PIC problem

i want to know about which IC is sufficient for the RTC inPIC 18f4685 and RTC communication via SPI give me detail of RTC used in SPI mode
I am using 18f4685 and 16f877a and RTC both communication in SPI only I want RTC Ic please refer me

Hi,

You may try Dallas DS1305. The following link is an application note on interfacing it. **broken link removed**

Hope that helps. Merry Christmas!