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???
02/26/04 12:12
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#65510 - RE: External ram and Rom for 8051
Responding to: ???'s previous message
Yes. You need a latch like a 573, you use the PSEN line to access the ROM and the RD and WR lines to address the RAM.

This may help
http://www.8052.com/users/ste...vative.pdf
Steve

List of 19 messages in thread
TopicAuthorDate
External ram and Rom for 8051            01/01/70 00:00      
   RE: External ram and Rom for 8051            01/01/70 00:00      
      RE: External ram and Rom for 8051            01/01/70 00:00      
   RE: External ram and Rom for 8051            01/01/70 00:00      
   RE: bible study time            01/01/70 00:00      
   RE: External ram and Rom for 8051            01/01/70 00:00      
      RE: External ram and Rom for 8051            01/01/70 00:00      
         RE: External ram and Rom for 8051            01/01/70 00:00      
            RE: External ram and Rom for 8051            01/01/70 00:00      
               RE: External ram and Rom for 8051            01/01/70 00:00      
                  RE: External ram and Rom for 8051            01/01/70 00:00      
                     RE: External ram and Rom for 8051            01/01/70 00:00      
                  RE: External ram and Rom for 8051            01/01/70 00:00      
      RE: External ram and Rom for 8051            01/01/70 00:00      
         RE: External ram and Rom for 8051            01/01/70 00:00      
            RE: QC Reviewed Schematic            01/01/70 00:00      
      RE: External ram and Rom for 8051            01/01/70 00:00      
         RE: External ram and Rom for 8051            01/01/70 00:00      
            RE: External ram and Rom for 8051            01/01/70 00:00      

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