Both the MOSI and /CS signals are unidirectional. For this application, you should use the TXU0102-Q1.
Are there any other signals that you are translating? Are you using SPI or QSPI?
The TXS has edge accelerators that trigger when it detects what looks like the beginning of a rising edge. This can be sensitive to noise.
For translating I²C, I would use the LSF0102, and for the SPI signals, the TXU0102.
Hi Steve,
You may also see the AUP family ( SN74AUP1T34) allowing up to 200ns/V, SN74AXC1T45 up to 100ns/V and the TXU / LXC families (TXU0102 / SN74LXC2T45) with Schmitt-trigger inputs / no slew rate requirements, thanks.
Best Regards,
Michael.
To convert unidirectional signals from 3.3 V to 5 V, you could also use a buffer with TTL-compatible inputs, e.g., SN74AHCT244. (This optimizes for price, not for BOM simplicity.)
If you have unidirectional signals in different directions, the best choice…
Part Number: SN74LVC2G17 Other Parts Discussed in Thread: TXU0102 , LSF0102 Dear Team,
Could you help to double check the schematic as below?
Many Thanks,
Jimmy
Open-drain outputs have slow rising edges, depending on the value of the pull-up resistors.
Use an actual level shifter like the TXU0102, or a buffer with overvoltage-tolerant inputs like the SN74LVC2G34.
The typical skew is less than 1 ns. There is no…
At 5 V, V T+ is 3.4 V. So 3.3 V signals are not guaranteed to work.
For up-conversion, you need a buffer with lowered input thresholds like the SN74LV1T34, or an actual level shifter like the TXU0102.
