eproms

[David Cooley]

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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David Cooley N5XMT Internet: N5XMT at bellsouth.net
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