Hello Mr. Anand Francis Borgio,

It really is as simple as Mr. Andy Neil say. In case you are total lost the addresses of the sites he refers to are

1. http://www.maxim-ic.com/ enter DS1307 into the search window and press return on your keyboard.

2. http://dbserv.maxim-ic.com/appnotes....number=492 is the application which gives you the software to interface a 8051 to a DS1307 real time clock chip.

Good luck,

Charles Bannister