Hmm, just been reading through the last few posts. Gmx, thank your for the link to the TI Voltage Translation document and agg001 for the long explanatory post.
The idea of a row of transistors for "the outputs you care about" is probably not going to be practical, but I don't know yet. The outputs that the interface cares about is all of the 16 signal wires. Data can be outgoing or incoming, Control and handshake signals vary in direction depending on the mode that the interface is operating in, i.e. whether it is reading or writing data, or whether it is in controller or device mode. If an 74LVC245 on its own is not going to provide a solution, then I do need to be looking at the 74CB3T16210 or pair of pair of 74CB3T3384. I can only find these in SMD packages so I am going to have to figure out how to make them breadboard friendly for prototyping. Its a shame that it doesn't look like I will be able to get away with just the SN7516x buffers.
Anyway, I appreciate the feedback. I tried adding 100ohm series resistors to the TXS0108E, but it didn't help much.
The idea of a row of transistors for "the outputs you care about" is probably not going to be practical, but I don't know yet. The outputs that the interface cares about is all of the 16 signal wires. Data can be outgoing or incoming, Control and handshake signals vary in direction depending on the mode that the interface is operating in, i.e. whether it is reading or writing data, or whether it is in controller or device mode. If an 74LVC245 on its own is not going to provide a solution, then I do need to be looking at the 74CB3T16210 or pair of pair of 74CB3T3384. I can only find these in SMD packages so I am going to have to figure out how to make them breadboard friendly for prototyping. Its a shame that it doesn't look like I will be able to get away with just the SN7516x buffers.
Anyway, I appreciate the feedback. I tried adding 100ohm series resistors to the TXS0108E, but it didn't help much.
Statistics: Posted by FruityNutPi — Tue Oct 29, 2024 1:37 pm