The terminators are just resistor packs (arrays) for passive termination. 221/331 means 22 x 10^1 / 33 x 10^1, thus 220/330 Ohms.
In an A3000 you'd need sets of 8 of the ZIP chips - each one is 4 bit wide, 4 x 8 = 32. I could use a set of 514402 - but they're too beaten up, even for me. ;-)
