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???
02/17/05 17:11
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 		 #87816 - why?
Responding to: ???'s previous message
hi,

Peter Dannegger said:
But if you can me tell a 5V DIP 8kB ISP Flash 8051 device with 16..28 pin, I will be very happy.


Peter, could you explain? Why do you need with low-pin-count device and it must be in DIP package? I see the main reason of usage the low-pin-count derivatives is to decrease board space. Then the SO, QFP, at least PLCC may be usable. But if you use DIP package then is it so important to have only 28 pins? Why not 40 then? Where is the reason?
After all, for example T89C5115 is 5V compatible MCU51 with 16kb of flash and ISP-via-UART, IAP, x2 feature, etc. And it presents in PLCC28 package (13x13mm). With 28 pins this derivative takes board space less then AT89C4051 in DIP20 package.

Regards,
Oleg

List of 37 messages in thread
TopicAuthorDate
P89LPC922 vs AT89C2051            01/01/70 00:00      
   Sheer price            01/01/70 00:00      
      LPC price            01/01/70 00:00      
   no chance at 5V !            01/01/70 00:00      
      But requirement is for 51 series MCU            01/01/70 00:00      
         whats your problem ?            01/01/70 00:00      
            3.3 and 5            01/01/70 00:00      
            why?            01/01/70 00:00      
               money, money...            01/01/70 00:00      
                  not agree            01/01/70 00:00      
                     your choice(s)            01/01/70 00:00      
                  a concern and a yes            01/01/70 00:00      
                     5 V tolerant I/O LPC900 family            01/01/70 00:00      
                        2051 pin compatibility            01/01/70 00:00      
                           compatibility            01/01/70 00:00      
                           2051 compatibility            01/01/70 00:00      
                              pity...            01/01/70 00:00      
                                 nbot a pity            01/01/70 00:00      
                                    more details            01/01/70 00:00      
                                       Pin compatibility            01/01/70 00:00      
                                          it's nice            01/01/70 00:00      
                                             2nd source and pin kompatibility            01/01/70 00:00      
                                                second source always            01/01/70 00:00      
         51 Architecture            01/01/70 00:00      
            just a zener - naah            01/01/70 00:00      
               power nomenclature            01/01/70 00:00      
      MCU51 side            01/01/70 00:00      
         These are the options            01/01/70 00:00      
            doubt            01/01/70 00:00      
               Mr. Peter - Its not my problem            01/01/70 00:00      
   We us both 2051's and LPC's            01/01/70 00:00      
   good news            01/01/70 00:00      
      What a misery!            01/01/70 00:00      
         Atmel innovating ?            01/01/70 00:00      
            2nd source and pin kompatibility revisit            01/01/70 00:00      
               what's the fuzz            01/01/70 00:00      
                  Word is not only new products            01/01/70 00:00      

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