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???
01/27/04 20:42
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#63436 - RE: erased EPROMs
Responding to: ???'s previous message
Erasure of EPROMs usually leaves FF not 00 ? Is this not the same for the windowed CPUs ?

Yes, erasure leaves FFH's for all EPROMs except the ancient 1702, which reads all zeros after erasing.

PS Use the P89C52RX2 instead. Fewer bugs.

Thanks for the tip, though I thought the "89C" series had been superceded by the newer "89S" series??

List of 16 messages in thread
TopicAuthorDate
AMD 8751H lock bit            01/01/70 00:00      
   RE: AMD 8751H lock bit            01/01/70 00:00      
      RE: AMD 8751H lock bit            01/01/70 00:00      
         RE: AMD 8751H lock bit            01/01/70 00:00      
            RE: erasing 8751H lock bit            01/01/70 00:00      
               RE: erasing 8751H lock bit            01/01/70 00:00      
                  RE: erasing 8751H lock bit            01/01/70 00:00      
                     RE: 8751H lock bit doesn\\\'t erase            01/01/70 00:00      
                     RE: curiosity            01/01/70 00:00      
                        RE: curiosity            01/01/70 00:00      
                        RE: AMD 8751H & Needham PB-10 adapter            01/01/70 00:00      
                  RE: erased EPROMs            01/01/70 00:00      
                     RE: erased EPROMs            01/01/70 00:00      
                        RE: erased EPROMs            01/01/70 00:00      
                           OK, rephrase            01/01/70 00:00      
                              RE: OK, rephrase            01/01/70 00:00      

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