Recommended Usage of Microchip Serial RTCC Devices
If your design contains Microchip’s MCP79XXX series RTC chips and you are running into troubles using them, this technical brief is intended to resolve several of the commonly-asked questions regarding developing stand-alone serial interface real-time clock/ calendar devices with MCP79XXX. Similarly,
there’s also another application note from Microchip which provides detail assistance and guidance in using these RTC devices.
For more detail: Recommended Usage of Microchip Serial RTCC Devices