Can anyone say what the advantages and disadvantages of having a high sink output? and the same for a source output?

Thanks

 

Every output is meant to drive a load. The input pin that is being driven is a load.
You need to make sure that the requirements of the load are met. To do this you need to examine the datasheet of the load or input device.

Check this out:

http://www.ti.com/lit/an/slva485/slva485.pdf

If this is too much reading, jump to section 7 Conclusion and the two paragraphs before that.

 

Can anyone say what the advantages and disadvantages of having a high sink output? and the same for a source output?

Thanks

What in relation to? TTL/CMOS, PLC, Picmicro?
Max.

 

What in relation to? TTL/CMOS, PLC, Picmicro?
Max.

its related to TTL/CMOS

 

Higher load-driving circuits are generally associated with slower and lower gain than their lower load-driving counterparts (faster and higher gain).

This assumes circuits (or chips) both are of similar era (moment in time)