RE: EPROM manufacturer and device IDs

[Shannen@grolen.com]

GSorry, Mike.  You're not the first one to think of that one. ; )  I've
been hitting the pc salvage stores around here for a while.  Old cards
are less than a dime a dozen.
Now if ya can find the eprom holders.....
Shannen
M>I found a rich resource for eproms.....heh he he

GM>Got about 500 used eproms now....
GM>Found out that puters use them everywhere..  so I whent to my buddies boxes
GM>of used puter parts.. 386 and 486 motherboards use 2 256k eproms for rom
GM>high and rom low..
GM>Also a lot of modems and vidio card use them.. so I've started collecting
GM>modems, video cards ect... been erasing like a bastard.. so far they all
GM>check out fine afeter erasure...:-)
GM>Just some info for you real cheap guys like me:-) (either that or ya can't
GM>mail for mail order <grin>

GM>Dad's gonna wonder why hydro bill is thru roof..

GM>Oh btw.. before I had the eraser.... I used to go to the bank and use their
GM>counterfit checker.. took about 20min to erase.. after trial and error... I
GM>was told this doesn't work.. but it does!!!

GM>He he eh ...I'm part portugues/part dutch/ and part scotch......he hye he
GM>hehmm

GM>(I'm sure dopey is going" that's  aheluva good idea  huh hu hu hugh heolp)
GM>while doc is smashing a 730 against his head....repeating idiot over and
GM>over....) :-)

GM>am I close??? Heh he

GM>Mike Rolica
GM>Plant A,
GM>Magnesium Products Division
GM>Strathroy

GM>(519)-245-4040  Ext. 244



GM>	-----Original Message-----
GM>	From:	Ludis Langens [SMTP:ludis@cruzers.com]
GM>	Sent:	Wednesday, July 19, 2000 6:03 PM
GM>	To:	gmecm
GM>	Subject:	EPROM manufacturer and device IDs

GM>	Does anyone have a handy list of EPROM identification codes?  My new
GM>	programmer can access, display, and check the codes, but it doesn't
GM>tell
GM>	me what they mean.  I have to keep trying various manufacturers and
GM>	device types until the programmer doesn't complain (or turn off the
GM>checking).

GM>	In a related matter, the EPROM codes have let me confirm several GM
GM>	vendor codes.  980 is Texas Instruments.  5012 is Intel.  014 is
GM>	Fairchild and National Semiconductor.

GM>	My latest batch of GM EPROMs contained a TI 27128, two TI 27C128's,
GM>a
GM>	Fairchild 27C256, and a NatSemi 27C32B.  The 27C32B has a date code
GM>from
GM>	1992.  I have another 27C32B also from 1992.  Several other vendor
GM>014
GM>	2732 type EPROMs in my collection don't contain an ID code.  This
GM>means
GM>	they might be a 2732, 27C32, or a 27C32H.  Two of these have
GM>programmed
GM>	just fine as 27C32H's.  The H suffix means a 27C32 that programs
GM>with 10
GM>	ms pulses, instead of the normal 50 ms.

GM>	FYI:  My old programmer couldn't program the 27C32B's.  They program
GM>	just fine with the new one.

GM>	-- 
GM>	Ludis Langens                               ludis (at) cruzers (dot)
GM>com
GM>	Mac, Fiero, & engine controller goodies:
GM>http://www.cruzers.com/~ludis/


GM>	
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