suppose i have 4MB of memory how divide data lines and address lines
Question regarding I2C Protocol &EEPROM: 1)how many device we are able connect in 7 bit address...119,112 or 128??why this restriction? 2)suppose I was connected five EEPROMs in a single master bus ..how can it enable those eeeprom's as a externally A2 A1 A0 pins or internal register A2 A1 A0 other wise both?? 3)in multi master I had 5 volts(it is fix I never decrease ) for one micro controller , 2nd micro controller is 4 volts and rest of the devices(slaves ) are 3 volts .how It can able to communicate together?? plz solve my question...