EFM32LG942F128-QFP64T

Product Overview

Category

The EFM32LG942F128-QFP64T 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 EFM32LG942F128-QFP64T 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 timers, UART, SPI, I2C, ADC, and GPIO, providing flexibility in system design.
• Extensive memory: The microcontroller has 128KB flash memory and 16KB RAM, allowing for storage of program code and data.

Package

The EFM32LG942F128-QFP64T comes in a Quad Flat Package (QFP) with 64 pins. This package type provides ease of soldering and compactness.

Essence

The essence of the EFM32LG942F128-QFP64T lies in its ability to provide a powerful yet energy-efficient solution for embedded systems.

Packaging/Quantity

The 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: 128KB
• RAM: 16KB
• 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, 1 x 32-bit
• ADC resolution: 12-bit

Detailed Pin Configuration

The EFM32LG942F128-QFP64T microcontroller has a total of 64 pins. The pin configuration is as follows:

(Pin diagram or table can be inserted here to provide a visual representation of the pin layout.)

Functional Features

Low Power Modes

The microcontroller offers various low power modes, allowing developers to optimize energy consumption based on the application requirements. These modes include sleep, deep sleep, and stop modes.

Peripherals

The EFM32LG942F128-QFP64T incorporates a wide range of peripherals, including UART, SPI, I2C, and timers. These peripherals enable seamless communication with external devices and efficient control of system functions.

Analog-to-Digital Converter (ADC)

With its 12-bit ADC, the microcontroller can accurately convert analog signals into digital values. This feature is particularly useful in applications that require precise measurement or sensing capabilities.

Advantages and Disadvantages

Advantages

• Energy-efficient design prolongs battery life in portable devices.
• High-performance ARM Cortex-M3 processor enables fast execution of complex tasks.
• Rich peripheral set provides flexibility in system design.
• Ample flash memory and RAM allow for storage of program code and data.

Disadvantages

• Limited number of digital I/O pins may restrict the connectivity options in some applications.
• Lack of built-in Ethernet interface may require additional components for network connectivity.

Working Principles

The EFM32LG942F128-QFP64T operates based on the principles of a typical microcontroller. It executes instructions stored in its flash memory, interacts with peripherals, and communicates with external devices through various interfaces. The microcontroller's clock frequency determines the speed at which it processes instructions and performs tasks.

Detailed Application Field Plans

The EFM32LG942F128-QFP64T microcontroller finds applications in various fields, including: - Home automation systems - Industrial control systems - Wearable devices - Smart meters - Sensor networks - Medical devices

Detailed and Complete Alternative Models

• EFM32GG990F1024-BGA112: Similar to the EFM32LG942F128-QFP64T, this microcontroller offers a higher flash memory capacity and more I/O pins.
• STM32F103C8T6: This microcontroller from STMicroelectronics provides a cost-effective alternative with similar features and performance.

(Note: The list of alternative models can be expanded based on availability and specific requirements.)

In conclusion, the EFM32LG942F128-QFP64T is a versatile microcontroller that combines energy efficiency, high performance, and a rich set of peripherals. Its compact package and extensive application field plans make it an ideal choice for a wide range of embedded systems.