STK600-RCUC3C2-40 Device Pin Name Atmel STK600 Pin Name PA00 PA0, TCK PA01 PA1, TDI PA02 PA2, TDO PA03 PA3, TMS PA04 PA4 PA05 PA5 PA06 PA6 PA07 PA7 PA08 PB0 PA09 PB1 PA16 PC0, AREF0 PA17 PC1 PA18 PC2 PA19 PC3 PA20 PC4 PA21 PC5 PA22 PC6 PA23 PC7 PB00 PE0, TOSC1 PB01 PE1, TOSC2 PB30 PH6, XTAL1 PB31 PH7, XTAL2 PC02 PJ2 PC03 PJ3 PC04 PJ4 PC05 PJ5 PC15 PK7 PC16 PL0 PC17 PL1 PC18 PL2 PC19 PL3 PC20 PL4 PC21 PL5 PC22 PL6 PD00 PN0 PD01 PN1 PD02 PN2 PD03 PN3 PD11 PP3 PD12 PP4, UVCON