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Logic

Logic

Logic forum

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Texas Instruments (TI) Logic support forum is an extensive online knowledge base where millions of technical questions and solutions are available 24/7. You can search logic IC content or ask technical support questions on everything from voltage level translation and transceivers to standard logic gates and specialty logic devices. Find the right solution for your circuit design challenges by using our TI E2E™ support forums that are supported by thousands of contributing TI experts.
Frequent questions
  • [FAQ] Difference between Multiplexer/De-multiplexer and Analog Switch

    Hari T O0
    Hari T O0
    Other Parts Discussed in Thread: TS5A3159-Q1 , TMUX1209 FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ Hi Team, May I know difference is there between mux/demux IC's and analog switch IC's? I'm comparing this in the context…
    • Answered
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I determine the output voltage (VOH, VOL) or output current (IOH, IOL) of a CMOS logic device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ The high logic level output voltage of a logic device with no load will be the supply voltage. The output current of a logic device is determined by the load connected to the device…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What happens when I connect a logic device's output to a 50 ohm transmission line?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Transmission lines cause a lot of confusion for engineers. I hope to clear up some of that here. I will break this up into a few sections, so if you already know something you can…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Can I connect two outputs from a CMOS logic device together directly?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ **** It's important to note that this FAQ is in reference to CMOS devices. Bipolar devices should not be paralleled in this fashion. **** The primary concern with connecting outputs…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What does 'partial power down' or 'Ioff' mean in the datasheet?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The " Ioff " specification in the electrical characteristics table is only in the datasheet of devices that have the special feature of " partial power down " - also known as " back…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Why does my device not switch at VIH or VIL?

    Karan Kotadia
    Karan Kotadia
    Other Parts Discussed in Thread: SN74LVC1G08 FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ What is V IH and V IL ? JEDEC - V IH min is the least positive (most negative) value of high-level input voltage for which operation…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I size pull-up or pull-down resistors?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74AUP1G34 FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ Pull-up and pull-down resistors are required in many logic systems to provide a valid logic state when a wire connected to a CMOS input…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum data rate (or operating frequency) for a logic gate or buffer?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G34 , SN74LVC1G79 FAQ: Logic and Voltage Translation > Timing Parameters >> Current FAQ ** NOTE ** This FAQ is in reference to push-pull output devices. Open-drain outputs will inherently have slower operating…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the output voltage (VOH or VOL) when the output current is X or the supply voltage is Y?

    Karan Kotadia
    Karan Kotadia
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ There are circumstances where you might want to know a VOH or VOL Value that is not given. I will describe two cases: If you want VOH for a supply voltage that is not given (for…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do the LSF translators work?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: LSF0101 , LSF0002 , LSF0102 , LSF0204 , LSF0204D , LSF0108 , LSF0102-Q1 , LSF0204-Q1 , LSF0108-Q1 FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ The LSF family of translators generates more questions…
    • over 6 years ago
    • Logic
    • Logic forum
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  • Answered

    SN74AVC4T774: Voh/Vol min and max value 0 Locked

    1125 views
    5 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74AVC16T245: Skew between channels 0 Locked

    375 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    difference between SN74AVCH24T245 and SN74AVC24T245 0 Locked

    475 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G125-Q1: About Package 0 Locked

    372 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74LVTH16244A: Bus-hold 0 Locked

    435 views
    4 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G08: Footprint size check of X2SON package 0 Locked

    824 views
    3 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74AVC4T245: about OE of 245 0 Locked

    430 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC244A: Do we have some device p2p with SN74LVC244A, but with bus hold function? 0 Locked

    278 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74HCT244: What happen if input transition violation 0 Locked

    376 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    LSF0108: Some questions of LSF0108 about the pull up and pull down resistance 0 Locked

    885 views
    11 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    TXS0108E: TXS0108E 0 Locked

    870 views
    5 replies
    Latest over 5 years ago
    by ajay barge
  • Answered

    SN74V293: Unexpected offset value 0 Locked

    984 views
    14 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74LVC1G08: What will the output be when the supply voltage is below the operating voltage? 0 Locked

    223 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74HC10-EP: Fastest rise/fall time 0 Locked

    774 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    Differential receiver *** buffer IC 0 Locked

    476 views
    6 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AC14: SN74AC14NSR Package in DXF 0 Locked

    301 views
    3 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    CD74HCT158: Output low and high current 0 Locked

    282 views
    2 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    LSF0102: LSF0102 0 Locked

    579 views
    2 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    SN74LVT16240: IC is active low inverting tristate buffer 0 Locked

    288 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    TXS0102: Multiple I2C devices 0 Locked

    594 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
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