PIC1664, PIC1665, PIC1674 MicroChip PIC microcontrollers. +--------------+ /RST |1 +--+ 40| RB7 RA0 |2 39| RB6 RA1 |3 38| RB5 RA2 |4 37| RB4 RA3 |5 36| RB3 RA4 |6 35| RB2 RA5 |7 34| RB1 RE0 |8 33| RB0 RE1 |9 PIC 32| VCC RE2 |10 16C64 31| GND VCC |11 16C65 30| RD7 GND |12 16C74 29| RD6 X1 |13 28| RD5 X0 |14 27| RD4 RC0 |15 26| RC7 RC1 |16 25| RC6 RC2 |17 24| RC5 RC3 |18 23| RC4 RD0 |19 22| RD3 RD1 |20 21| RD2 +--------------+ [This information is part of the GIICM]