ATSAMD21E17D-MU Microchip Technology IC MCU 32BIT 128KB FLASH 32QFN


The ATSAMD21E17D-MU by Microchip Technology is a 32-bit ARM Cortex-M0+ microcontroller known for its low power consumption and high performance. Here are the details specific to this microcontroller:


  • Manufacturer: Microchip Technology
  • Part Number: ATSAMD21E17D-MU
  • Type: MCU (Microcontroller Unit)
  • Architecture: 32-bit ARM Cortex-M0+
  • Flash Memory: 128KB
  • RAM: 16KB
  • Operating Voltage Range: 1.62V to 3.63V
  • Package/Case: 32-QFN (Quad Flat No-leads)
  • Features: 32-bit ARM Cortex-M0+ Core, 16KB RAM, 128KB Flash, Event System, Advanced Analog, SERCOM, 12-bit ADC, 10-bit DAC, 6-channel DMA, Serial Communication, SPI, I2C, UART, USB, 3 Timers, RTC
  • DataSheet



The ATSAMD21E17D-MU is suitable for a wide range of embedded applications where a balance of low power, high performance, and a rich set of peripherals is crucial.


This microcontroller is well-suited for a variety of applications including:

  • Internet of Things (IoT) devices
  • Wearable electronics
  • Consumer electronics
  • Smart home automation
  • Industrial automation and control
  • Sensor nodes
  • Edge computing devices

Development and Prototyping:

Microchip provides a comprehensive development ecosystem for this microcontroller family, including Atmel Studio, development boards, and corresponding support documents. Additionally, there are various evaluation kits and tools to support development and prototyping efforts.


The ATSAMD21E17D-MU boasts a robust set of features including advanced analog peripherals, digital communication interfaces (SERCOM, SPI, I2C, UART, USB), and a rich set of timers, making it suitable for versatile applications needing advanced control and data processing capabilities.

Low-Power Operation:

The ATSAMD21E17D-MU is designed for low-power operation, crucial for energy-efficient and battery-powered applications.

The ATSAMD21E17D-MU is a compelling platform for developers seeking a powerful, energy-efficient microcontroller solution with a wide range of features. As always, it is essential to refer to the latest datasheets and documentation to confirm the MCU's suitability for a specific project.