EFM32LG840F256G-E-QFN64

Introduction

The EFM32LG840F256G-E-QFN64 is a microcontroller belonging to the EFM32LG840 series, designed and manufactured by Silicon Labs. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Microcontroller
• Use: Embedded systems, IoT devices, industrial control systems
• Characteristics: Low power consumption, high performance, integrated peripherals
• Package: QFN64
• Essence: Energy-friendly microcontroller
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Core: ARM Cortex-M3
• Clock Speed: Up to 48 MHz
• Flash Memory: 256 KB
• RAM: 32 KB
• Operating Voltage: 1.85V - 3.8V
• I/O Pins: 51
• Interfaces: SPI, I2C, UART, USB
• Analog Inputs: 12-bit ADC

Detailed Pin Configuration

The EFM32LG840F256G-E-QFN64 features a total of 64 pins, including GPIO, analog input, power, ground, and communication interface pins. The pinout diagram and detailed configuration can be found in the official datasheet provided by Silicon Labs.

Functional Features

• Low Energy Consumption: The microcontroller is optimized for ultra-low power operation, making it suitable for battery-powered applications.
• Integrated Peripherals: It includes a wide range of integrated peripherals such as timers, communication interfaces, and analog-to-digital converters, reducing the need for external components.
• Security Features: Built-in security features provide protection against unauthorized access and data breaches.

Advantages and Disadvantages

Advantages

• Energy-efficient design
• Rich set of integrated peripherals
• Enhanced security features

Disadvantages

• Limited availability of alternative models with similar specifications
• Relatively higher cost compared to some competing microcontrollers

Working Principles

The EFM32LG840F256G-E-QFN64 operates based on the ARM Cortex-M3 core architecture, utilizing low-power modes and efficient peripheral handling to minimize energy consumption while delivering high-performance computing capabilities. The microcontroller executes user-defined code stored in its flash memory, interacting with external devices through its various interfaces.

Detailed Application Field Plans

The EFM32LG840F256G-E-QFN64 is well-suited for a wide range of applications, including: - Battery-powered IoT devices - Industrial automation systems - Smart home appliances - Wearable electronics - Sensor nodes

Detailed and Complete Alternative Models

While the EFM32LG840F256G-E-QFN64 offers unique features and performance, alternative microcontroller models with comparable specifications include: - EFM32GG11B840F1024GM64-B - STM32L476RG - PIC32MX470F512H

In conclusion, the EFM32LG840F256G-E-QFN64 is a versatile microcontroller offering a balance of energy efficiency, performance, and integrated features, making it suitable for a wide range of embedded system applications.

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