3 VDD VSS RESET BKGD/MS PTA0/PIA0/TPM1CH0/TCLK/ADP0/ACMP+ PTA1/PIA1/TPM2CH0/ADP1/ACMPPTA2/PIA2/SDA/ADP2/ACMPO PTA3/PIA3/SCL/ADP3 <Value> 4 1 2 U? 8 7 6 5