Hi Brent, thanks for helping me out with those
resonators before. :o)

What is your main problem? Disabling the wdt is
probably making the PIC do more instructions per
second which will use more power...

Can you run a slower PIC speed?
Can you change to a 16F84A which uses less power
than your 16C84, and uses less running current and
less quiescent current?

Email me off-list if you like.
-Roman





Brent Brown wrote:
>
> Hi,
>
> I've just completed the hardware for a 9V battery powered gizmo.
> I'm using a LT1121-CZ5.0 regulator and no load it draws 30uA just
> like the data sheet says. My 16C84 is running with a 32.768kHz
> crystal and 82pF caps and the whole circuit draws about 130uA. I
> intend to use 16F84's but so far have been using an old 16C84 I had
> kicking around.
>
> This curent was a little higher than I had hoped. And then if I disable
> the watchdog the current goes UP to 270uA! Doesn't this sound a
> bit backwards?! Checked and rechecked. Anyone got any ideas?
>
> Brent Brown
> Electronic Design Solutions
> 16 English Street
> Hamilton, New Zealand
> Ph/fax: +64 7 849 0069
> Mobile/text: 025 334 069
> eMail:  brent.brown@clear.net.nz
>
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