Other Parts Discussed in Thread: ISO3086T, TXS0108E, SN74LVC8T245,
Hi
We have interfaced our processor UART interface pins @ 3.3V with ISO3086T operating @ 5V using TXB0108E. We are facing an issue when the pins are driven from high to low.
We feel there is no enough drive strength of the TXB0108E. (20uA) .. We are thinking of using TXS0108E to solve the problem.
One more point is , we previously used NVT2008PW IC for the same. As we are using other TI ICs our procurement department asked us to use TI part hence we used TXB0108E.
Can you please let us know if using TXS0108E will solve the issue ? We have also placed pull-ups on our board on D, R and DE/RE lines so we can populate them for Open-Drain output. The speed of operation is less than 1Mhz.
We are stuck and we have to give proper explanation if we have to go back to NVT2008PW part :)
Ramgopal Kota