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???
05/19/11 07:01
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 		 #182286 - problem rgarding uln and udn
Responding to: Andy Neil's previous message
here is the link of datasheet i have read
http://www.allegromicro.com/en/Produc...1/2981.pdf., sir another problem , i have a question, the inputs to the uln and udn should be controlled by software or not because i am doing a relay 8*8 matrix, please reply,thanks

List of 49 messages in thread
TopicAuthorDate
problem rgarding uln and udn      Santosh Kumar Jena      05/18/11 12:35      
   They are different in every sense!      Kai Klaas      05/18/11 13:55      
      problem rgarding uln and udn      Santosh Kumar Jena      05/18/11 22:32      
         You forgot your links        Per Westermark      05/18/11 22:57      
         Basic electronics      Ashok Kumar      05/18/11 23:54      
            Clarification - more Basic Electronics      Andy Neil      05/19/11 00:21      
            probelems regarding udn 2892      Santosh Kumar Jena      06/30/11 22:59      
               Still Basic electronics      Andy Neil      07/01/11 00:02      
                  Links      Per Westermark      07/01/11 00:15      
                     That'll be why he's still struggling after all these weeks!      Andy Neil      07/01/11 02:57      
               open emitter        Kai Klaas      07/01/11 03:40      
                  Open collector      Andy Neil      07/01/11 04:54      
         RE: i am not getting you      Andy Neil      05/19/11 00:44      
   Did you really read datasheets?      Andy Neil      05/18/11 15:24      
      problem rgarding uln and udn      Santosh Kumar Jena      05/19/11 07:01      
         relay matrix???      Erik Malund      05/19/11 07:10      
         This doesn't make sense!      Andy Neil      05/19/11 07:12      
            8x8 relay matrix?      Per Westermark      05/19/11 07:49      
               relay matrix?      Andy Neil      05/19/11 09:35      
                  not quite      Erik Malund      05/19/11 10:07      
                  one interesting thing I learned      Erik Malund      07/06/11 13:09      
               Unless...      Kai Klaas      05/19/11 10:00      
                  problem rgarding uln and udn      Santosh Kumar Jena      05/19/11 10:58      
                     lightning fast relays      Erik Malund      05/19/11 11:01      
                        problems regarding uln and udn      Santosh Kumar Jena      05/19/11 11:35      
                           both      Erik Malund      05/19/11 12:12      
                           None of this makes sense!      Andy Neil      05/19/11 12:53      
                           It appears you need latching relays      Richard Erlacher      05/20/11 06:49      
                              Latching relay is still slow      Per Westermark      05/20/11 07:46      
                                 You're right, but the relay spec's should reveal that      Richard Erlacher      05/21/11 08:26      
                              well, if he does ...        Erik Malund      05/20/11 08:28      
                                 use toggle types ... they were around once ...      Richard Erlacher      05/21/11 08:38      
                                    SPI + latched shift registers are good choices      Per Westermark      05/21/11 09:38      
                                       The protocol is good ... but not necesary here      Richard Erlacher      07/04/11 10:21      
                                          SPI is excellent for driving long shift registers      Per Westermark      07/04/11 14:38      
                                             tell us, Per, what data types does SPI support?      Richard Erlacher      07/04/11 20:39      
                                                Making Mountain Out Of Mole Hill        Michael Karas      07/05/11 00:40      
                                                   protocol and/or command structure      Andy Neil      07/05/11 00:51      
                                                No, SPI does *not* have both commands and data!      Andy Neil      07/05/11 00:43      
                                                   Where you sit determines what you see      Richard Erlacher      07/05/11 22:34      
                                                      Totally missing the point      Andy Neil      07/06/11 00:12      
                                                         The major advantage        Erik Malund      07/06/11 13:03      
                                                      Where Richard Sits......      Michael Karas      07/06/11 00:31      
                                                         From where I sit...        Andy Neil      07/06/11 00:51      
                                                      Always important to follow up the progress of technology        Per Westermark      07/06/11 01:35      
                     Language barrier?        Kai Klaas      05/19/11 17:27      
                        Further question      Andy Neil      05/19/11 23:51      
                     Sorry, double posting...      Kai Klaas      05/19/11 17:28      
   Cross-Post?      Andy Neil      06/06/11 00:29      

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