(GENERAL PURPOSE RECEIVERS) Triple Line Receiver +-----------+ A1 |1 +--+ 16| VCC B1 |2 15| S1 R2 |3 14| R1 S2 |4 DS55 13| Y1 A2 |5 122 12| A3 B2 |6 11| S3 Y2 |7 10| R3 GND |8 9| Y3 +-----------+