SAM D21 MCU Overview

A rich set of peripherals, flexibility and ease-of-use combined with low power consumption make the Microchip SAM D21 Arm® Cortex®-M0+ based microcontroller series ideal for a wide range of home automation, consumer, metering and industrial applications. The SAM D21 is designed for simple and intuitive migration between SAM D devices with identical peripheral modules, compatible code and a linear address map.

Key Features

  • Arm Cortex-M0+ based MCU running up to 48 MHz
  • Up to 256 kB embedded flash and 32 kB SRAM
  • Low power consumption at < 70 µA/MHz
  • DMA and event system
  • Six (SAM D21J and SAM D21G, four in the SAM D21E) flexible serial communication modules (SERCOM)
  • Full-Speed USB Device and embedded Host
  • 12-bit ADC
    • SAM D21J: 20 channels
    • SAM D21G: 14 channels
    • SAM D21E: 10 channels
  • 10-bit DAC
  • Hardware touch support
  • QFP and QFN package options
    • SAM D21J: 64 pins
    • SAM D21G: 48 pins
    • SAM D21E: 32 pins

Block Diagram (ATSAMD21J18)

samd21-block-diagram.png

 Learn More

Explore the SAM D21 MCU:

 
Processor & Architecture
Learn more >
 
Standard Peripherals
Learn more >
 
Code Examples
Learn more >
© 2018 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.