Part Number : MCT2E
Function : Optoisolator transistor output
Package : DIP 6 Pin Type
Maker : Motorola , Freescale
Pinouts : 
Description :
The MCT and MCT2E devices consist of a gallium arsenide infrared emitting diode optically coupled to a monolithic silicon phototransistor detector.
Applications
1. General Purpose Switching Circuits
2. Interfacing and coupling systems of different potentials and impedances
3. I/O Interfacing
4. Solid State Relays
5. Monitor and Detection Circuits
Datasheet PDF Download : 
Others datasheet of same file : MCT2 ,MCT-2E
