In my understanding, TXS0102 doesn't need the external pull up resistor. If the customer add the external resistor, they can get the larger drive capability, right? But the driver capability has a limit that is 10mA, so the external pullup resistor has a minimum limit. In below schematic, for A port, the current is 1.8/(3.3k//10k)=0.72mA; for B port, the current is 3.3/(3.3k//10k)=1.32mA. Both current are smaller than 10mA, so the pullup resistor is ok, right?
Thanks & Best Regards,