EFM32G840F128G-E-QFN64R

Product Overview

Category

The EFM32G840F128G-E-QFN64R 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
• Robust packaging

Package

The EFM32G840F128G-E-QFN64R 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 EFM32G840F128G-E-QFN64R is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Microcontroller core: ARM Cortex-M4
• Clock speed: Up to 48 MHz
• Flash memory: 128 KB
• RAM: 16 KB
• Operating voltage: 1.8V - 3.6V
• Digital I/O pins: 51
• Analog input channels: 12
• Communication interfaces: UART, SPI, I2C, USB
• Timers: 4 x 16-bit, 2 x 32-bit
• ADC resolution: 12-bit
• Temperature range: -40°C to +85°C

Detailed Pin Configuration

The EFM32G840F128G-E-QFN64R has a total of 64 pins, each serving a specific purpose. The pin configuration includes digital I/O pins, analog input pins, power supply pins, ground pins, and communication interface pins. For a detailed pinout diagram and description, refer to the manufacturer's datasheet.

Functional Features

Low Power Modes

The EFM32G840F128G-E-QFN64R offers various low power modes, allowing the microcontroller to operate in energy-efficient ways. These modes include sleep mode, deep sleep mode, and stop mode, enabling power optimization for battery-powered applications.

Integrated Peripherals

This microcontroller integrates a wide range of peripherals, including UART, SPI, I2C, and USB interfaces, which facilitate communication with external devices. Additionally, it features timers, an ADC, and GPIO pins, enhancing its versatility for different application requirements.

Energy Management System (EMS)

The EFM32G840F128G-E-QFN64R incorporates an Energy Management System that efficiently manages power consumption by dynamically adjusting voltage levels and clock frequencies based on the system's needs. This feature contributes to the overall energy efficiency of the microcontroller.

Advantages and Disadvantages

Advantages

• Low power consumption enables longer battery life.
• High-performance ARM Cortex-M4 core allows for efficient processing.
• Integrated peripherals reduce the need for external components.
• Small form factor saves board space.
• Robust packaging ensures durability.

Disadvantages

• Limited flash memory and RAM capacity may restrict complex applications.
• Availability of alternative models with more features or higher specifications might be desired for certain projects.

Working Principles

The EFM32G840F128G-E-QFN64R operates based on the principles of the ARM Cortex-M4 architecture. It executes instructions stored in its flash memory, utilizing the integrated peripherals to interact with external devices. The microcontroller's low power modes and energy management system contribute to its efficient operation, ensuring optimal performance while minimizing power consumption.

Detailed Application Field Plans

The EFM32G840F128G-E-QFN64R finds applications in various fields, including but not limited to: - Internet of Things (IoT) devices - Wearable technology - Home automation systems - Industrial control systems - Medical devices

Its low power consumption, integrated peripherals, and compact size make it suitable for battery-powered and space-constrained applications.

Detailed and Complete Alternative Models

While the EFM32G840F128G-E-QFN64R offers a range of features and specifications, alternative models with different capabilities are available. Some notable alternatives include: - EFM32G880F256G-E-QFP100: Offers higher flash memory and RAM capacity. - EFM32G210F128G-BGA112: Provides a smaller BGA package option. - EFM32G230F128G-QFN48: Features a lower pin count and reduced form factor.

These alternative models cater to specific project requirements and offer additional features or packaging options.

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