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???
10/05/10 11:38
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 		 #178918 - Powered components
Responding to: ???'s previous message
Active as in active components - not passive.

In this case buffer chips with one voltage level on one side and another voltage level on the other side. Maybe 5V inputs and 3.3V outputs or reverse. But there are huge number of level converters available.

List of 45 messages in thread
TopicAuthorDate
JHD162A lcd            01/01/70 00:00      
   5V LCD            01/01/70 00:00      
      in addition !            01/01/70 00:00      
         Matching output voltages with input requirements            01/01/70 00:00      
         C8051F120 has 5V tolerant Input/Output pins            01/01/70 00:00      
            Yes i have...            01/01/70 00:00      
            careful            01/01/70 00:00      
               what are...            01/01/70 00:00      
                  Powered components            01/01/70 00:00      
                     Thank You            01/01/70 00:00      
                  examples            01/01/70 00:00      
               active level converters            01/01/70 00:00      
                  Resistors not good way to reduce voltage            01/01/70 00:00      
                     Thank You...            01/01/70 00:00      
                     Per forgot one thing            01/01/70 00:00      
                        R*C            01/01/70 00:00      
                           delay            01/01/70 00:00      
            5V and micro and LCD            01/01/70 00:00      
   potentiometer            01/01/70 00:00      
      Film Capacitor??            01/01/70 00:00      
         thank you so much            01/01/70 00:00      
      SIL resistor            01/01/70 00:00      
         new delhi            01/01/70 00:00      
            Actually, it seems that they *do* know!            01/01/70 00:00      
         SIL Residtor *network*            01/01/70 00:00      
            correction...Yes they do know            01/01/70 00:00      
   Port I/O pin voltage            01/01/70 00:00      
      "5V-Tolerant" pins - already answered            01/01/70 00:00      
      5V tolerant, not 5V            01/01/70 00:00      
         Thank You            01/01/70 00:00      
            Maybe you can "get by" with this ...            01/01/70 00:00      
               "Absolute Maximum Limits" are not Operating conditions            01/01/70 00:00      
                  That's true, it's an absolute maximum/minimum            01/01/70 00:00      
                     Agree            01/01/70 00:00      
               3V3 logic runs at "TTL levels"            01/01/70 00:00      
                  The HD44780 claims to respond to TTL levels ... but ...            01/01/70 00:00      
   pull up resistor            01/01/70 00:00      
      do not tie a pin to gnd            01/01/70 00:00      
      many pull-ups            01/01/70 00:00      
         Do you mean...?            01/01/70 00:00      
      one more thing ...            01/01/70 00:00      
   high impedence            01/01/70 00:00      
   lcd EN signal            01/01/70 00:00      
      It is a pre-clear            01/01/70 00:00      
         Thank You            01/01/70 00:00      

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