bcm2835 pinout diagram and recommended PCB footprint files for schematic design

can any body give me bcm2835 pin configuration and pcb footprint please

You're gonna have a hard time getting that information. Even if you do, you'll have more trouble trying to purchase the chip in smaller quantities than 100,000. Broadcom (the manufacturers of the BCM2835) require larger quantities, signed NDA's. etc in order to work with you on this. The Raspberry Pi that uses the BCM2835 is not really open source, the chip itself is very closed off. The Raspberry Pi wasn't really developed to be cloned onto other devices. It's a common grievance people have with the platform.
The Beaglebone's (similar to RPi) use Texas Instruments ARM Processors, which are available to purchase and you should be able to obtain the footprints for these as well. They often behave similar to the RPi in many ways. You may have more luck with another ARM processor like these ones. 

The pin configuration and footprint of a part is usually in the datasheet for that part. If not, it is usually available in another related document from the manufacturer. Unfortunately, as Mike pointed out, Broadcom requires NDAs  before they even let you see a datasheet.In addition to the Texas Instruments ARM processors mentioned by Mike, NXP makes ARM processors with similar capabilities.Information on all these parts is available through the manufacturer's web sites.

There's some useful information at the Raspberry Pi community wiki. 
One item there is a non-official pinout.You can also check out the BCM2835 info at raspberrypi.org, but I don't see a pinout.According to Norcott Technologies Ltd, the "BCM2835 is
a 18x18x0.65mm pitch BGA package  with pads for a 0.5mm pitch 256M Byte SDRAM on top".Hope this helps!