I was searching google for what an OC direction was on a pin, and came acrossed this excellent library design tutorial:
http://www.hcilab.org/resources/boardla … design.htm
If anyone can tell me what OC and PAS and SUP direction types are that’d be helpful!
PAS is passive, SUP is supply, no idea what OC is.
Open Circuit?
Leon
Open Collector
The collector of an NPN or drain of an N channel.
Current sink only, no current source.
May be used for bidirectional data busses (IIC) and LED/relay drivers.
Classic OC chips are 7405, 7406, 7407, 7417, 74LS47, 74LS145, ULN200x, ULN280x
Awesome.
I still think we should try to get that PCB Layout forum made.