| Ordering Code | FLASH (bytes) | SRAM (bytes) | Package | Carrier Type |
|---|---|---|---|---|
| ATSAML21G16B-AUT | 64K | 8K | TQFP48 | Tape & Reel |
| ATSAML21G16B-MUT | QFN48 | |||
| ATSAML21G17B-AUT | 128K | 16K | TQFP48 | Tape & Reel |
| ATSAML21G17B-MUT | QFN48 | |||
| ATSAML21G18B-AUT | 256K | 32K | TQFP48 | Tape & Reel |
| ATSAML21G18B-MUT | QFN48 |