So, should probably just connect the OE pin to a logic-high voltage.
It is, already, "in hardware", see previous reply and link.
TXS? TXB?The Level Converter can be found in two flavors: the TXS line, and the TXB line. The TXS line is optimized to work on open-drain outputs as I2C or 1 wire, where the lines are bidirectional, and their direction changes from one way to the other (input <-> output), and where there is a shared bus. The TXB line is optimized to work with push-pull outputs lines, as SPI or mono directional lines.
and want to use it with the HC-SR4
The TXS line is optimized to work on open-drain outputs as I2C or 1 wire, where the lines are bidirectional, and their direction changes from one way to the other (input <-> output)
"OE" is pulled up to 'VCCA' already.http://www.artekit.eu/resources/ak-txs0108-v2/doc/AK-TXS0108_V2.0-1.pdf
Problem solved !! Thanks you guys so much !!!
@ raschemmel yeah i think it's could be the problem with the wrong version too, i will order another version and give i try. Thanks !
I think the OP's board is not the same on the schematics you linked.If the board the OP is using is this I can only see two decoupling caps. So the OP should be connecting OE to VA.
I don't understand the failure mode. How does having a 3.3v "clamp" stop damaging amps from flowing from the 5V side? Those amps aren't going into the 3.3V rail because then it would simply fail to be a level converter - it could not have worked in the first place.
Most logic level converters require a 3.3v voltage source input when going from 5v to 3.3v
We could take a look at the particular logic level converter you are talking about if you post a picture of the schematic. I suppose some could be different.The ones that rely on a clamp diode to +3.3v would be the ones affected.
Hello....... do you mean 'going from 3.3V to 5V'?