19 Timer/Counter 0, 1, 3, 4 Prescalers

The 8-bit Timer/Counter0 (TC0) , 16-bit Timer/Counters 1, 3, 4 (TC1, TC3, and TC4) share the same prescaler module, but the Timer/Counters can have different prescaler settings. The following description applies to: TC0 , TC1 ,TC3 , TC4.