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Author Topic: 2MB Chip RAM directly on A500 rev. 6 motherboard?  (Read 14675 times)

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Offline fiat1100d

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Re: 2MB Chip RAM directly on A500 rev. 6 motherboard?
« on: March 26, 2009, 10:15:55 AM »
Quote

alexh wrote:
A600 use AGNUS part numbers 390544 only on v1.0 motherboard. They use 318069-10(pal) and 318069-11(ntsc) on motherboards v1.3, 1.5 and 2D. No idea what the pinout differences are (if any).


As far as I know, 390544-01 and 318069-10/11 are pin compatible, since I once bought a MegAChip which had the NTSC 318069-11 and then bought on eBay a small lot of PAL 8375s. Mostly were 318069-10, but there was one 390544-01 too, and they all worked on the MegAChip. Also tried 318069-10 on A500+ and it works. Of course I had checked schematics of A600 (with 318069-10) and A500+ (with 390544-01) first :-)