Hello everyone,

        I have a project where I have to take GREAT care of battery life.
        It=B4s a portable system with a 16F627, that has to make some measuremen=
ts
every
         300 seconds, and stay on for 20 seconds.
        Once the system is turned on, it will NEVER be turned off.
        So, system=B4s life depends on batteries life. When batteries die, the w=
hole
system is disposed.
        For the batteries I have to use, putting the 16F627 in sleep mode wouldn=
=B4t
be a solution, cause I
          would be far away from where I should (in terms of battery life).

        Now, the question:

        I thought of using a DS1337 RTC, wich has an alarm output that could be
configured to
         power the PIC every 60 seconds.
        I=B4ve also thought of use a 4060 counter, and others in cascade, but...=
....

        Would there be a better solution (cheaper, easier) for powering the 16F6=
27
?


        Thanks in advance,

                        Gabriel.-

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