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Atmel SAM D21E / SAM D21G / SAM D21J Microcontrollers: Comprehensive Technical Analysis

UTMEL

Published: 29 February 2024 | Last Updated: 29 February 2024

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This technical article offers a comprehensive analysis of the Atmel SAM D21E, SAM D21G, and SAM D21J series of low-power microcontrollers utilizing the 32-bit ARM Cortex-M0+ processor. By delving into the system overview, key features, block diagram, pinout, package details, and processor architecture, this article aims to provide valuable insights into the technical capabilities of these microcontrollers.

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Product Introduction

1. Description
The Sam D21 series of microcontrollers are designed to provide a low-power, high-performance solution for a wide array of embedded applications. This section offers a detailed overview of the microcontroller series, highlighting their core components, peripheral features, power management, clock control options, and system design flexibility.

2. Features
The key features of the Atmel SAM D21E / SAM D21G / SAM D21J microcontrollers include:
- ARM Cortex-M0+ CPU running at up to 48MHz with a single-cycle hardware multiplier.
- In-system self-programmable Flash memory ranging from 32KB to 256KB, with SRAM memory varying from 4KB to 32KB.
- Flexible clock control options, including internal and external clock sources with advanced frequency locked loop.
- Low-power modes, sleepwalking peripherals, and efficient power sequence management for optimized power management.
- Advanced peripherals including DMA controller, Event System, and multiple Timer/Counters for precise control and system monitoring.
- Support for capacitive touch button, slider, and wheel user interfaces.
- Up to 52 programmable I/O pins for versatile connectivity.

3. Applications
The Atmel SAM D21E / SAM D21G / SAM D21J microcontrollers find applications in various fields, including:
- Industrial automation
- Consumer electronics
- Automotive systems
- Medical devices
- Communication systems
- Control systems

This comprehensive technical analysis provides valuable insights into the Atmel SAM D21E / SAM D21G / SAM D21J microcontrollers, covering their core features, applications, alternative considerations, and potential deployment scenarios. By delving into the technical specifications and practical use cases, engineers and developers can gain a solid understanding of these powerful microcontrollers and their applicability in diverse embedded system designs.

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