I have a situation where I need to have an I2C master drive multiple I2C slaves over distances of 1 foot to 50 feet. Specifically I want to use CAT-6 shielded cable to run the following:
- Power: 12v, GND
- I2C: SDA, SCL
- SPI: MOSI, MISO, CLK, CS
I'm currently looking at the P82B715 for the I2C bus, but I don't have a solution for the SPI bus.
Also, on the I2C bus, the Master operates at 3.3v while the Slaves operate at 5v.
Questions:
- Is there a single chip (or two chip) solution to support the data lines at this distance range?
- If we use the P82B715 can the Master and Slave operate at different voltages by just having Vcc-master at 3.3v and Vcc-slave at 5v?
Thanks for the help!
Mark
