deciphering memory chips

From: Pete Turnbull <>
Date: Mon Jan 26 16:46:21 2004

On Jan 26, 11:41, Teo Zenios wrote:

> I have an old matrox Ultima + VLB card that has 2mb vram (consisting
of 8 x KM428C25J-6 chips) and has 8 more sockets for 2mb more memory
(the type where the chip pins are curled around and point to the bottom
of the chip)

If you really meant KM428C256 rather than KM428C25, I've found an SGI
document that says a certain controller was implemented with the
following VRAMs, so presumably they're equivalents or nearly so:

Toshiba TC528257
Mitsubishi M5M482256
Hitachi HM538253
Micron MT42C8255
Fujitsu MB8128xx
NEC uPD482234
TI TMX55160
Vitelec V53C851
Samsung KM428C256

Pete						Peter Turnbull
						Network Manager
						University of York
Received on Mon Jan 26 2004 - 16:46:21 GMT

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