Sensors
Utilizes ultra-low-power modes and 1.65V to 3.6V operating range to extend the life of remote industrial or environmental monitoring nodes.
Wearable Medical Devices
Integrated 14-channel ADC and capacitive sensing support for health tracking and user interface tasks in a compact 48-pin LQFP package.
USB Peripheral Devices
Integrated USB 2.0 interface for low-power PC peripherals or handheld data loggers that require periodic wired data transfer.

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 128KB (128K 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

Engineers can begin development using the STM32CubeL1 MCU Package within the STM32CubeIDE environment. Practical evaluation is typically performed using the NUCLEO-L152RE board, which shares the same architecture and allows for easy migration to the STM32L151CBT6A design.

Dev Boards

Development boards and breakout modules featuring the STM32L151CBT6A or compatible chips — ready to use for prototyping.

NUCLEO-L152RE STMicroelectronics
STM32L152 Nucleo-64 STM32L1 ARM® Cortex®-M3 MCU 32-Bit Embedded Evaluation Board
Digi-Key 633 in stock
Part of STM32L1 family » STM32L151

STM32L151 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number RAM EEPROM Size I/O Pins Package ADC/DAC Flash Stock
STM32L151CBT6A (this part) 32K 4K 37 LQFP-48 A/D 16x12b; D/A 2x.. 128KB 2,292
STM32L151RBT6 32K 4K 51 LQFP-64 A/D 20x12b; D/A 2x.. 128KB 742
STM32L151C8T6A 32K 4K 37 LQFP-48 A/D 16x12b; D/A 2x.. 64KB 6,742
STM32L151RET6 80K 16K 51 LQFP-64 A/D 21x12b; D/A 2x.. 512KB 904

Also Consider

STM32L431CBT6 STMicroelectronics - Offers a significant performance boost with an 80MHz Cortex-M4F core while maintaining pin-to-pin compatibility in many designs.

Categories

Microcontrollers > ARM Cortex-M3
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