| Base Part Number | ATSAMD20J16 |
| Connectivity | I |
| Core Processor | ARM |
| Core Size | 32-Bit |
| Data Converters | A/D 20x12b; D/A 1x10b |
| EEPROM Size | - |
| Manufacturer Part Number | ATSAMD20J16B-MN |
| Manufacturer Standard Lead Time | 12 Weeks |
| Mounting Type | Surface Mount |
| Number of I/O | 52 |
| Operating Temperature | -40 |
| Oscillator Type | Internal |
| Package / Case | 64-VFQFN Exposed Pad |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 8K x 8 |
| Series | SAM D20J |
| Speed | 48MHz |
| Standard Package | 260 |
| Supplier Device Package | 64-VQFN (9x9) |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V |