Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
03/31/08 14:24
Read: times


 
#152766 - I'd rather not
Responding to: ???'s previous message
Can you please suggest some ICs that I can wire to generate a one shot signal?
I'd rather not, any form or fashion of a one-shot is unreliable.

make something with a flip-flop that the wake-up set and the code reset when it is awake.

Erik


List of 42 messages in thread
TopicAuthorDate
Problem waking up from power down mode:AT89S52            01/01/70 00:00      
   Have you seen the pulse?            01/01/70 00:00      
      Saw tthat            01/01/70 00:00      
         I agree!            01/01/70 00:00      
      monoflop IC number?            01/01/70 00:00      
         also know as one shot (in the foot)            01/01/70 00:00      
            Supervisor chip?            01/01/70 00:00      
               try digikey            01/01/70 00:00      
                  Can you explain how that would help?            01/01/70 00:00      
         how about 4538?            01/01/70 00:00      
         You can, but also read this...            01/01/70 00:00      
      Maybe rather than a monoflop....            01/01/70 00:00      
         Ehem...            01/01/70 00:00      
            Ehem....Hmmm            01/01/70 00:00      
               Why messy?            01/01/70 00:00      
               Remember that the oscillator is turned off            01/01/70 00:00      
                  So using a one-shot seems the best idea..right?            01/01/70 00:00      
                     a one shot should always ...            01/01/70 00:00      
                        I tried using an RC circuit...but it did not work            01/01/70 00:00      
                           sorry, I was wrong            01/01/70 00:00      
                              If one shot is a close second...            01/01/70 00:00      
                                 I'd rather not            01/01/70 00:00      
                                    but problem with FF is that            01/01/70 00:00      
                                       ah, Arghmel            01/01/70 00:00      
                           Not same part            01/01/70 00:00      
                     If You Use PCF8563 RTC...            01/01/70 00:00      
                        555 vs '121? Which is better?            01/01/70 00:00      
                           121 ..            01/01/70 00:00      
                              I used a 74LS121 and...            01/01/70 00:00      
                                 yes it will, but            01/01/70 00:00      
                                    HC and HCT?            01/01/70 00:00      
                                       there is this fancy newfangled thing ....            01/01/70 00:00      
                                    There is no 74HC121, but HC123 and HC221            01/01/70 00:00      
                                 Should really consider....            01/01/70 00:00      
                                    I really would consider PCF8563 but...            01/01/70 00:00      
                           Digital pulse is still better            01/01/70 00:00      
                     I would try this            01/01/70 00:00      
                        elegant, but why ....            01/01/70 00:00      
                           You can, of course, but...            01/01/70 00:00      
                              reg power consumtption...            01/01/70 00:00      
                                 Have you seen my circuit?            01/01/70 00:00      
                                    Pulse Mode from RTC,,,,            01/01/70 00:00      

Back to Subject List