Hi,

I am wondering hom much power the philips 80c552 uses will the reset pin is high.

I am designing a 80c552 based system and want it to retain RAM during powerfails. AFAIK the RAM is retained during reset, is this correct ? I would like to power the device down, but then I need to have the EPROM powered as wel.

Any other ideas ?
P.S. the idea is to keep the controller powered by a back-up battery.

Thanks in advance,

Marc