MCHPATSAMD21J16B-AZVAO
Overview
The ATSAMD21J16B-AZVAO is a Microchip SAM D21 family ARM Cortex-M0+ microcontroller in a 64-pin TQFP package. It includes 64 KB of Flash and USB support, making it a solid fit for compact embedded control and USB-enabled designs. The extended temperature rating makes it suitable for a wider range of industrial and field applications.
Why Choose This Part
This device combines a simple Cortex-M0+ core with integrated USB, which can reduce external component count in compact designs. The 64-pin package gives enough I/O for moderate peripheral integration without jumping to a larger MCU class. It is also part of a widely supported Microchip ecosystem, so there are mature tools, libraries, and board support options available.
Applications
Getting Started
Develop with Microchip MPLAB X IDE and the XC32 toolchain, or use Arduino support if you are working in a maker-oriented flow. For evaluation, look for SAM D21-based development boards that expose USB and a debug header, since a debugger makes bring-up much easier than relying on USB-only bootloading. Start by validating clocking, USB enumeration, and pin muxing early in the design, as those are common integration points on this family.
Dev Boards
Development boards and breakout modules featuring the ATSAMD21J16B-AZVAO or compatible chips — ready to use for prototyping.
SAMD21J Family
| Part Number | Difference | Stock |
|---|---|---|
| ATSAMD21J18A-AFT | TQFP-64 · 256KB Flash | 15,486 |
| ATSAMD21J17D-AZVAO | 7D-AZVAO | 295 |
| ATSAMD21J17D-MZVAO | 7D-MZVAO | 240 |
| ATSAMD21J18A-AZVAO | 8A-AZVAO | 286 |
| ATSAMD21J18A-MUT | 8A-MUT | 13,536 |
| ATSAMD21J15B-MFT | 5B-MFT | 10,941 |
Also Consider
STMicroelectronics
- A Cortex-M0 USB-capable alternative from STM32 with broad development tool support.
