DAQ93P03

 The  DAQ93P03  is  a  6  channel  digital  sensor preconditioning  circuit  to  interface  external mechanical switches  or  inductive/conductive proximity  switches  to  TTL  circuits.  The  chip  itself consist  of  internal  Schmitt  Triggers  to  shape  the external  On-Off  level  input,  moreover,  RC  filter function is also integrated inside the chip to eliminate sharp  noises  carried  by  the  external  sensors.  No external filter should be used for DAQ83Q03 since it has  integrated  digital  filter  itself,  but  external  filter circuit has  to be used  for 8253/8254  counters. The filter  function can be achieved by connect  filter pins to the ground of DAQ93P03.