Aka sa da dosiahnut najnizsia spotreba mcu?

[Serych@panska.cz]

A co pouzit nektery z PICu z rady nanoWatt. Kopiruji z datasheetu 12F683:

Low-Power Features
• Standby Current:
- 1 nA @ 2.0V, typical
• Operating Current:
- 8.5µA @ 32 kHz, 2.0V, typical
- 100µA @ 1 MHz, 2.0V, typical
• Watchdog Timer Current:
- 1µA @ 2.0V, typical

Jakub Serych

> -----Original Message-----
> From: Jozo [mailto:svk421@zoznam.sk]
> Sent: Tuesday, May 17, 2005 10:31 AM
> To: HW-news
> Subject: Aka sa da dosiahnut najnizsia spotreba mcu?
> 
> 
> Zdravim,
> chcu po mne zariadenie napajane z vacsej "knoflikovej" 
> baterky. Pozeral 
> som sa na spotrebu procesorov ktore puzivam. Napr. PIC16F627A 
> by mal mat 
> vlastnu spotrebu cca 20 - 25uA pri napajani 3V a oscilatore 
> 32kHz. Ma to 
> byt casovac, takze krystal tam potrebujem. Ta spotreba sa mi zda dost 
> velka - na rok to vychadza 220mAh. Je moznost pouzit RTC 
> (spotreba 1 - 
> 2uA), nastavit alarm a dat procesor do sleepu (100nA).  Ale 
> zaujimalo by 
> ma, ako su na tom so spotrebou ine typy malych 8-bitov.
> 
> Takze otazka: poznate niekto procesor so spotrebou (vyrazne) 
> nizsou ako 
> 20uA pri tychto parametroch:
> - oscilator 32kHz
> - napajanie od 2V
> - pocet I/O 8 az 16
> - periferie ziadne, len nejake citace
> 
> Vdaka za odpovede.
> jk.
> 
> 
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