SAMD21J in SAM Microcontrollers Family
The SAMD21J is a series of high-pin-count, low-power microcontrollers manufactured by Microchip Technology based on the 32-bit ARM Cortex-M0+ processor. These devices feature a maximum of 64 pins, providing extensive I/O capabilities and peripheral integration. They are designed for versatile automation and control tasks, offering a balanced architecture that combines energy efficiency with an advanced peripheral set including Full Speed USB 2.0 and the Event System for offloading the CPU in complex timing tasks.
Variants in This Sub-Family
| Part Number | Difference | Stock |
|---|---|---|
| ATSAMD21J17D-AZVAO (Microchip Technology) | 7D-AZVAO | 295 |
| ATSAMD21J17D-MZVAO (Microchip Technology) | 7D-MZVAO | 240 |
| ATSAMD21J16B-AZVAO (Microchip Technology) | 6B-AZVAO | 319 |
| ATSAMD21J18A-AZVAO (Microchip Technology) | ZVAO | 286 |
| ATSAMD21J18A-MUT (Microchip Technology) | QFN (tape) | 13,536 |
| ATSAMD21J15B-MFT (Microchip Technology) | 5B-MFT | 10,941 |
Variants within the SAMD21J line are distinguished primarily by their Flash memory capacity, ranging from 32KB to 256KB, and their operational temperature ratings. Some models carry the 'VAO' suffix, indicating AEC-Q100 automotive qualification and extended temperature support up to 125°C. Packaging also varies between TQFP and QFN options, allowing designers to choose between easier prototyping or more compact, thermally efficient surface-mount footprints.
