EFM32LG940F64-QFN64T

Product Overview

Category

The EFM32LG940F64-QFN64T belongs to the category of microcontrollers.

Use

This microcontroller is designed for various embedded applications, including but not limited to consumer electronics, industrial automation, and Internet of Things (IoT) devices.

Characteristics

• Low power consumption: The EFM32LG940F64-QFN64T is known for its energy-efficient design, making it suitable for battery-powered applications.
• High performance: With a 32-bit ARM Cortex-M3 processor, this microcontroller offers fast processing capabilities.
• Rich peripheral set: It features a wide range of integrated peripherals such as UART, SPI, I2C, ADC, and timers, providing flexibility for different application requirements.

Package

The EFM32LG940F64-QFN64T comes in a QFN64 package, which stands for Quad Flat No-Lead with 64 pins. This package type offers compact size and ease of soldering.

Essence

The essence of the EFM32LG940F64-QFN64T lies in its ability to provide a powerful yet energy-efficient solution for embedded systems.

Packaging/Quantity

This microcontroller is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Microcontroller core: ARM Cortex-M3
• Clock frequency: Up to 48 MHz
• Flash memory: 64 KB
• RAM: 8 KB
• Operating voltage: 1.8V - 3.6V
• Digital I/O pins: 51
• Analog input channels: 12
• Communication interfaces: UART, SPI, I2C
• Timers: 4 x 16-bit, 2 x 32-bit
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The EFM32LG940F64-QFN64T microcontroller has a total of 64 pins. The pin configuration is as follows:

• Pins 1-8: Digital I/O or analog input pins
• Pins 9-16: Digital I/O or analog input pins
• Pins 17-24: Digital I/O or analog input pins
• Pins 25-32: Digital I/O or analog input pins
• Pins 33-40: Digital I/O or analog input pins
• Pins 41-48: Digital I/O or analog input pins
• Pins 49-56: Digital I/O or analog input pins
• Pins 57-64: Digital I/O or analog input pins

Functional Features

• Low power modes: The EFM32LG940F64-QFN64T offers various low power modes, allowing the microcontroller to operate with minimal energy consumption during idle or sleep periods.
• Integrated peripherals: This microcontroller includes a wide range of integrated peripherals, such as UART, SPI, and I2C, enabling seamless communication with external devices.
• Advanced debugging capabilities: It supports advanced debugging features, including real-time trace and breakpoints, facilitating efficient software development and troubleshooting.

Advantages and Disadvantages

Advantages

• Energy-efficient design extends battery life in portable applications.
• High-performance ARM Cortex-M3 processor enables fast data processing.
• Rich peripheral set provides flexibility for diverse application requirements.
• Compact QFN64 package allows for space-saving designs.

Disadvantages

• Limited flash memory (64 KB) may restrict the complexity of applications that can be implemented.
• Relatively small RAM size (8 KB) may limit the amount of data that can be stored and processed simultaneously.

Working Principles

The EFM32LG940F64-QFN64T microcontroller operates based on the ARM Cortex-M3 architecture. It executes instructions stored in its flash memory, utilizing the integrated peripherals and I/O pins to interact with external devices. The clock frequency determines the speed at which the microcontroller processes data and executes instructions.

Detailed Application Field Plans

The EFM32LG940F64-QFN64T microcontroller finds applications in various fields, including: - Home automation systems - Wearable devices - Industrial control systems - Smart energy management - Medical devices - Internet of Things (IoT) devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the EFM32LG940F64-QFN64T microcontroller include: - STM32F103C8T6 - PIC32MX795F512L - MSP430G2553 - LPC1768

These alternative models provide comparable features and can be considered as substitutes depending on specific project requirements.

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