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???
05/31/07 12:18
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#140104 - a known practice, but do not rely on it
Responding to: ???'s previous message
I was wondering also if the p89lpc925s I have are repackaged 935s or 936s
A known practice, but do not rely on it. This is not the first time such has happened (not a NXP thing, they all do it).

HOWEVER, it has also been known that chips that pass all tests except one have been relabelled with the number of a part where the feature that did not pass the test is not 'supposed' to be there. Some of us remember '31s that had a mask program in them because they were relabelled '51s where the maks program failed.

THUS, if you find more in a chip than you expect, DO NOT expect the 'bonus feature' to be fully operational.

Erik

List of 19 messages in thread
TopicAuthorDate
p89lpc925 with xdata?            01/01/70 00:00      
   Correction: p89lpc925 with xdata?            01/01/70 00:00      
      it is quite common (always?) that ...            01/01/70 00:00      
      see pg. 3 of the datasheet            01/01/70 00:00      
         oodles and bunches            01/01/70 00:00      
            Can you point me to ONE?            01/01/70 00:00      
               I just pointed you to two (groups) with 8k            01/01/70 00:00      
               What is "Internal"?            01/01/70 00:00      
                  quite so! it's logical vs physical            01/01/70 00:00      
                     page 13 of the user manual            01/01/70 00:00      
                        that's really interesting            01/01/70 00:00      
                           "a picture is worth a thousand words"            01/01/70 00:00      
                              even the picture is misleading            01/01/70 00:00      
         p89lpc938 has 512 bytes of XDATA            01/01/70 00:00      
            Yes, but the lpc 925 has only 256 bytes            01/01/70 00:00      
               p89lpc925 with 256 data + 512 xdata?            01/01/70 00:00      
                  put your glasses on            01/01/70 00:00      
                     P89LPC925FN 20-dip package            01/01/70 00:00      
                        a known practice, but do not rely on it            01/01/70 00:00      

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