ATSAMD21G18A-AUT

Introduction

The ATSAMD21G18A-AUT is a microcontroller belonging to the family of ARM Cortex-M0+ based microcontrollers. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Overview

• Category: Microcontroller
• Use: The ATSAMD21G18A-AUT is widely used in embedded systems, IoT devices, and consumer electronics due to its low power consumption and high performance.
• Characteristics: It features a 32-bit ARM Cortex-M0+ processor, 256KB of flash memory, 32KB of SRAM, and various communication interfaces such as I2C, SPI, UART, and USB.
• Package: The ATSAMD21G18A-AUT is available in a compact surface-mount package.
• Essence: Its essence lies in providing a balance between performance and power efficiency for a wide range of embedded applications.
• Packaging/Quantity: It is typically supplied in tape and reel packaging with varying quantities depending on the supplier.

Specifications

• Processor: ARM Cortex-M0+
• Flash Memory: 256KB
• SRAM: 32KB
• Communication Interfaces: I2C, SPI, UART, USB
• Operating Voltage: 1.62V to 3.63V
• Operating Temperature: -40°C to 85°C
• Clock Speed: Up to 48MHz
• Package Type: QFN, QFP

Detailed Pin Configuration

The ATSAMD21G18A-AUT has a total of 64 pins, including GPIO, analog input, power, and ground pins. The detailed pin configuration can be found in the official datasheet provided by the manufacturer.

Functional Features

• Low Power Consumption: The microcontroller is designed for low power operation, making it suitable for battery-powered devices.
• Rich Peripheral Set: It offers a wide range of peripherals including timers, PWM channels, ADC, DAC, and more, enabling versatile system integration.
• Security Features: Built-in security features such as hardware cryptography accelerators enhance data protection in connected applications.

Advantages and Disadvantages

Advantages

• Low power consumption
• Rich peripheral set
• Enhanced security features
• Compact package size

Disadvantages

• Limited processing power compared to higher-end microcontrollers
• Limited memory for certain applications

Working Principles

The ATSAMD21G18A-AUT operates based on the ARM Cortex-M0+ architecture, executing instructions and handling data to perform various tasks within embedded systems. It interacts with external components through its GPIO, communication interfaces, and peripherals to carry out specific functions as per the programmed instructions.

Detailed Application Field Plans

The microcontroller finds extensive use in applications such as: - IoT devices - Wearable technology - Home automation - Industrial automation - Sensor nodes - Smart appliances

Detailed and Complete Alternative Models

• ATSAMD21E18A: A lower memory variant of the same microcontroller family
• STM32F030C6T6: A comparable microcontroller from a different manufacturer
• PIC32MX250F128B: An alternative microcontroller with similar capabilities

In conclusion, the ATSAMD21G18A-AUT offers a compelling balance of performance, power efficiency, and feature set, making it a popular choice for a wide range of embedded applications.

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