Hi,
Good Day.
Customer is using a bidirectional voltage level translation between 3.3 V 
5 V. 2 pins for UART and 2 pins for I2C. Does he need a pullup resistors for UART?
About I2C according to datasheet: The pull-up resistor value needs to limit the current through the pass transistor when it is in the ON state to about 15 mA. This ensures a pass voltage of 260 mV to 350 mV. In the datasheet the max value for 5V is 1705. He need to use 10k for his I2C. Will it work?
Please advise. Thank you very much.
Best Regards,
Ray Vincent
