Thanks, but not exactly what I needed. I would like to combine the timer with a 8 KB RAM. However... I agree with you that this looks nice. I might rec—nsider the design. Kindest regards Sven -----Ursprungligt meddelande----- FrŚn: John Duncan Till: PICLIST@MITVMA.MIT.EDU Datum: den 17 maj 1999 04:57 €mne: Re: SV: (OT) Timekeeper (R) RAM alternative ? >I >>I use the Timekeeper (R) RAM in a PIC project (so this is just a little >off topic - OK ?) The advantage is a classic, useful scratchpad, with a 10 >year clock on top (year month ....) both are very valuable for this >project. The disadvantage is, that the 32 K memory needs 15 addresslines, >and thus a hairy PCB. Either I need to use latches or drivers (or use up >the I/O ports of the PIC) to address this special RAM. >> >>Now - have anyone of you seen a serially (SPI ??) addressable RAM / timer >combination out there ? >> >>Best Regards >> >>Sven >> >> > >I am developing a project using the Dallas Semiconductor DS1307 RTC. 56 >bytes of battery backed RAM and I2C bus. > >Cheers >JD >