8375 are newer versions of what? What Amigas work with them?

[satiropan]

since you seem very expert on all the Fat Agnus evolution, I have one question for you:
I was planning to do this 2MB Agnus chipram modification to my A2000 rev6.2:

http://mylinuxisp.com/~jdbaker/oldsite/documents/2MBAgnushack_v1.4.txt

For this I bought a 8375 390544-01 4291 20 chip from ebay, don't know which machine it came from.
But now I have the doubt: is my 2MB Agnus pin compatible with the one requested in the modification, which should be a 8372B or 8375B Agnus part number 318069-03?
And... where can I find a trustful pinout description for all these chips?
BTW, I invite you to visit my site, www.oldfab.tk and check the mods I did.
Ciao
Satiropan