eproms

[Mike Rolica]

What am I looking for?? What speed ect type pn???
Mike Rolica
EXT. 260
 :-)


	-----Original Message-----
	From:	David Cooley [SMTP:n5xmt at bellsouth.net]
	Sent:	Wednesday, November 10, 1999 1:33 PM
	To:	gmecm at efi332.eng.ohio-state.edu
	Subject:	Re: eproms

	At 01:02 PM 11/10/1999 -0500, you wrote:
	>OK, so I have a 87 165 ecm with a 27c128 eprom.  Now a couple of
questions.
	>Can I huse a 27c512 eprom cause it has extra room?  What would I
have to do
	>to use this one and/ or why can't I?  Second I have asked this
question
	>before... but can I use a eeprom instead (so I don't have to erase
it uv all
	>the time) ?

	I believe pinout is the same, except several pins on the 27C128 that
are NC 
	are address lines on the 512.  Just leave those leads not connected.
(or 
	run them to a switch and put 4 programs in the chip and use the
switch to 
	select which program you want!)
	EEprom should work, just watch the pinout... if the pinout is the
same, or 
	if not, make an adapter.



	>Lastly  where would I find some blank eproms ?


	Jameco, most electronic surplus stores etc.

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