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???
02/25/03 16:31
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#40038 - RE: The elusive universal board
Responding to: ???'s previous message
Hello Paul,

a typical 8052 system has a 27C256 EPROM (32K x 8, DIL28 package) and a 43256 or 62256 SRAM (32K x 8, DIL28 package).

If you have to download code through the serial port down to your micro, an addititional SRAM is needed.

As you might know, a 74HC573 Latch is needed to get the lower adress bytes...

Don't forget a reset controller! (Google for DS1810 / DS1812, maybee you like them.)

Mike

List of 22 messages in thread
TopicAuthorDate
maximum amount of memory            01/01/70 00:00      
   RE: maximum amount of memory            01/01/70 00:00      
      RE: 23 not 15            01/01/70 00:00      
      RE: maximum amount of memory            01/01/70 00:00      
         RE: maximum amount of memory            01/01/70 00:00      
            RE: maximum amount of memory            01/01/70 00:00      
               RE: maximum amount of memory            01/01/70 00:00      
                  RE: maximum amount of memory            01/01/70 00:00      
                     RE: maximum amount of memory            01/01/70 00:00      
                     RE: maximum amount of memory            01/01/70 00:00      
                        RE: maximum amount of memory            01/01/70 00:00      
                           RE: maximum amount of memory            01/01/70 00:00      
                           RE: maximum amount of memory            01/01/70 00:00      
                              RE: maximum amount of memory            01/01/70 00:00      
                                 RE: maximum amount of memory            01/01/70 00:00      
                                    RE: maximum amount of memory            01/01/70 00:00      
                        The elusive universal board            01/01/70 00:00      
                           RE: The elusive universal board            01/01/70 00:00      
                              RE: The elusive universal board            01/01/70 00:00      
                                 RE: Typical, or Legacy?            01/01/70 00:00      
   RE: maximum amount of memory            01/01/70 00:00      
   RE: maximum amount of memory            01/01/70 00:00      

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