Silicon Labs
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
EFM32LG940F256-QFN64
詳細を表示 DataSheets

EFM32LG940F256-QFN64

Introduction

The EFM32LG940F256-QFN64 is a microcontroller belonging to the EFM32LG family, 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 to 3.8V
  • I/O Pins: 55
  • Interfaces: SPI, I2C, UART, USB
  • Analog Inputs: 12-bit ADC

Detailed Pin Configuration

The EFM32LG940F256-QFN64 features a total of 64 pins, including GPIO, analog input, power, and communication interface pins. The pinout diagram and detailed pin descriptions can be found in the official datasheet provided by Silicon Labs.

Functional Features

  • Low energy consumption modes for battery-powered applications
  • Integrated peripherals for versatile system design
  • Advanced energy monitoring and debugging capabilities
  • Rich set of communication interfaces for connectivity

Advantages and Disadvantages

Advantages

  • Ultra-low power consumption extends battery life
  • High-performance ARM Cortex-M3 core for efficient processing
  • Integrated peripherals reduce external component count
  • Comprehensive development tools and software support

Disadvantages

  • Limited availability of alternative packages
  • Higher cost compared to some competing microcontrollers
  • Complex power management may require additional expertise for optimal utilization

Working Principles

The EFM32LG940F256-QFN64 operates based on the ARM Cortex-M3 core, which executes user-defined application code and interacts with integrated peripherals and external components. The microcontroller's low energy consumption is achieved through advanced power management techniques and efficient hardware operation.

Detailed Application Field Plans

The EFM32LG940F256-QFN64 is well-suited for a wide range of applications, including: - Battery-powered IoT devices - Industrial control and monitoring systems - Smart home automation - Wearable electronics - Sensor nodes for environmental monitoring

Detailed and Complete Alternative Models

  • EFM32LG840F256-QFN64: Similar features with reduced flash memory
  • EFM32WG980F256-QFN64: Enhanced wireless connectivity options
  • EFM32PG890F256-QFN64: Ultra-low power with added peripheral features

In conclusion, the EFM32LG940F256-QFN64 offers a compelling combination of low power consumption, high performance, and integrated peripherals, making it an ideal choice for energy-efficient embedded system designs across various application domains.

Word Count: 498

技術ソリューションにおける EFM32LG940F256-QFN64 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the EFM32LG940F256-QFN64 microcontroller used for?

    • The EFM32LG940F256-QFN64 microcontroller is commonly used in applications such as industrial control, home automation, and Internet of Things (IoT) devices.

  2. What are the key features of the EFM32LG940F256-QFN64 microcontroller?

    • The EFM32LG940F256-QFN64 features a 32-bit ARM Cortex-M3 processor, low power consumption, multiple communication interfaces, and a wide operating voltage range.

  3. How does the EFM32LG940F256-QFN64 microcontroller handle low power consumption?

    • The microcontroller incorporates energy-saving modes, such as deep sleep and standby modes, to minimize power consumption in battery-powered or energy-efficient applications.

  4. What communication interfaces are supported by the EFM32LG940F256-QFN64 microcontroller?

    • The microcontroller supports interfaces such as UART, SPI, I2C, USB, and CAN, enabling seamless connectivity with various peripherals and external devices.

  5. Can the EFM32LG940F256-QFN64 microcontroller be programmed using standard development tools?

    • Yes, the microcontroller can be programmed using industry-standard IDEs and toolchains, including Silicon Labs' Simplicity Studio, making it easy to integrate into existing development environments.

  6. What are the available memory options for the EFM32LG940F256-QFN64 microcontroller?

    • The microcontroller offers a range of flash memory and RAM options, providing flexibility for storing program code, data, and variables.

  7. Does the EFM32LG940F256-QFN64 microcontroller have built-in security features?

    • Yes, the microcontroller includes hardware cryptographic accelerators, secure bootloading, and a unique device identifier to enhance system security.

  8. How does the EFM32LG940F256-QFN64 microcontroller handle analog inputs?

    • The microcontroller features a high-resolution analog-to-digital converter (ADC) and analog comparators, making it suitable for applications requiring precise analog signal processing.

  9. What operating voltage range does the EFM32LG940F256-QFN64 microcontroller support?

    • The microcontroller operates within a wide voltage range, typically from 1.85V to 3.8V, allowing for compatibility with various power supply configurations.

  10. Is the EFM32LG940F256-QFN64 microcontroller suitable for harsh environmental conditions?

    • With its robust design and support for extended temperature ranges, the microcontroller is well-suited for deployment in challenging industrial and outdoor environments.