MCHPATSAMD21J17D-MZVAO
Overview
The ATSAMD21J17D-MZVAO is a Microchip ARM Cortex-M0+ microcontroller from the SAM D21 family. It combines a 32-bit CPU with on-chip Flash, USB support, and an extended-temperature rating in a 64-pin QFN package. This makes it a good fit for compact embedded designs that need more capability than an 8-bit MCU but still want simple power and USB integration.
Why Choose This Part
This part gives you a modern 32-bit ARM Cortex-M0+ core with Microchip's SAM D21 ecosystem, which is widely used in small embedded and USB-enabled products. The QFN-64 package keeps the footprint compact while still offering enough I/O for practical designs. Extended-temperature rating also makes it more attractive for industrial and field-deployed equipment than a typical hobby MCU.
Applications
Getting Started
Use Microchip's MPLAB X IDE with the XC32 toolchain, and the board support packages for SAM D21 devices. For evaluation, look for SAM D21-based development boards such as the Arduino Zero or compatible ATSAMD21J17D boards, then bring up the chip with SWD programming and a basic clock/USB project first. If your design uses USB, verify the clock source and startup configuration early in bring-up, since those are common integration points for this family.
Dev Boards
Development boards and breakout modules featuring the ATSAMD21J17D-MZVAO or compatible chips — ready to use for prototyping.
SAMD21J Family
| Part Number | Difference | Stock |
|---|---|---|
| ATSAMD21J18A-AFT | TQFP-64 · 256KB Flash | 15,486 |
| ATSAMD21J17D-AZVAO | AZVAO | 295 |
| ATSAMD21J16B-AZVAO | 6B-AZVAO | 319 |
| ATSAMD21J18A-AZVAO | 8A-AZVAO | 286 |
| ATSAMD21J18A-MUT | 8A-MUT | 13,536 |
| ATSAMD21J15B-MFT | 5B-MFT | 10,941 |



