DS9627
(RS-232 SERIAL PORT DEVICES)
Dual Line Receiver

           +-----------+
HYSTERESIS |1  +--+  16| V+
     OUT A |2        15| OUT B
  STROBE A |3        14| STROBE B
        NC |4  DS96  13| NC
     -IN A |5   27   12| -IN B
        RA |6        11| RB
     +IN A |7        10| +IN B
       GND |8         9| V-
           +-----------+