1Mx4 DRAM DIPs
keithvz at verizon.net
Fri Dec 25 13:12:42 CST 2009
This is my annual 1Mx4 DRAM memory chip post.
I'm looking for some old DRAM memory chips with the following specs:
20-pin DIP memory chips
(16) 1meg x 4-bit dips make up a bank of 8mb.
Should be 60-ns
Fast Page Mode
An example would be Toshiba TC514400AP-60.
Other manufacturers might use the following base part numbers:
Fujitsu MB : 814400
Goldstar GM : 71C4400
Hitachi HM : 514400
Hyundai HY : 514400
Micron MT : 4C4001
Mitsubishi M5M: 44400
I have some in surface mount (in a goofy 26/20 format), but without
small PCBs to convert, they aren't much use. There are some out there
in SOJ, also not useful. Yes, I know some old video cards might have
them, and yes, I know the Epson ActionLaser 1500's have them. I haven't
found a single source in a couple years.
There are some companies, like usbid.com, that have them. All of these
companies have $250-$500 minimum purchases, and I really don't need that
many of them. Or want to pay that much.
The form factor is important, but if I can only get EDO and 80ns, I'll
take those too. :)
Thanks and Merry Christmas.
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