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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

    SN74AUP1G126: Operating with VCC of 1.05V (+/-0.05V) 0 Locked

    415 views
    3 replies
    Latest over 2 years ago
    by Jack Campbell
  • Answered

    SN74LV541A: About VOH 0 Locked

    236 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AXC2T245: SN74AXC2T245RSWR material currently has 5800 pieces in stock, with oxidation accounting for about 60%. Please help confirm if there is a way to handle oxidation in order to continue using it in the future. Thank you 0 Locked

    217 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Answered

    SN74LV06A: About l Transition Rate specification 0 Locked

    307 views
    5 replies
    Latest over 2 years ago
    by Clemens Ladisch
  • Not Answered

    CD74HC4046A: CD74HC4046APWR related issues 0 Locked

    208 views
    1 reply
    Latest over 2 years ago
    by vicente flores prado
  • Suggested Answer

    CD4098B: CD4098B spice model 0 Locked

    483 views
    1 reply
    Latest over 2 years ago
    by Jack Campbell
  • Suggested Answer

    SN74AUP1G74: Wrong symbol 0 Locked

    251 views
    1 reply
    Latest over 2 years ago
    by Jack Campbell
  • Suggested Answer

    SN74AHC1G32: Date rate (MBps) vs Frequency (Hz) 0 Locked

    361 views
    1 reply
    Latest over 2 years ago
    by Jack Campbell
  • Suggested Answer

    TXS0206: SD CARD LEVEL TRANSLATION 0 Locked

    259 views
    3 replies
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUP1G74: junction to case thermal resistance 0 Locked

    248 views
    3 replies
    Latest over 2 years ago
    by Malcolm Lyn
  • Suggested Answer

    SN74LVC8T245-Q1: Decaps requirement 0 Locked

    219 views
    1 reply
    Latest over 2 years ago
    by Michael Ikwuyum
  • Suggested Answer

    SN74LVC2G32-Q1: Decaps requirement 0 Locked

    233 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC125A: OD Configuration 0 Locked

    275 views
    2 replies
    Latest over 2 years ago
    by Clemens Ladisch
  • Not Answered

    SN74ALVC164245: SN74ALVC164245 0 Locked

    222 views
    5 replies
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    TXB0304: Requesting for Switching frequency of TXB0304RUTR 0 Locked

    205 views
    2 replies
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    TXB0108: TXB0108 SDL and SCL issue 0 Locked

    241 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LV244A: The reason why "UPDATE thermal value" from Rev.P datasheet to Rev.Q datasheet. 0 Locked

    197 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74HCS21: SN74HCS21's Thermal Derating 0 Locked

    311 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Answered

    SN74LV244AT: P2P replacement 0 Locked

    286 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC14A: The input impedance for SN74LVC14A 0 Locked

    316 views
    4 replies
    Latest over 2 years ago
    by Zhang Liang
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