STM32L151CBT6

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STM32L151CBT6

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IC MCU 32BIT 128KB FLASH 48LQFP

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Specifications

Attribute Value
Package / Case Tray
Series STM32L1
Part Status Not For New Designs
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 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 16x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Overview

Description

The STM32L151CBT6 is a low-power ARM Cortex-M3 microcontroller from STMicroelectronics. Key features:
- Core: 32-bit Cortex-M3 running at 32 MHz
- Memory: 128 KB Flash, 16 KB SRAM
- Ultra-low power: Multiple low-power modes (down to 0.3 µA in Standby)
- Peripherals: USB, ADC, DAC, USART, SPI, I²C, timers
- Package: LQFP48 (48 pins)
- Operating Voltage: 1.8V–3.6V
Ideal for battery-powered and energy-efficient applications like IoT, sensors, and wearables. Offers a balance of performance and power efficiency.

Equivalent

Equivalent products to STM32L151CBT6 (Cortex-M3, 128KB Flash, 16KB RAM, LQFP-48) include:
- STM32L151CBT6A (same specs, extended temp range)
- STM32L151CBT7 (same specs, LQFP-48, higher temp range)
- STM32L151RBT6 (same core, LQFP-64, more I/Os)
- STM32L152CBT6 (similar, adds EEPROM)
- STM32F051C8T6 (Cortex-M0, lower power, 64KB Flash)
Check pin compatibility and features for exact replacements.

Pinout

The STM32L151CBT6 is a 32-bit ARM Cortex-M3 microcontroller from STMicroelectronics.
- Pin Count: 48 pins (LQFP package).
- Key Functions:
- Core: 32 MHz Cortex-M3 with ultra-low-power operation.
- Memory: 128 KB Flash, 16 KB RAM.
- Peripherals:
- Multiple GPIOs (up to 39 I/Os).
- Communication: USART, SPI, I²C, USB.
- Analog: 12-bit ADC, DAC, comparators.
- Timers: 16-bit & 32-bit timers, RTC.
- Power: 1.8V–3.6V supply, optimized for low-power applications.
Compact and efficient for embedded systems.

Manufacturer

The STM32L151CBT6 is manufactured by STMicroelectronics (ST), a multinational semiconductor and electronics company headquartered in Geneva, Switzerland.
STMicroelectronics specializes in designing and producing microcontrollers, sensors, power management ICs, and other semiconductor solutions. The STM32L151CBT6 is part of their STM32 family, a popular line of ARM Cortex-M-based microcontrollers, known for low-power performance and versatility in embedded applications.
ST is a leading player in the semiconductor industry, serving markets like automotive, industrial, consumer electronics, and IoT.

Application

The STM32L151CBT6, a low-power ARM Cortex-M3 MCU, is ideal for:
- Battery-powered devices (wearables, sensors)
- IoT applications (smart meters, remote monitoring)
- Medical devices (portable diagnostics, glucose monitors)
- Consumer electronics (smart home controls, wireless peripherals)
- Industrial automation (HMI, low-power controllers)
Its ultra-low-power operation, rich peripherals (ADC, UART, SPI, I2C), and compact footprint make it suitable for energy-efficient embedded systems.

Package

The STM32L151CBT6 comes in an LQFP-48 package. This is a 48-pin, low-profile quad flat package with a body size of 7x7 mm and a 0.5 mm pin pitch. It is surface-mountable, suitable for compact designs, and commonly used in low-power embedded applications.

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