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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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  • Discussion

    TXB0304: IBIS Model not outputting expected voltage in ADS. Locked

    467 views
    3 replies
    Latest over 1 year ago
    by Jack Guan
  • Suggested Answer

    TXB0104-Q1: TXB0104-Q1 Max Date Rate Issue 0 Locked

    349 views
    2 replies
    Latest over 1 year ago
    by Xiaoxiang Liu
  • Discussion

    TXB0104: Use on 1.8V level with 0.2xsupply voltage spec for logic low Locked

    391 views
    7 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUP1G32: AUP1G32 for Automotive parts 0 Locked

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

    LSF0108: level transfer issue 0 Locked

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    9 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74AUP1G98: SN74AUP1G98DRL Storage Temperature Range 0 Locked

    263 views
    2 replies
    Latest over 1 year ago
    by Markus Lempen37
  • Answered

    SN74LV594A: Could I wire pin 3 "QD" to ground directly event this pin is at output high situation, VCC=P3V3 0 Locked

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

    SN74AVC2T244: Input Hysteresis 0 Locked

    389 views
    2 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Suggested Answer

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    1 reply
    Latest over 1 year ago
    by Michael Ikwuyum
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    by Clemens Ladisch
  • Suggested Answer

    TXS0104E: MDMS report 0 Locked

    328 views
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    by Clemens Ladisch
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    by Rani T C
  • Discussion

    TXS0102: OE pin pull up and pull down resistor Locked

    761 views
    4 replies
    Latest over 1 year ago
    by Jack Guan
  • Discussion

    TXB0104-Q1: TXB0104-Q1 for Uart Issue Locked

    780 views
    7 replies
    Latest over 1 year ago
    by Jack Guan
  • Answered

    SN74LXC1T14-Q1: Need to Have 5V Square Wave from 0.8Vpp Clipped Sine Wave TCXO Source 0 Locked

    858 views
    8 replies
    Latest over 1 year ago
    by Wira Aditama
  • Suggested Answer

    LSF0108: TXS0108 & LSF0108 Diff? 0 Locked

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

    SN74LVC1G11: Oputput state when unpowered 0 Locked

    428 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Discussion

    SN74AXC4T774-Q1: SN74AXC4T774-Q1 is Driving MISO line to LOW Locked

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

    SN74AUP1G125: Max V_OL for Vcc=1.1V? 0 Locked

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

    SN74LVC1G00: About SN74LVC1G00 failure mode 0 Locked

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    1 reply
    Latest over 1 year ago
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