STM32L452REI3

Product Overview

• Category: Microcontroller
• Use: Embedded systems, Internet of Things (IoT) devices, consumer electronics
• Characteristics: Low power consumption, high performance, rich peripheral set
• Package: LQFP64
• Essence: ARM Cortex-M4 core with floating-point unit (FPU)
• Packaging/Quantity: Tray, 250 units per tray

Specifications

• Microcontroller Family: STM32L4
• Core: ARM Cortex-M4
• Clock Speed: Up to 80 MHz
• Flash Memory: 512 KB
• RAM: 160 KB
• Operating Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: -40°C to +85°C
• Digital I/O Pins: 51
• Analog Input Channels: 16
• Communication Interfaces: UART, SPI, I2C, USB, CAN, Ethernet
• Timers: 16-bit and 32-bit timers
• ADC Resolution: Up to 16 bits
• Power Consumption: Ultra-low power mode with less than 1 µA current consumption

Pin Configuration

The STM32L452REI3 microcontroller has a total of 64 pins. The pin configuration is as follows:

• GPIO pins: PA0 to PA15, PB0 to PB15, PC0 to PC15, PD0 to PD2, PE0 to PE15
• Analog input pins: PA0 to PA7, PB0 to PB1, PC0 to PC5
• Communication interface pins: USART1, USART2, USART3, UART4, UART5, SPI1, SPI2, I2C1, I2C2, USB, CAN, Ethernet
• Power supply pins: VDD, VSS, VBAT

Functional Features

• Low power consumption: The STM32L452REI3 microcontroller is designed for low-power applications, making it suitable for battery-powered devices and energy-efficient systems.
• High performance: With its ARM Cortex-M4 core and clock speed of up to 80 MHz, the microcontroller offers excellent processing capabilities.
• Rich peripheral set: The microcontroller provides a wide range of communication interfaces, timers, and analog-to-digital converters (ADCs), enabling seamless integration with various external devices.
• Flexible power management: It supports multiple power modes, allowing developers to optimize power consumption based on application requirements.
• Enhanced security features: The microcontroller includes hardware cryptographic accelerators, secure boot, and memory protection units to ensure data integrity and system security.

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life in portable devices. - High-performance ARM Cortex-M4 core enables efficient execution of complex tasks. - Rich peripheral set simplifies connectivity with external devices. - Flexible power management options optimize power consumption. - Enhanced security features protect sensitive data.

Disadvantages: - Limited flash memory and RAM compared to higher-end microcontrollers. - Higher cost compared to entry-level microcontrollers. - Requires familiarity with ARM architecture and development tools.

Working Principles

The STM32L452REI3 microcontroller operates based on the ARM Cortex-M4 architecture. It executes instructions stored in its flash memory and interacts with external devices through its various communication interfaces. The microcontroller's core handles data processing, while its peripherals handle specific functions such as communication, timing, and analog-to-digital conversion. Developers program the microcontroller using software development tools and libraries provided by STMicroelectronics.

Detailed Application Field Plans

The STM32L452REI3 microcontroller finds applications in various fields, including:

1. Internet of Things (IoT) devices: Its low power consumption and rich peripheral set make it suitable for IoT applications such as smart home devices, environmental monitoring systems, and wearable technology.
2. Consumer electronics: The microcontroller can be used in consumer electronics products like fitness trackers, remote controls, and home automation systems.
3. Industrial automation: Its high performance and communication interfaces enable integration into industrial automation systems, including control panels, motor drives, and sensor networks.
4. Medical devices: The microcontroller's low power consumption and security features make it suitable for medical devices such as portable health monitors, insulin pumps, and patient monitoring systems.

Detailed and Complete Alternative Models

• STM32L432KC
• STM32L476RG
• STM32L011F3
• STM32L152RE
• STM32L100RCT6

These alternative models offer similar features and capabilities to the STM32L452REI3 microcontroller, providing developers with options based on their specific requirements.

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