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???
09/28/06 15:21
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 		 #125293 - not QUITE hopeless
Responding to: ???'s previous message
Perhaps we shall note also that the X2 is hopelessly obsolete

P89C51X2BN/00 DIL-40 Production SOT129-1 Pb-Free MSL=1
P89C51X2BA/00 PLCC-44 Discontinued SOT187-2
P89C51X2BBD/00 LQFP-44 Discontinued SOT389-1
P89C51X2FA/00 PLCC-44 Discontinued SOT187-2

not QUITE hopeless If he uses the DIL version. However the discontinuation of the rest should raise a huge warning flag.

Erik

List of 46 messages in thread
TopicAuthorDate
what next after 8051?            01/01/70 00:00      
   Should be in Chat!            01/01/70 00:00      
      ARM7            01/01/70 00:00      
         not 5-volts!            01/01/70 00:00      
            not 5 volts?            01/01/70 00:00      
               Not exactly ...            01/01/70 00:00      
                  "real-world" or "old-world"?            01/01/70 00:00      
                     can't deny it ...            01/01/70 00:00      
      chat            01/01/70 00:00      
         No, not that chat!            01/01/70 00:00      
   DS80C390            01/01/70 00:00      
   Current processor?            01/01/70 00:00      
      after 8051            01/01/70 00:00      
         Nothing to do with ARM            01/01/70 00:00      
         Why 8051?            01/01/70 00:00      
            Crystal            01/01/70 00:00      
            Crystal            01/01/70 00:00      
               You didn't answer the question!            01/01/70 00:00      
                  some thoughts            01/01/70 00:00      
                     Needs more thought!            01/01/70 00:00      
               you say you need performance, are you even thin            01/01/70 00:00      
                  only 20MHz in the 6-clock mode            01/01/70 00:00      
                     only 20MHz in the 6-clock mode            01/01/70 00:00      
                        yeah...            01/01/70 00:00      
                           not QUITE hopeless            01/01/70 00:00      
                        the whole thread seems a waste of effort            01/01/70 00:00      
                           Understatement!            01/01/70 00:00      
         you might want to stick to '51... or not...            01/01/70 00:00      
         Why that crystal frequency?            01/01/70 00:00      
   that is SOME design            01/01/70 00:00      
      Strange Design            01/01/70 00:00      
         an example            01/01/70 00:00      
            bugger..            01/01/70 00:00      
               They had an 8-pin and a 14-pin PIC, didn't they?            01/01/70 00:00      
   ALL of the above is a pie in the sky            01/01/70 00:00      
      Maybe it is for a PABX?            01/01/70 00:00      
      DS80C390            01/01/70 00:00      
         I thought that, too. Why dig deeper?            01/01/70 00:00      
            What does Sandeep Gupta say?            01/01/70 00:00      
               8051 >>> ARM            01/01/70 00:00      
                  Look at the code before changing cpu            01/01/70 00:00      
                  Sandeep Gupta must be a manager            01/01/70 00:00      
                     Blinded by the problem            01/01/70 00:00      
      5V ARM            01/01/70 00:00      
         Well, that's interesting!            01/01/70 00:00      
   have you considered a multiprocessor            01/01/70 00:00      

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