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???
02/25/05 04:53
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 		 #88420 - power nomenclature
Responding to: ???'s previous message
Erik Malund said:
A little trick schematicwise for mixed voltage lables. My Vcc is 5V, my Vdd is 3.3 it works well for me


I'm easily confused by Vcc, Vdd, Vdds, Vss and the lot, so I've taken to callin' 'em as I sees 'em:

Vcc5 = 5 V
Vcc3p3 = 3.3 V
Vcc2p5 = 2.5 V
Vcc5A = 5 V for analog
Vcc15A = 15 V for analog
Vee15A = -15 V for analog
GndA = analog ground
GndC = chassis ground
GndD = digital ground
GndP = PLL ground

etc.

and I have parts such as HC7400D and HC7400C with the + terminal conneted respectively defined in ORCAD.


That I like ...

-a

List of 37 messages in thread
TopicAuthorDate
P89LPC922 vs AT89C2051            01/01/70 00:00      
   Sheer price            01/01/70 00:00      
      LPC price            01/01/70 00:00      
   no chance at 5V !            01/01/70 00:00      
      But requirement is for 51 series MCU            01/01/70 00:00      
         whats your problem ?            01/01/70 00:00      
            3.3 and 5            01/01/70 00:00      
            why?            01/01/70 00:00      
               money, money...            01/01/70 00:00      
                  not agree            01/01/70 00:00      
                     your choice(s)            01/01/70 00:00      
                  a concern and a yes            01/01/70 00:00      
                     5 V tolerant I/O LPC900 family            01/01/70 00:00      
                        2051 pin compatibility            01/01/70 00:00      
                           compatibility            01/01/70 00:00      
                           2051 compatibility            01/01/70 00:00      
                              pity...            01/01/70 00:00      
                                 nbot a pity            01/01/70 00:00      
                                    more details            01/01/70 00:00      
                                       Pin compatibility            01/01/70 00:00      
                                          it's nice            01/01/70 00:00      
                                             2nd source and pin kompatibility            01/01/70 00:00      
                                                second source always            01/01/70 00:00      
         51 Architecture            01/01/70 00:00      
            just a zener - naah            01/01/70 00:00      
               power nomenclature            01/01/70 00:00      
      MCU51 side            01/01/70 00:00      
         These are the options            01/01/70 00:00      
            doubt            01/01/70 00:00      
               Mr. Peter - Its not my problem            01/01/70 00:00      
   We us both 2051's and LPC's            01/01/70 00:00      
   good news            01/01/70 00:00      
      What a misery!            01/01/70 00:00      
         Atmel innovating ?            01/01/70 00:00      
            2nd source and pin kompatibility revisit            01/01/70 00:00      
               what's the fuzz            01/01/70 00:00      
                  Word is not only new products            01/01/70 00:00      

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