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Showing 9 results View by: Thread Post Sort by
    Answered
  • SN74LVCR2245A: Frequency range of input signal

    Yuxi Liu(Tony)
    Yuxi Liu(Tony)
    Resolved
    Part Number: SN74LVCR2245A Other Parts Discussed in Thread: SN74LVC374A Hi TIer What about the maximum input frequency of SN74LVCR2245A. Do we have some limited , I do not find it on Datasheet. And I found the maximum rise speed is 10us/V . and…
    • Resolved
    • over 2 years ago
    • Logic
    • Logic forum
  • SN74LVCR2245A: ioff isoaltion

    Jason Shen
    Jason Shen
    TI Thinks Resolved
    Part Number: SN74LVCR2245A Other Parts Discussed in Thread: SN74LVCR2245 Dears We have identify one case, only one of the output pin(PINA) of SN74LVCR2245 have pulled up to a stable 3.3V(vcc2), and power down(VCC1) the device. we have find the output…
    • over 5 years ago
    • Logic
    • Logic forum
  • SN74LVCR2245A: how the buffer’s input resistance or input current affect the Vin?

    user6385467
    user6385467
    Part Number: SN74LVCR2245A This circuit is used to detect whether the board 2 is connected or not. Output logic 0 when connected, logic 1 when disconnected. When disconnected, Vin is 5V, buffer can output a logic 1. When connected, there are one…
    • over 5 years ago
    • Logic
    • Logic forum
  • RE: SN74LVCR2245A: Current backflow function issue

    Dylan Hubbard
    Dylan Hubbard
    Hi, When the device isn't powered the I/O pins go into a high-impedance state due to the Ioff circuitry. There is some leakage current during this state which is spec'd in the datasheet at +/- 10 uA. This could be what is causing the voltage you are…
    • over 7 years ago
    • Logic
    • Logic forum
  • SN74LVCR2245A: RGY package electrical connection for exposed pad

    Patrick Kelly26
    Patrick Kelly26
    TI Thinks Resolved
    Part Number: SN74LVCR2245A The data sheet does not mention what potential to connect the exposed pad to. Is it grounded or left floating?
    • over 7 years ago
    • Logic
    • Logic forum
  • Answered
  • RE: SN74LVC2G14: damping resistor integrated version

    Clemens Ladisch
    Clemens Ladisch
    Resolved
    There are no Little Logic devices that have integrated damping resistors. For larger devices, resistors are indicated by "R" or "2" (e.g., SN74LVC2244A or SN74LVCR2245A). As far as I know, there are no such devices with Schmitt-trigger inputs.
    • over 6 years ago
    • Logic
    • Logic forum
  • damping resistors

    Chris Cockrill
    Chris Cockrill
    Other Parts Discussed in Thread: SN74LVC2952A ALL CMOS parts are ballanced drive parts.( high drive and Low drive are equal) The damping resistor will reduce the drive in both directions equally. They will still be balanced. The SN74LVC2952A does not…
    • over 10 years ago
    • Logic
    • Logic forum
  • RE: SN74LVC2952A

    James Lockridge19
    James Lockridge19
    This answer is quoted from the following post: http://e2e.ti.com/support/logic/f/151/t/388801 "ALL CMOS parts are balanced drive parts ( high drive and Low drive are equal). The damping resistor will reduce the drive in both directions equally. They…
    • over 10 years ago
    • Logic
    • Logic forum
  • Answered
  • RE: SN74LVT245B: Output Impedance ?

    Emrys Maier
    Emrys Maier
    Resolved
    Hi Kevin, The maximum speed rating of a logic device is a tricky subject - primarily because these devices aren't typically characterized for bit rate. The SN74LVT245B has _very_ strong output drivers (seen in the datasheet by the IOH/IOL ratings of…
    • over 8 years ago
    • Logic
    • Logic forum

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