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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

    SN74LVC1G125: PSpice model error: Values must be monotonic increasing 0 Locked

    995 views
    4 replies
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    LSF0102-Q1: LSF0102-Q1 0 Locked

    271 views
    1 reply
    Latest over 4 years ago
    by Chad Crosby
  • Suggested Answer

    TXS0102: The max frequency this device can support? 0 Locked

    333 views
    3 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC1T45: SN74LVC1T45 and TXB0108, TXS0102 connection 0 Locked

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

    SN74LVC8T245: SN74LVC8T245DGVR Latch-up test current 0 Locked

    376 views
    3 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Suggested Answer

    SN74LV1T02: Is the product suitable for Class 2 medical devices? 0 Locked

    332 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    CD4521B: Clarification on datasheet 0 Locked

    1833 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AVC2T244: V_OL spec 0 Locked

    315 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AUP1G125: Datasheet error - LVC vs. AUP 0 Locked

    507 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC1G08: The difference between SN74LVC1G08DRY2 and SN74LVC1G08DRYR 0 Locked

    408 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUCH244: ICC_A / ICC_B currents ? 0 Locked

    301 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Not Answered

    [FAQ] How do I select a bypass capacitor for a CMOS logic device? 0 Locked

    5393 views
    0 replies
    Started over 4 years ago
    by Emrys Maier
  • Suggested Answer

    LMC567: Timing component 0 Locked

    299 views
    1 reply
    Latest over 4 years ago
    by Robert Clifton56
  • Answered

    SN74LVC1G08: Logic part get damaged 0 Locked

    1167 views
    14 replies
    Latest over 4 years ago
    by Tomasz Tatara
  • Suggested Answer

    SN74LVTH125: SN74LVTH125RGY 0 Locked

    742 views
    5 replies
    Latest over 4 years ago
    by Karan Kotadia
  • Answered

    SN74AHCT1G125: Bypass capacitor 0 Locked

    638 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC125A: SPI WIRED COMMUNICATION UPTO 10MHz 0 Locked

    418 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC1G11-Q1: Input voltage higher than the supply voltage 0 Locked

    681 views
    6 replies
    Latest over 4 years ago
    by Ramachandran Sivanehru
  • Suggested Answer

    SN74AVC32T245: SN74AVCxT245 Maximum Data Rates Question 0 Locked

    520 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AVC2T245: SN74AVC2T245RSWR 0 Locked

    619 views
    5 replies
    Latest over 4 years ago
    by Sangeetha Venkiteswaran
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