MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 87C64 and GQ-4X

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prj Posted - 08/17/2011 : 14:59:23
Hello,

I have a pretty rare chip that I need to write - 87C64, and the GQ-4X does not seem to support it at present.
Can support be added for it?

Unlike 87C257, it does not have a transparent mode at all...
I have an old original Willem programmer, and that one supports 87C256, but the presence of PGM (write strobe) pin seems to make any attempt at making an adapter impossible.

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