I just remembered a quite universal problem solver: SN74CBTLV1G125
This bus switch (Ron <=15Ohms) can e.g. isolate the processor pins from external signals when being disabled or un-powered with an Ioff specification of 10µA. I just checked it in the…
Hi Hari,
The system calculations and your explanation are clear. I agree with how the numbers are derived and they provide a dynamic understanding of the parameters you are designing. Thank you for the documents.
Regarding the switching sensing system…
Part Number: SN74LVC1G3157-Q1 Other Parts Discussed in Thread: SN74LVC1G3157 , SN74CBTLV1G125-Q1 Dear Sir
My project will use TI SN74LVC1G3157-Q1. It maybe run 1KK PCS/Y.
But there are some questions which i can not found in the datasheet.
1,It is a unilateral…
It would appear that our digital bus switch selection guide isn't correct. The CB3T family will not perfectly follow a 3.3V input with a 3.3V Vcc. A pin-to-pin replacement that supports rail-to-rail throughput is the SN74CBTLV1G125.
You can see here…
y.i , CBT devices doesn't have Ioff protection feature in them to have isolation during power off. The CBTLV /CB3Q family of devices have Ioff protection circuitry and they can tolerate inputs on their input ports when Vcc is 0V.
Could you consider…
Other Parts Discussed in Thread: SN74CBTLV1G125 Hi all,
We need to mux incoming two fast signal with tiny components. ___2G157 part seems to be ok but they have max. 4ns propagation delay.
So I wonder if can two SN74CBTLV1G125 be used as figure below. This…
Hi Bob
Unfortunately this device will not allow you to go above Vcc.
You might take a look at this part. It has the Ioff feature that would allow this. http://focus.ti.com/lit/ds/symlink/sn74cbtlv1g125.pdf