■ Features
1. Propagation delay time
   ( tPHL tPLH : TYP. 0.75ms )
2. High noise resistance type
      ( CM H, CM L : TYP. 2kV/ µ s )
3. High sensitivity
      ( IFLH : MAX. 1.5 mA )
4. Bi-directional input, 4-channel type

■ Applications
1. Programmable controllers