EFM32LG940F128-QFN64T

Product Overview

Category

The EFM32LG940F128-QFN64T belongs to the category of microcontrollers.

Use

This microcontroller is designed for various embedded applications that require low power consumption and high performance.

Characteristics

• Low power consumption
• High performance
• Integrated peripherals
• Small form factor
• Wide operating voltage range

Package

The EFM32LG940F128-QFN64T comes in a QFN64 package, which stands for Quad Flat No-Lead with 64 pins.

Essence

The essence of this microcontroller lies in its ability to provide efficient processing capabilities while consuming minimal power.

Packaging/Quantity

The EFM32LG940F128-QFN64T is typically packaged 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: 128 KB
• RAM: 16 KB
• Operating voltage: 1.8V - 3.6V
• Digital I/O pins: 64
• Analog inputs: 12-bit ADC with up to 16 channels
• Communication interfaces: UART, SPI, I2C, USB
• Timers: General-purpose timers, watchdog timer, pulse counter
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The EFM32LG940F128-QFN64T has a total of 64 pins, each serving a specific purpose. The pin configuration includes digital I/O pins, analog input pins, communication interface pins, and power supply pins. For a detailed pinout diagram and description, refer to the product datasheet.

Functional Features

Low Power Modes

The EFM32LG940F128-QFN64T offers various low power modes, allowing the microcontroller to operate in a highly energy-efficient manner. These modes include sleep mode, deep sleep mode, and stop mode.

Integrated Peripherals

This microcontroller integrates several peripherals, such as UART, SPI, I2C, and USB interfaces, enabling seamless communication with external devices.

High-Performance Processing

With its ARM Cortex-M3 core and clock frequency of up to 48 MHz, the EFM32LG940F128-QFN64T delivers high-performance processing capabilities for demanding applications.

Analog-to-Digital Conversion

The built-in 12-bit ADC allows accurate conversion of analog signals into digital data, making it suitable for applications that require precise measurements.

Advantages and Disadvantages

Advantages

• Low power consumption enables longer battery life in portable devices.
• High-performance processing ensures efficient execution of complex tasks.
• Integrated peripherals simplify system design and reduce component count.
• Small form factor saves board space in compact designs.
• Wide operating voltage range provides flexibility in different power supply scenarios.

Disadvantages

• Limited flash memory and RAM may restrict the complexity of applications.
• The QFN64 package may require specialized soldering techniques.

Working Principles

The EFM32LG940F128-QFN64T operates based on the ARM Cortex-M3 architecture. It executes instructions stored in its flash memory, interacts with peripherals through various communication interfaces, and processes data using its integrated core and memory resources.

Detailed Application Field Plans

The EFM32LG940F128-QFN64T is well-suited for a wide range of embedded applications, including but not limited to: - Internet of Things (IoT) devices - Wearable technology - Home automation systems - Industrial control systems - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

• EFM32LG940F128-QFP64: Similar to the QFN64 package, but with a different pin configuration.
• EFM32LG940F256-QFN64T: A higher memory variant of the same microcontroller in the QFN64 package.
• EFM32LG990F256-QFP100: A similar microcontroller with increased flash memory and a different package.

These alternative models offer similar functionality but may vary in terms of memory capacity, pin configuration, or package type.

In conclusion, the EFM32LG940F128-QFN64T is a versatile microcontroller that combines low power consumption, high performance, and integrated peripherals. Its compact size and wide operating voltage range make it suitable for various embedded applications. While it has limitations in terms of memory capacity, it offers several advantages such as energy efficiency and simplified system design.