ATSAML21J18A-AUT

Product Overview

• Category: Microcontroller
• Use: Embedded systems, Internet of Things (IoT) devices
• Characteristics: Low-power, high-performance, secure
• Package: QFN-48
• Essence: ARM Cortex-M0+ based microcontroller
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Architecture: 32-bit ARM Cortex-M0+
• Clock Speed: Up to 48 MHz
• Flash Memory: 256 KB
• SRAM: 32 KB
• Operating Voltage: 1.62V to 3.63V
• Digital I/O Pins: 36
• Analog Input Pins: 14
• Communication Interfaces: UART, SPI, I2C, USB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ATSAML21J18A-AUT microcontroller has a total of 48 pins. The pin configuration is as follows:

• Pin 1: VDDANA (Analog power supply)
• Pin 2: GND (Ground)
• Pin 3: PA00 (General-purpose I/O)
• Pin 4: PA01 (General-purpose I/O)
• ...
• Pin 48: PB15 (General-purpose I/O)

Functional Features

• Low-power consumption for extended battery life
• High-performance ARM Cortex-M0+ core for efficient processing
• Secure boot and encryption features for enhanced system security
• Rich set of communication interfaces for seamless connectivity
• Flexible I/O pins for versatile application development
• Extensive range of peripherals for diverse functionality

Advantages and Disadvantages

Advantages: - Low-power operation makes it suitable for battery-powered devices - High-performance core enables efficient processing of complex tasks - Secure boot and encryption features enhance system security - Versatile I/O pins allow for flexible application development

Disadvantages: - Limited flash memory and SRAM compared to higher-end microcontrollers - Relatively small number of digital and analog I/O pins

Working Principles

The ATSAML21J18A-AUT microcontroller is based on the ARM Cortex-M0+ architecture. It operates at a clock speed of up to 48 MHz and is designed to provide low-power operation while delivering high performance. The microcontroller incorporates various peripherals and communication interfaces, allowing it to interface with external devices and sensors. It can be programmed using various development tools and software frameworks.

Detailed Application Field Plans

The ATSAML21J18A-AUT microcontroller finds applications in various fields, including:

1. Internet of Things (IoT) devices: The low-power consumption and secure features make it suitable for IoT applications such as smart home devices, environmental monitoring systems, and wearable devices.
2. Industrial automation: The high-performance core and versatile I/O pins enable the microcontroller to control and monitor industrial processes, machinery, and equipment.
3. Consumer electronics: The microcontroller can be used in products like remote controls, gaming consoles, and portable devices due to its low-power operation and rich set of communication interfaces.

Detailed and Complete Alternative Models

1. ATSAMD21G18A: Similar to ATSAML21J18A-AUT but with lower flash memory and SRAM capacity.
2. ATSAML22J18A: An upgraded version with additional features such as more I/O pins and higher clock speed.
3. ATSAMD51J19A: A higher-end microcontroller with increased flash memory, SRAM, and processing power.

These alternative models offer different specifications and capabilities, allowing developers to choose the most suitable microcontroller for their specific application requirements.

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