AVR-Chat

Stefan Trethan wrote:
> 
> On Thu, 03 Feb 2005 08:27:55 -0800, Bruce Parham <obparham@jpl.nasa.gov>
> wrote:
> 
> >
> > Well I can and did. If you look at the AVR component and count the pins,
> > you'll see
> > that pins 17, 18, 38 and 39 are missing. Atmel seems to thing these pins
> > should be
> > connected to Vcc and GND. It might help...
> > Bruce
> 
> orcad has power pins not visible per default.
> 
> ST
> 

Yes and it a feature that should never be used because of this exact kind of problem.

If a component has too many pins to fit nicely on a component section, you can make it a
heterogeneous part and put signals in one or more sections and power/gnd pins in 
another or other sections. Trust me on this, my Xilinx parts library has parts
with over 1500 pins. No way would that be possible on a single section - so divide
and conquer...

Bruce