Pins |
14 |
14 |
14 |
SRAM |
128 bytes |
256B |
512B |
Flash |
2 KB |
4 KB |
8 KB |
EEPROM |
64 bytes |
128B |
128B |
Max. frequency (MHz) |
20 |
20 |
20 |
16-bit Timer/Counter type A (TCA) |
1 |
1 |
1 |
16-bit Timer/Counter type B (TCB) |
1 |
1 |
1 |
12-bit Timer/Counter type D (TCD) |
1 |
1 |
1 |
Real-Time Counter (RTC) |
1 |
1 |
1 |
USART |
1 |
1 |
1 |
SPI |
1 |
1 |
1 |
TWI (I2C) |
1 |
1 |
1 |
ADC |
1 |
1 |
1 |
ADC channels |
10 |
10 |
10 |
DAC |
1 |
1 |
1 |
AC |
1 |
1 |
1 |
Peripheral Touch Controller (PTC)(1) |
No |
No |
1 |
PTC number of self capacitance
channels(1) |
- |
- |
6 |
PTC number of mutual capacitance
channels(1) |
- |
- |
9 |
Configurable Custom Logic |
1 |
1 |
1 |
Window Watchdog |
1 |
1 |
1 |
Event System channels |
6 |
6 |
6 |
General purpose I/O |
12 |
12 |
12 |
External interrupts |
12 |
12 |
12 |
CRCSCAN |
1 |
1 |
1 |