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TCA9548A-Q1: Designing with TCA9548A

Part Number: TCA9548A-Q1
Other Parts Discussed in Thread: TCA9548A

Hello Team,

We are planning to use the IC TCA9548A in one of our products.
Can you please clarify the doubts we are having?.

1). The I2C master MCU will be working in 3.3V logic, and the I2C slaves connected at the downstream side will be working in 5V logic. Is there any problem in doing this?.
In this case, what should be the voltage at VCC pin. 3.3V or 5V?.

2). Will there be any problem if the TCA9548 device slave address and the I2C slave address on one of the channels are same?.

3). If channel 1 is enabled and the transcation is completed, how to switch to channel 2.

 

Looking for your response