The DS1302 are DS1307 most common, reasonably low cost. Adafruit has breakout boards and drivers for the DS1307, so you could use that as a reference design. Both are I2C bus devices, independently powered from the bus. Run for years from a little watch battery.
Old Dallas Semiconductor parts, now supplied by Maxim Integrated. --- Graham == On Thursday, December 10, 2015 at 12:39:49 AM UTC-6, c2h2 wrote: > > Hi all, > > onboard RTC draws too much current, > > > need to have low current RTC chip, no need to be super accurate, low cost > is the prime concern. has suggestions? > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
