Hello
For my design to use THVD1424 for half duplex (with H/F pin tie to High) application, shall the MCU I/O connect just to THVD1424 pin Y and Z (there is already internal connection within the IC to both transmit and receive buffer as shown in the figure 9.6 of datasheet)? and leave pin A and B floating since these two pins are not in use in half duplex application? and also leave the pin TERM_RX floating or tie to GND?
Hi Edward,
Clemens is correct:
H/F pin can be controlled as seen below
A/B pins can be left floating since they will be connected internally through the Y/Z pins in half duplex mode.
TERM_RX is a don't care when H/F is High and TERM_TX has higher priority:
So you should be able to leave TERM_RX floating (it has an internal pull-down) as it is a don't care during half duplex mode.
Please let me know if you have any more questions!
Best,
Parker Dodson
