In 2003, Seco created the world's first SODIMM200 based ARM module Trizeps III.
The PXA255 based Trizeps III was the first module, with integrated Ethernet and USB/Host to a small module.
It opened the industrial market for a new technology.
The older SODIMM 144 Standard is still living and even here all modules fit into the very first board build for Trizeps-I (StrongARM).
Today the SODIMM 200 form factor is used by nearly all companies building ARM based CPU modules.
Seco is still using SODIMM pinnings, which are compatible to the first module built in 2003.
Here you can find a table of pins documenting the compatibility of Seco's current module spectrum.
Excel Sheet containing pinning of current Trizeps modules and baseboards: trizeps_standard_v11.zip
Old Excel-Sheet also containing Trizeps IV(M) and Trizeps V: SODIMM200 Standard (v9)