I did this schematic view of the three Nanos in ExpressPCB, a free PCB design package. I am doing a tutorial that demands a schematic with a Nano 18. I figured if I had to create a library component for the Nano 18, I might as well do all three at the same time. You can download and print these, then you'll have pinouts for all Nanos in one place. Also, you can see which PIC is used for a model, which PIC pins are used for each P-number, and what functions are available in the PIC for each. Might be handy!

The P-numbers are also listed in square brackets ("[]") in the signal names for each pin, as well as the outer name flags.
You'll notice a signal name with the "*" in it, "MCLR*" in this case. This means "low-true signal".
If you use, or plan to use, ExpressPCB, and you want any or all these library components, contact me from here with an email and I'll send it/them to you.
Later.
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The Three Nanos.JPG [ 259.11 KiB | Viewed 382 times ]