Welcome to Boardsort™ - Learn - Sell - Profit -

Need help on these ones too.

Thanks

peripheral
back

cable end
back

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D

J.w why #9 got peripheral and not anything higher. It's loaded with ICs and gold pins.

Because most vertical SIP and ZIP packages are electrical components.
So excluding those banks of components:
We have two full implementation ICs, a handful of small controllers, and a low pin count PGA socket. So aside from the questionable banks of components there’s nothing to make this any better.

If those banks turn out to be rom or ram or some other actual valuable component then the board would jump straight to high telco.

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D

BTW excluding bizarre one off chips the socket’s pin size squarely (haha pun) puts it in the sub-um manufacturing process. Making it /recent/ enough to be later than majority SIP/ZIP rom packages. Further pushing me from calling it any better. The earliest 80386 chips and the 287 were the last 1000nm series chips made. By which point dzbga was the common layout for ICs.

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D

Gotcha.

You bring light to my Qs.

It's very pleasing to finally start understanding the era of packages and components through my years of e-waste. It helps a lot to determine or point out things on boards.

I’m a retro buff.
~I use my C64 a few times a week~

Further useless detail
One thing I’ve been a huge follower of is compression of scale. Knowing pin size vs package design let’s me call some things that aren’t common enough for most to understand.
Regardless of the dating this is clearly meant to take a PFA chip from the mid 80s. Be it an x86 or a RISC chip. That sets my timeframe for compatible components to 1983-1998.
Looking at the number of components in those banks...
Even at 4KB that’s more space use than ram would require so ram is out.
That would be 16KB of ram. In 4 access “banks” using 32 Banks of pin sockets.
So aside from some expensive totally custom one off it makes no sense.
And I can’t think of a single reason to set that many ROMS on so many components. The Apollo rockets use 5 Roms per controller. If my doubts outweigh my pros I call it lower.
I won’t bank on being wrong but I’m 90-some percent sure those are copper components, not ICs.
Making it a nice heavy peripheral

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D