Sathish,
The SN74CBTXXXX devices are single NFET switches and the on-state resistance of the signal path will be increasingly high as the voltage on the signal path approaches Vcc.
If you operate the device with Vcc = 5V and place 5V on the input…
Part Number: TMUX1575 Other Parts Discussed in Thread: SN74CBT3245A , SN74CBT3245C , SN74CBT3861 , SN74CBTLV3861 , SN74CBT3257C , TMUX1574 , , SN74LV4066A , TMUX1511 , TS5A23157 , TMUX1072
System isolation is critical for power sequencing, managing bus contentions…
Nick,
Thank you for the additional diagram that helps clear up your need a little more. We do not specifically guarantee the Vt voltage variation tolerance of the FET switch so I have a solution for you below how to calibrate out the Vt variation or we…
We are using SN74CBT3245APWR as isolation buffer in our design. Our board is already manufactured and shipped to end user. We have realised now that the recommended power supply for this device is between 4 to 5V. But in our design we were giving 3.3V…
Part Number: SN74CBT3244 Other Parts Discussed in Thread: SN74CBT3245A Can SN74CBT3244 be used as a de-multiplexer? This is not explicitly stated in the Datasheet, but comparing against SN74CBT3245A (which does say it is bidirectional) they seem to be…
SPRAAU2 was written in 2008, when the fastest level shifters were in the LVC family. The AVC family has much better output drivers, and the AXC device is even newer. I guess the SN74AXC8T245-Q1 would work just fine.
The SN74CBT3245A has the same power…
We have a lot of different kinds of switches. some can be used for translation some cannot.
The appnotes you refer to show a N channel FET type switch that will have the inherent 1V VT drop.
There are other switches where we modified the parts to where…