Hi Sean Walton,
About the4 K26 teesny prototypter wring example, you can refer to the TWRK-K65F180M board, this board contains the smallest system and the USB.
Please download the TWR-K65F180M-PWB(TWR-K65F180M Design Package),it includes schematics, bill of material and layout:
https://www.nxp.com/webapp/Download?colCode=TWR-K65F180M-PWB&Parent_nodeId=1429549938536731581270&Pa...
Wish it helps you!
If you still have question, please let me know!
Have a great day,
Kerry
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