Re: Erasing OTP's and EPROMS by heat?


<gpratt@xxxxxxxxxxxxxxxx> wrote in message
news:1158544995.721400.199290@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I once heard that if you heat up an EPROM in an oven to a sufficient
extent then the leakage of the cells increase to the point that the
stored charge is discharge and the EPROM is effectively erased. Would
this really work? The reason I need to know is that I just bought 1000
OTP microcontrollers for a very good price from China but every one of
them is already programmed with 00 to FF sequentially for the whole
EPROM space. If I can possible save them, then good but otherwise they
are just rubbish now and I have lost my money :-( The part number is
MC68HC705J1ACP.

They have no windows? Wasn't there a theory that X-Rays would erase them?
You can't add an external ROM?










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