MCHPATSAMD21J17D-AZVAO

Overview

The ATSAMD21J17D-AZVAO is a Microchip SAM D21 family 32-bit ARM Cortex-M0+ microcontroller. It is aimed at embedded designs that need a general-purpose MCU with USB support, ample flash memory, and an extended temperature range. The TQFP-64 package makes it practical for prototyping and for production designs that want a visible, hand-solderable footprint.

Why Choose This Part

This part gives you a mainstream ARM Cortex-M0+ MCU with a well-established Microchip ecosystem and USB capability in a compact TQFP package. The 128 kB flash size is useful for applications that outgrow entry-level microcontrollers but do not need the cost or complexity of a larger ARM device. The extended-temperature rating also makes it attractive for more demanding embedded environments.

Applications

Getting Started

Start with a Microchip SAM D21 development board, such as boards in the Curiosity or Xplained Pro families, to validate clocks, USB, and pin mapping before committing to a custom PCB. Use Microchip Studio or MPLAB X with the XC32 toolchain, or the Arduino SAMD core if you prefer the Arduino ecosystem. For early bring-up, verify the clock source, USB pull-up configuration, and bootloader/programming method before building out the rest of the firmware.

Dev Boards

Development boards and breakout modules featuring the ATSAMD21J17D-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

SAMD21J Family

Also Consider

ATSAMD21G18A-AU MCHPMicrochip Technology - A closely related SAM D21 MCU in a different package and memory configuration, useful when you want the same ecosystem with a more common device option.

STM32F103C8T6 STMicroelectronics - A widely used Cortex-M3 alternative for low-cost embedded designs when USB and general-purpose MCU capability are the main requirements.