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  • RE: TM4C129XNCZAD: Max. IO voltage, confusing datasheet

    Resolved
    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…

  • RE: Power Monitoring IC Required

    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…

  • SN74LVC1G3157-Q1: Some questions about SN74LVC1G3157-Q1

    TI Thinks Resolved
    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…
    • Answered

  • RE: SN74CB3T1G125, Clock problem

    Resolved
    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…

  • RE: SN74CBT1G125 - input voltage range during power off

    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…
    • Answered

  • Fast LL 2:1 Mux (tpd < 0.5ns)

    Resolved
    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…
    • Resolved
    • Answered

  • Re: Partial power-down of 74LVC1G66 analog switch

    Resolved
    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

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