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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

    SN74LV06A: IBIS model 0 Locked

    247 views
    1 reply
    Latest over 2 years ago
    by Albert Xu1
  • Answered

    TXU0101-Q1: The output signal is distorted when the frequency of the input signal is ~50MHz 0 Locked

    793 views
    5 replies
    Latest over 2 years ago
    by Michael Ikwuyum
  • Suggested Answer

    SN74LVC3G17: Schematics Review 0 Locked

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

    LSF0102: About VOL regulations 0 Locked

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

    TXS0102: Schematics Review 0 Locked

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

    SN74AUP1T02: IBIS/AMI or Spice simulation model 0 Locked

    334 views
    2 replies
    Latest over 2 years ago
    by Depeng Man
  • Not Answered

    TXS0104E: High Input Impedance Issue 0 Locked

    232 views
    3 replies
    Latest over 2 years ago
    by Michael Ikwuyum
  • Answered

    SN74AUP1T97: Possible ESD issues? 0 Locked

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

    TXS0108E: IO clamping when VCC = 0V ? 0 Locked

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

    TXU0202: Non-monotonic signal at input 0 Locked

    491 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Not Answered

    SN74HC164: SN74HC164 output issue 0 Locked

    322 views
    3 replies
    Latest over 2 years ago
    by Emrys Maier
  • Answered

    SN54S175: Looking for PSPICE model 0 Locked

    312 views
    1 reply
    Latest over 2 years ago
    by Emrys Maier
  • Suggested Answer

    SN74HC08: IBIS/AMI or Spice simulation model 0 Locked

    284 views
    1 reply
    Latest over 2 years ago
    by Albert Xu1
  • Answered

    SN74HC174: Please provide the ESD (HBM and CDM) for SN74HC174N 0 Locked

    257 views
    1 reply
    Latest over 2 years ago
    by Albert Xu1
  • Suggested Answer

    TXS0102: IBIS/AMI or Spice simulation model 0 Locked

    555 views
    2 replies
    Latest over 2 years ago
    by Joshua Salinas
  • Answered

    TXB0302: Usage of IBIS model 0 Locked

    388 views
    5 replies
    Latest over 2 years ago
    by Michael Ikwuyum
  • Answered

    TXB0104: Static characteristics for OE 5V 0 Locked

    253 views
    1 reply
    Latest over 2 years ago
    by Michael Ikwuyum
  • Answered

    SN74AVC32T245: SN74AVC32T245GKER Date Code Decoding from top Marking 0 Locked

    567 views
    2 replies
    Latest over 2 years ago
    by Quynh Nguyen
  • Suggested Answer

    CD4047B: Logic forum 0 Locked

    415 views
    3 replies
    Latest over 2 years ago
    by Emrys Maier
  • Suggested Answer

    SN74HCT374: Thermal impedance by changing FAB 0 Locked

    211 views
    1 reply
    Latest over 2 years ago
    by Emrys Maier
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