AVR-Chat

Can anyone point me to info on the T26 at low voltage?

Specifically, if I turn off the BOD, and rely on the watchdog, at what 
voltage does the WDT start/stop working?

Also, does anyone know typical (rather than guaranteed) numbers for 
where the T26 actually stops working, using the internal RC osc at 4 
MHz?

Odds are, there will not be a definitive "stops working"
voltage. For example, you may start to have errors on
EEPROM writes. Or, the clock may start to get
off-frequency. The Atemel micros, especially, have been
noted as working well at lower voltage at room temperature,
but start to have problems approaching the temperature
limits. As a result, you may not see the improper operation
until some combination of conditions causes it to
malfunction. 

Whether or not this is OK depens on the application. If its
hobby, go ahead. If its a commercial product, don't do it.
A couple of the newest AVRs work down to 1.8V (Mega48
family)

Jim

On Tue, 10 Jan 2006 10:43:30 -0800 (PST)
 kholt@sonic.net wrote:
> 
> I use the Tiny26 in a battery-powered wand toy, and I've
> seen
> them working under 2 volts.  I don't remember what the
> spec says,
> maybe 2 volts is not so low.
> 
> 
> >
> > Can anyone point me to info on the T26 at low voltage?
> >
> > Specifically, if I turn off the BOD, and rely on the
> watchdog, at what
> > voltage does the WDT start/stop working?
> >
> > Also, does anyone know typical (rather than guaranteed)
> numbers for
> > where the T26 actually stops working, using the
> internal RC osc at 4
> > MHz?
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 

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I use the Tiny26 in a battery-powered wand toy, and I've seen
them working under 2 volts.  I don't remember what the spec says,
maybe 2 volts is not so low.

>
> Can anyone point me to info on the T26 at low voltage?
>
> Specifically, if I turn off the BOD, and rely on the watchdog, at what
> voltage does the WDT start/stop working?
>
> Also, does anyone know typical (rather than guaranteed) numbers for
> where the T26 actually stops working, using the internal RC osc at 4
> MHz?
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>