| Maximum CPU frequency | 24 MHz |
| SysTick timer | 1 |
| Serial Wire Debug Interface | Yes |
| Oscillators | 32.768 kHz crystal oscillator (XOSC32K) |
| 32.768 kHz internal oscillator (OSC32K) |
| 24 MHz high-accuracy
internal oscillator (OSCHF) |
| Generic Clock - GCLK | 4 |
| DMA channels | 2 |
| Event System channels | 4 |
| I/O Pins | 55 | 41 | 26 | 22 |
| External Interrupt lines | 16 and one non-maskable
interrupt (NMI) |
| Serial Communication Interfaces - SERCOM/of which
I2C is supported | 2 / 1 | 2 / 1 | 2 / 1 | 2 / 1 |
| Timer Counter - TC | 3 |
| Waveform outputs/Capture inputs channels per TC instance | 2 |
| TC Maximum and Minimum Capture | Yes |
| Timer Counter for Control - TCC (number of waveform
output channels) | 1(4) |
| Configurable Custom Logic - CCL (number of LUTs) | 1(4) |
| Analog-to-Digital Converter - ADC (channels) | 1(29) | 1(25) | 1(20) | 1(16) |
| Analog Comparators - AC | 2 |
| Real-Time Counter - RTC | 1 |
| RTC alarms | 1 |
| RTC compare values | One 32-bit value or two 16-bit values |
| Watchdog Timer - WDT | Yes |
| Memories CRC32 computation in DMAC | Yes (SRAM, Flash) |
| Brown-Out Detection - BOD | VDD, VDDCORE |
| Peripheral Touch Controller - PTC (channels) | 1(29) | 1(25) | 1(20) | 1(16) |