PIC1661, PIC1671, PIC1684 MicroChip PIC microcontrollers. +----------+ RA2 |1 +--+ 18| RA1 RA3 |2 17| RA0 RA4 |3 16| X1 /RST |4 PIC 15| X0 GND |5 16C61 14| VCC RB0 |6 16C71 13| RB7 RB1 |7 16C84 12| RB6 RB2 |8 11| RB5 RB3 |9 10| RB4 +----------+ [This information is part of the GIICM]