dphirschler Posted October 28, 2014 Author Share Posted October 28, 2014 OK. I had to sit on this for a while. I was confused by what looked like conflicting responses. What I think I understand is that the chip WILL work for me, just not with the 512K image. Seems this chip has a maximum capacity of 64K. Is that correct? Quote Link to comment Share on other sites More sharing options...
+Lee Stewart Posted October 28, 2014 Share Posted October 28, 2014 OK. I had to sit on this for a while. I was confused by what looked like conflicting responses. What I think I understand is that the chip WILL work for me, just not with the 512K image. Seems this chip has a maximum capacity of 64K. Is that correct? That is correct. The "512" of 27C512 means 512Kb (b = bits), not 512KB (B = bytes) as already mentioned somewhere above. ...lee Quote Link to comment Share on other sites More sharing options...
dphirschler Posted November 5, 2014 Author Share Posted November 5, 2014 On the subject of EPROM UV erasers, I found this nice project. Built an eraser into an old toolbox. http://dcroy.blogspot.com/2010/10/huge-eprom-eraser.html Quote Link to comment Share on other sites More sharing options...
dphirschler Posted November 6, 2014 Author Share Posted November 6, 2014 The three A?27C040 EPROM chips I gave to my friend programmed on his burner just fine. Not sure where that leaves me, but at least I can burn them at his house. Quote Link to comment Share on other sites More sharing options...
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