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???
04/19/05 07:25
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#91898 - datasheets???
Responding to: ???'s previous message
What is the use of a datasheet where the user has to guess what the manufacturer meant???

Atmel, for example, states the tuning range of the internal RC oscillator of AVRs (although with a quite wide tolerance) and there are also appnotes with additional information on the same. This is not to say ATMEL datasheets are perfect - far from being so.

Changing process implies a new datasheet or at least an errata. I would not consider it a serious approach changing things and disguising it from the user. I think, the customer appreciates the information much more than lack of it; even if the information says "we have a flaw". Nevertheless, I know a lot of companies with the "say nothing, deny everything" policy.

Just an another example from the already mentioned documents (not RC-oscillator-related, just an illustration):
P89LPC932A1_1.pdf on page 37 said:
Up to 3 Mbit/s can be supported in Master mode or up to 2 Mbit/s in Slave mode.
UM10109_1.pdf on page 81 said:
Up to 3 Mbit/s can be supported in either Master or Slave mode.

And I did NOT search deliberately for discrepancies, just came across it incidentally. How many more similar are there?

Jan Waclawek

List of 10 messages in thread
TopicAuthorDate
P89LPC932A1 internal RC osc. TRIM            01/01/70 00:00      
   TRIM            01/01/70 00:00      
      TRIM range 6.5MHz to 12MHz            01/01/70 00:00      
         completely confused now...            01/01/70 00:00      
         warning            01/01/70 00:00      
            more confusion            01/01/70 00:00      
               who Knows            01/01/70 00:00      
                  Consider This...            01/01/70 00:00      
                     datasheets???            01/01/70 00:00      
                        That is not correct            01/01/70 00:00      

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