Someone Electro said:
Can it then transfer 1Mbit/s if its run at 1Mhz?
:shock:
thats about 100 KB/s and thats fast enugh for digital audio transfer.
Is it realy that fast?
I suspect there are a number of conflicting and confusing thoughts in this thread!.
Firstly, I get the impression that the original question was asking about adding PROGRAM MEMORY to a PIC? - you can't do this for almost all PIC's, and I2C EEPROM wouldn't be suitable anyway. I2C EEPROM would only add another form of slow EEPROM data memory.
Secondly, I2C is a relatively slow system, designed for a very specific purpose (connecting IC's together on large PCB's, using just two wires on a common bus). As such, it's fairly slow and complicated (it was never designed to be fast!) - but as it's a syncronous system the speed of it is totally dependent on the speed of the master clock thats feeding the slaves - AS LONG AS THE SLAVE CAN KEEP UP!.
I2C EEPROM's are slow devices, you can read them a LOT faster than you can write them - and there are various projects available that can playback audio from an EEPROM using a PIC - but they use various clever methods to overcome the limitations. But you can't record the audio data in real time, the EEPROM is far too slow.