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???
03/20/06 13:55
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#112574 - intel
Responding to: ???'s previous message
Much of the numbering schemes used in '51s and also memories can be tracked back to intel.
The RD2 for example, it started when they made the 80C51FA, which evolved through 80C51Rx and the various Philips markings (RD+, very inventive).
The first digit, 8 for processor/2 for memory; and second digit, denoting 0 for maskROM, 7 for EPROM and 9 for FLASH, originates at intel, too; as well as the middle "C" for CMOS.
But certainly there are marketing considerations, too, when a manufacturer starts a totally weird numbering scheme. I believe, Cygnal wanted to make their products searchable via internet when they included 80C51 in each product number.

JW


List of 8 messages in thread
TopicAuthorDate
Stack > 128 ?            01/01/70 00:00      
   read the "bible"            01/01/70 00:00      
      was (and is) true but beware            01/01/70 00:00      
         intel            01/01/70 00:00      
            Intel was first            01/01/70 00:00      
   Stack            01/01/70 00:00      
      thet's ADuC specific            01/01/70 00:00      
      total ngobbelygook            01/01/70 00:00      

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