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???
03/01/05 09:53
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#88753 - Read the datasheet
Responding to: ???'s previous message

I pulled out my "power ics databook" and had a quick browse of the datasheet. The read and write timing is interesting - the /rd to data hi-z time is upto 180nS - probably not good with an 8051. Also the write data hold time is 120nS - not something the 8051 will comply with. Probably the simplest method around this is to control the bus ports via software - complying with the timing should then not be a problem.

I think this explains your problem.

List of 16 messages in thread
TopicAuthorDate
software problems interfacing with LM628            01/01/70 00:00      
   Sure ?            01/01/70 00:00      
      addressed to Mr STEVE , LM628            01/01/70 00:00      
      Kind attn Mr. STEVE, LM628            01/01/70 00:00      
         sanity checks.            01/01/70 00:00      
            LM628            01/01/70 00:00      
               Far as I can go.            01/01/70 00:00      
                  Problem still not solved            01/01/70 00:00      
                     Clock generation            01/01/70 00:00      
                        Read the datasheet            01/01/70 00:00      
                           expanding            01/01/70 00:00      
                              expanding            01/01/70 00:00      
                                 To all of you guys, who tried helping me            01/01/70 00:00      
   I might have code for the LM629            01/01/70 00:00      
      posting code and staying cool            01/01/70 00:00      
   LM 629 codes-working...            01/01/70 00:00      

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