Pins |
20 |
20 |
SRAM |
2 KB |
2 KB |
Flash |
16 KB |
32 KB |
EEPROM |
256B |
256B |
Max. frequency (MHz) |
20 |
20 |
16-bit Timer/Counter type A (TCA) |
1 |
1 |
16-bit Timer/Counter type B (TCB) |
2 |
2 |
12-bit Timer/Counter type D (TCD) |
1 |
1 |
Real-Time Counter (RTC) |
1 |
1 |
USART |
1 |
1 |
SPI |
1 |
1 |
TWI (I2C) |
1 |
1 |
ADC |
2 |
2 |
ADC channels |
12+8 |
12+8 |
DAC |
3 |
3 |
AC |
3 |
3 |
Peripheral Touch Controller (PTC)(1) |
1 |
1 |
PTC number of self capacitance
channels(1) |
12XY |
12XY |
PTC number of mutual capacitance
channels(1) |
36 |
36 |
Configurable Custom Logic |
1 |
1 |
Window Watchdog |
1 |
1 |
Event System channels |
6 |
6 |
General purpose I/O |
18 |
18 |
External interrupts |
18 |
18 |
CRCSCAN |
1 |
1 |