Harley,
A lot of the Lynx equipment use the PIC24FJ32GA002 chip:
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LoginHow to see what PIC chip that a given product uses, go to the WIKI page (see the link on the upper bar menu for DLA above) and click on the given "Mouser Direct" link for the product you are looking for the PIC chip for. This will give you the ENTIRE Bill of Materials for all the parts on the Mouser web site, so you will have to scroll around to find the PIC for that particular piece of equipment.
One cavaet is that the Etherdongle has a surface mounted PIC and this particular PIC is pre-soldered for you as part of the COOP. However, you can still get the PIC chip from Mouser if you are so inclined.
Kurt