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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

    LSF0204: Get the same voltage 0 Locked

    466 views
    2 replies
    Latest over 1 year ago
    by Wipop Panyatipsakul
  • Suggested Answer

    SN74LVT16245A: SN74LVT16245A Max Data Rate 0 Locked

    269 views
    1 reply
    Latest over 1 year ago
    by Malcolm Lyn
  • Answered

    SN74AHC1G14: Status of output if input is floating. 0 Locked

    297 views
    1 reply
    Latest over 1 year ago
    by Malcolm Lyn
  • Suggested Answer

    SN74HC132: FIR rate at 70% confidence level 0 Locked

    442 views
    4 replies
    Latest over 1 year ago
    by Shinichi Inoue
  • Answered

    SN74LV244A: SN74LV244A 0 Locked

    327 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    LVC Power Calculation 0 Locked

    205 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC2G00: different Pin designation for DSBGA 0 Locked

    312 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Not Answered

    TAS2505EVM: Unable to function properly, is it a hardware issue? 0 Locked

    788 views
    18 replies
    Latest over 1 year ago
    by Ivan Salazar
  • Suggested Answer

    SNJ54LS164J - Is this MIL-Spec part? 0 Locked

    331 views
    1 reply
    Latest over 1 year ago
    by Albert Xu1
  • Not Answered

    fungus mitigation 0 Locked

    285 views
    1 reply
    Latest over 1 year ago
    by Jim Carrillo
  • Answered

    SN54AHC244: when max 2.5V control state, is it correct operating? (VCC 3.3V) 0 Locked

    266 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74LVC574A: Behavior while /OE = High 0 Locked

    235 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74HC244-Q1: output current capacity 0 Locked

    456 views
    3 replies
    Latest over 1 year ago
    by Albert Xu1
  • Suggested Answer

    TXU0304: TXU0304 for SPI, speed vs propagation delay 0 Locked

    626 views
    3 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Suggested Answer

    TXB0102: Level Translation for MDC,MDIO, Ethernet MDC,MDIO 0 Locked

    722 views
    5 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Suggested Answer

    TXS0102-Q1: Please review the schematic, and have some questions 0 Locked

    270 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC2G00: Question about tPLZ, tPHZ, tPZL and tPZH in the device datasheet. 0 Locked

    537 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G04: SN74LVC1G04 0 Locked

    269 views
    1 reply
    Latest over 1 year ago
    by Malcolm Lyn
  • Answered

    TXU0104: Data transmission direction in TXU0104 0 Locked

    424 views
    3 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Discussion

    SN74LV1T126: Please help provide the value Tj max and θJC of SN74LVC1G126DCKR and SN74LV1T126DCKR Locked

    274 views
    2 replies
    Latest over 1 year ago
    by Ian Graham
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