Come on now Onyshko Dmitry. Did you even try to find this type of information on your own. There are SO many examples on the internet at project web sites, manufacturers apps notes pages, and development tools vendors web sites that it is rather quite hard not to have that information coming down on you like just so much rain if you would be just to willing as to spend a few minutes with WWW.GOOGLE.COM. If you enter the search key SPI EEPROM 8051 you get as of today some 2180 hits.

Or were you expecting that we would press this button for you...


...and all your needs would be delivered directly to the vicinity of your face??

Michael Karas