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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 as a level shifter 0 Locked

    1198 views
    3 replies
    Latest over 15 years ago
    by Roger Plante
  • Not Answered

    Loading down the sn74auc1g126 0 Locked

    325 views
    1 reply
    Latest over 15 years ago
    by Chris Cockrill
  • Answered

    SN74AVC4T245 Power Consumption 0 Locked

    484 views
    2 replies
    Latest over 15 years ago
    by Steven Carter
  • Not Answered

    SN74AVCH4T245 and SN74AVCH8T245 bus hold circuitry pulls substantial current 0 Locked

    424 views
    1 reply
    Latest over 15 years ago
    by Chris Cockrill
  • Not Answered

    PCA9545A and usage with different voltages levels on I2C busses 0 Locked

    1247 views
    5 replies
    Latest over 15 years ago
    by Roland Pang
  • Not Answered

    The spec of input transition rate of LVC00A,04A,06A,07A 0 Locked

    548 views
    4 replies
    Latest over 15 years ago
    by Hiroshi Hashimoto16564
  • Answered

    SN74AVC24T245ZRGR Need Prop delay 1-641580006 0 Locked

    854 views
    1 reply
    Latest over 15 years ago
    by Hattie
  • Not Answered

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    320 views
    1 reply
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    by Chris Cockrill
  • Answered

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    406 views
    1 reply
    Latest over 15 years ago
    by Chris Cockrill
  • Answered

    Power Consumption in SN74AVC16T245 0 Locked

    387 views
    1 reply
    Latest over 15 years ago
    by Chris Cockrill
  • Not Answered

    SN74CBTLV1G125DCKR vs. 74CBTLV1G125DCKR, what is the difference? 0 Locked

    359 views
    1 reply
    Latest over 15 years ago
    by Chris Cockrill
  • Suggested Answer

    Need Auto-sensing level shifter/bus switch 0 Locked

    398 views
    1 reply
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    by Hattie
  • Not Answered

    TXS0108E external pull-up spec 0 Locked

    581 views
    1 reply
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  • Not Answered

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    367 views
    1 reply
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    TTL gate characteristics 0 Locked

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    3 replies
    Latest over 15 years ago
    by Chris Cockrill
  • Suggested Answer

    TPD8S009 running at 3.75Gb/s 0 Locked

    563 views
    2 replies
    Latest over 15 years ago
    by Hattie
  • Answered

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    515 views
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    637 views
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  • Answered

    Programming TLC59116 0 Locked

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    SN74LV815AN counter problem 0 Locked

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