Posted on the AnyCPU forum, at http://anycpu.org/forum/viewtopic.php?p=2315#p2315 :
Holy mackerel!! It looks like about 340 ICs (counting the mezzanine) and there might be more ICs under the big ones! I've laid out a board with 500 parts, but much of it was analog, and a lot of those were resistors, diodes, and capacitors. The IC count was only about 30. Routing buses for the one above must have been a nightmare, requiring a huge number of layers. Troubleshooting and repairing with those white and yellow wires would be quite a challenge too.
340+ ICs on one PCB!
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340+ ICs on one PCB!
http://WilsonMinesCo.com/ lots of 6502 resources
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Re: 340+ ICs on one PCB!
I like it how they ran out of room, so the SIP resistors needed to be tacked on.
Re: 340+ ICs on one PCB!
I suspect that was to fix problems after some debugging.
http://WilsonMinesCo.com/ lots of 6502 resources
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Re: 340+ ICs on one PCB!
Perhaps they didn't have pull-up / down resistors in there and had issues?
Re: 340+ ICs on one PCB!
Wow, if I counted right, that's 665 ICs on one board, assuming there aren't any on the back.
http://WilsonMinesCo.com/ lots of 6502 resources
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