EFM32WG940F128-QFN64T

Product Overview

Category

The EFM32WG940F128-QFN64T belongs to the category of microcontrollers.

Use

This microcontroller is designed for various embedded applications, including Internet of Things (IoT) devices, consumer electronics, industrial automation, and smart energy management systems.

Characteristics

• Low power consumption: The EFM32WG940F128-QFN64T is known for its efficient power management capabilities, making it suitable for battery-powered devices.
• High performance: With a 32-bit ARM Cortex-M4 processor running at up to 48 MHz, this microcontroller offers excellent processing power.
• Rich peripheral set: It features a wide range of peripherals, such as UART, SPI, I2C, USB, ADC, and timers, enabling seamless integration with external components.
• Extensive memory: The microcontroller has 128 KB of Flash memory and 32 KB of RAM, providing ample space for program storage and data handling.
• Small package size: The QFN64T package ensures compactness and ease of integration into space-constrained designs.

Package and Quantity

The EFM32WG940F128-QFN64T is available in a QFN64T package. It is typically sold in reels or trays, with quantities varying based on customer requirements.

Specifications

• Microcontroller core: ARM Cortex-M4
• Clock speed: Up to 48 MHz
• Flash memory: 128 KB
• RAM: 32 KB
• Operating voltage: 1.8V - 3.6V
• Digital I/O pins: 64
• Analog input channels: 12
• Communication interfaces: UART, SPI, I2C, USB
• Timers: 4 x 16-bit, 2 x 32-bit
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The EFM32WG940F128-QFN64T microcontroller has a total of 64 pins. The pin configuration is as follows:

• Pins 1-8: Digital I/O
• Pins 9-16: Analog input channels
• Pins 17-24: Communication interfaces (UART, SPI, I2C, USB)
• Pins 25-32: Timers
• Pins 33-64: Reserved for future use

For a detailed pinout diagram and pin functions, please refer to the official datasheet.

Functional Features

• Low-power modes: The microcontroller offers various low-power modes, allowing efficient power management and extending battery life in portable devices.
• Advanced peripherals: With a rich set of peripherals, including UART, SPI, I2C, and USB, the EFM32WG940F128-QFN64T enables seamless communication with external devices.
• Real-time performance: The ARM Cortex-M4 core provides excellent real-time processing capabilities, making it suitable for time-critical applications.
• Flexible memory options: The microcontroller's Flash memory and RAM can be easily expanded using external memory devices, providing flexibility for different application requirements.

Advantages and Disadvantages

Advantages

• Efficient power management for extended battery life
• High-performance ARM Cortex-M4 core
• Rich peripheral set for seamless integration
• Compact package size for space-constrained designs

Disadvantages

• Limited number of digital I/O pins compared to some other microcontrollers
• Relatively higher cost compared to entry-level microcontrollers

Working Principles

The EFM32WG940F128-QFN64T microcontroller operates based on the principles of embedded systems. It executes instructions stored in its Flash memory, interacting with various peripherals and external components to perform specific tasks. The ARM Cortex-M4 core provides the processing power required for executing these instructions, while the integrated peripherals facilitate communication and data handling.

Detailed Application Field Plans

The EFM32WG940F128-QFN64T microcontroller finds applications in various fields, including: - Internet of Things (IoT) devices: It can be used to develop smart home automation systems, wearable devices, and environmental monitoring solutions. - Consumer electronics: The microcontroller is suitable for designing portable devices, such as fitness trackers, remote controls, and gaming accessories. - Industrial automation: It can be utilized in industrial control systems, motor control units, and factory automation equipment. - Smart energy management: The microcontroller enables the development of energy-efficient solutions for smart grids, renewable energy systems, and power monitoring devices.

Detailed and Complete Alternative Models

• EFM32GG990F1024-QFP100: Similar to the EFM32WG940F128-QFN64T, this microcontroller offers a larger Flash memory capacity and more digital I/O pins.
• EFM32PG1B200F256GM48-BGA48: This alternative model features a different package