Wanted 5101 sram

[ronnie dent]

Hi guys looking for some good 5101 ram? I bought some philips branded stuff from China but it's not up to the job! this is for a Nintendo video game pcb and not for pinball so the boards have a few of them fitted. best I can find is in the states but expensive shipping plus import duties put me off.

Thanks Ronnie

[Laszo]

3,95 euro at flipperwinkel.nl

[ronnie dent]

Thanks, will have a look

[ronnie dent]

3,95 euro at flipperwinkel.nl

Ah I have heard the Philips ram does not work in the old video games so those are not suitable but thanks for pointing them out

Ronnie

[Laszo]

To fast?

[ronnie dent]

To fast?

I'm not sure! but someone said they fail self test in Defender? but the one's I bought from China which are marked Philips do work but the graphics have a slight glitch but I'm sure these are fake and not genuine

Ronnie

[Laszo]

These philips rams are @150ns way to fast for poor old defender  you need to find yourself some inferieur ones running at 600 ns or even slower. 

[level42]

To fast?

I'm not sure! but someone said they fail self test in Defender? but the one's I bought from China which are marked Philips do work but the graphics have a slight glitch but I'm sure these are fake and not genuine

Ronnie

Hah, Philips stopped manufacturing chips in 2006 when they sold (yet again) their factory to private equity (a.k.a vultures) consortium and the name changed to NXP.



Even worse: I am pretty damn sure that Philips actually never manufactured RAM IC's !

Do a google on "Philips MSX inside", the only (if any at all) Philips chips you'll find are logic IC's like 74 series, the RAMs are all OKI, Samsung etc.

This quote from wikipedia seems to confirm that:
"NXP is currently the fifth-largest non-memory semiconductor supplier globally"

[automark]

And this?
http://www.ebay.de/itm/PCD5101-General-Purpose-Static-RAM-IC-/301788100627

[Laszo]

And this?
http://www.ebay.de/itm/PCD5101-General-Purpose-Static-RAM-IC-/301788100627

These are philips ram, which by the way where made in Nijmegen, the Netherlands at there mos2 factory as far as I know.

[level42]

Ah, so they _did_ do RAM ? mmm, first time I've seen Philips RAM.....never too old to learn


I still like that they created the factory there to look like a DIP chip (it's almost ancient today )

[Laszo]

That is the mos3 factory build for the superchip that costed billions and never was. From 1984 till they pulled the plug in 1990 philips tried to beat the Japanese with their sRam project.