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TCA9546A: Regarding pullup voltage on the output I2C channels

Part Number: TCA9546A

Tool/software:

Hi 

we are using TCA9546APWR in our schematics design and following is our implementation(image 1). In this one o/p I2C channel,we have connected a level shifter and translating it to 3.3V signals(refer image 2). Can we avoid this level shifter and instead change the pull up resistor voltage to 3.3V instead of 1.8V? Will it work. The TCA9546 operates at 1.8v supply in our design.