1Mx4 DRAM DIPs

[Keith Monahan]

Hi,

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
non-parity

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.

Keith