MCHPATSAMD21E17D-AZVAO

Overview

The ATSAMD21E17D-AZVAO is a Microchip ARM Cortex-M0+ microcontroller from the SAM D21 family. It combines 128 KB of Flash with USB support and an extended-temperature operating range in a compact 32-pin TQFP package. This makes it a practical choice for small embedded control designs that need a simple 32-bit MCU with native USB.

Why Choose This Part

This part gives you a 32-bit ARM Cortex-M0+ core in a compact package, which is a good fit when an 8-bit MCU is too small but a larger device is unnecessary. Native USB support can reduce external component count for connected products. The extended-temperature grade also makes it more suitable for demanding environments than a standard commercial-only part.

Applications

Getting Started

For development, Microchip's SAM D21 ecosystem is commonly used with Atmel Studio or Microchip Studio, plus the ASF or Harmony framework depending on project needs. A SAM D21 Xplained Pro board or an Arduino Zero-style board is a practical way to evaluate the family before designing a custom PCB. For programming and debugging, use a compatible SWD debugger such as an Atmel-ICE or other CMSIS-DAP/J-Link class tool, and make sure your clock, USB, and bootloader settings are matched to the exact SAM D21 variant.

Dev Boards

Development boards and breakout modules featuring the ATSAMD21E17D-AZVAO or compatible chips — ready to use for prototyping.

Seeed Studio XIAO SAMD21 Seeed Technology Co., Ltd

ATSAMD21G18 XIAO SAMD21 SAM D ARM® Cortex®-M0 MCU 32-Bit Embedded Evaluation Board

Digi-Key 509 in stock

Seeed Studio XIAO SAMD21 Seeed Technology Co., Ltd

ATSAMD21G18 XIAO SAMD21 SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board

Digi-Key 3,141 in stock

Adafruit Feather M0 Express Adafruit Industries LLC

ATSAMD21G18 Feather M0 Express SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board

Digi-Key Mouser 364 in stock

Arduino Nano 33 IoT Arduino

The Arduino Nano 33 IoT with Headers (ABX00032) is a compact and versatile development board featuring the ARM® Cortex®-

Digi-Key Mouser 355 in stock

Arduino Nano 33 IoT Arduino

The Arduino Nano 33 IoT (ABX00027) is an advanced evaluation platform designed for IoT applications, featuring the 32 bi

Digi-Key Mouser 657 in stock

SAMD21E Family

Comparing specs that differ across variants. The current part is highlighted.

Also Consider

ATSAMD21G18A-AU MCHPMicrochip Technology - Same SAM D21 family with broad ecosystem support and a very common package variant for general-purpose designs.

ATSAMD21E18A-AU MCHPMicrochip Technology - A closely related SAM D21 option in the same small-package class for designs that want the same family architecture with different memory/pin options.

STM32F072C8T6 STMicroelectronics - A comparable Cortex-M0 USB-capable microcontroller from another major vendor for low-cost embedded control.