09-02-2007 12:00 AM
09-02-2007 07:33 AM
The two power pin are hidden pins. You do not have to connect them maunally to power. Just place either VCC or VDD and DGND (digital ground) somewhere on your schematic and the connection is made to the chip in the background without having to run wires. You can hook up your test instruments (the scope for instance) by running a ground to the ground input and then placing the other probe wherever you need to measure.
I hope this helps. Have A Nice Day.