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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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  • Not Answered

    SN74LVC1G17: What is the spike leakage current on input pin? 0 Locked

    997 views
    5 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LS373: Different between SN74LS373 and SN74HC373 0 Locked

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

    TXS0102: TXS0102 Rising Time 0 Locked

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

    LSF0108: VB leak voltage to VrefA 0 Locked

    1105 views
    13 replies
    Latest over 4 years ago
    by Miranda Gu
  • Answered

    SN74AVC4T234: We would like to use this part to translate between 1.0 and 3.3 volts. What would the prop times be at these voltages? 0 Locked

    495 views
    6 replies
    Latest over 4 years ago
    by Bill Kury
  • Suggested Answer

    ESD test results 0 Locked

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

    SN74HC04: wrong PSpice model 0 Locked

    1036 views
    2 replies
    Latest over 4 years ago
    by Karan Kotadia
  • Answered

    SN54HC367: Equivalent to MM70C97J/883 0 Locked

    679 views
    4 replies
    Latest over 4 years ago
    by Danilo A.
  • Suggested Answer

    SN74LVC1G17: We want to check the SN74LVC1G17 output status when input is floating 0 Locked

    289 views
    2 replies
    Latest over 4 years ago
    by Dylan Hubbard
  • Answered

    SN74AVC8T245: Max Data Rates? 0 Locked

    334 views
    2 replies
    Latest over 4 years ago
    by Dylan Hubbard
  • Suggested Answer

    TXB0102: Can this device support SPI translation at 12MHz? 5V to 3.3V. 0 Locked

    639 views
    3 replies
    Latest over 4 years ago
    by Dylan Hubbard
  • Answered

    SN74AVC4T245: SN74AVC4T245 0 Locked

    356 views
    2 replies
    Latest over 4 years ago
    by Prasanthi Busineni56
  • Answered

    SN74AVC4T245: SN74AVC4T245 0 Locked

    518 views
    5 replies
    Latest over 4 years ago
    by Prasanthi Busineni56
  • Suggested Answer

    SN74LVC1G34: Could you please suggest the redriver or buffer solution for the i2s? 0 Locked

    672 views
    2 replies
    Latest over 4 years ago
    by Emrys Maier
  • Not Answered

    SN74AUC125: About IBIS model 0 Locked

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

    Point of contact for pricing and SEE/reliability data for QML-V/SEP logic products 0 Locked

    349 views
    3 replies
    Latest over 4 years ago
    by Wade Vonbergen
  • Answered

    SN74ACT7881_Suppply Voltage and IO Voltage 0 Locked

    302 views
    3 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    LSF0108: How to use 0 Locked

    354 views
    2 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    TXB0104: Is there have any other parts is simialr to TXB0104 but can support 130M datarate and SPI interface? 0 Locked

    406 views
    4 replies
    Latest over 4 years ago
    by Zhizhao Niu
  • Suggested Answer

    SN74AXC4T774: SPI e Level-Shifting 0 Locked

    555 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
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