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11 years ago.
Sony cxa1114p I2C Bus voltage
Hi,
I've bought a cxa1114p i2c Audio/Video Switch IC. Supply voltage 8-10 Volt. But in the datasheet I couldn't see if it's working with 3,3v i2c Bus . Could Anyone help me? Does the mbed lpc1736 work with the Chip and either? Or do i have to use levelshifting? How could i connect them?
Thx Thomas
1 Answer
11 years ago.
According to the datasheet the threshold level for logic inputs is set at roughly 2.2V, and everything from 3V and higher is certainly detected as a high input. So it should work with 3.3V I2C bus, and if you want to be certain you can also just use the I2C bus at 5V (the LPC1768 is 5V tolerant).
Accepted Answer