Russel,

> Anybody got some practical real-life current drain figures of PIC
> designs at 32KHz?

Scratching my memory to remember exact figures but I used a
PIC16C63 with OSC1=4MHz resonator & OSC2=32.768kHz
crystal.  Sleep (32kHz osc continues) for 2 seconds then wake up
briefly to increment software real time clock, check alarms and go
back to sleep.

WDT, POR etc on but brownout detect definitely off, about 25-30uA
average.  Or I think about 15uA with the WDT off.  I used a Seiko
low power & LDO voltage regulator and reset generator which
accounted for only a few microamps.

The biggest current draw was self discharge of the nicads!

Brent

Brent Brown
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HI-TECH Software Sales
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