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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

    SN74LV126A: EOL plan 0 Locked

    351 views
    2 replies
    Latest over 5 years ago
    by Hideyuki Takisawa
  • Answered

    SN74LVC541A-EP: Y1 output level during Vcc ramp up 0 Locked

    521 views
    3 replies
    Latest over 5 years ago
    by Wade Vonbergen
  • Suggested Answer

    SN74AUP2G17: SN74AUP2G17DCKR asking the data. 0 Locked

    362 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74LVC1G126: possible to have 5V input with SN74LVC1G126? 0 Locked

    339 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74AHC1G08: SN74AHC1G08DBVR Tc 0 Locked

    311 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74LVC138A: Is MTBF increasing if you have 5V in on the signals 0 Locked

    356 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74AVC4T774: SN74AVC4T774 application problems 0 Locked

    413 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    TC7SZ08F replacement 0 Locked

    251 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    HC00 and part numbers 0 Locked

    541 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AVC2T45: HDMI level Shift, require max data rates is 1Gbps. 0 Locked

    442 views
    3 replies
    Latest over 5 years ago
    by David (ASIC) Liu
  • Suggested Answer

    SN74LVC1G17: SN74LVC1G17DCK input is bipolar or CMOS input 0 Locked

    341 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    TXB0108: tpd is beyond the specification in the datasheet 0 Locked

    245 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    CD4504B-EP: SPICE Model 0 Locked

    572 views
    1 reply
    Latest over 5 years ago
    by Wade Vonbergen
  • Answered

    SN74LVT16245A: About a input signal frequency. 0 Locked

    289 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G02: Typical Icc of SN74LVC1G02 0 Locked

    529 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74LS624: Crystal connection method and internal circuit 0 Locked

    1319 views
    2 replies
    Latest over 5 years ago
    by user6165533
  • Suggested Answer

    SN74LVC14A: SN74LVC14APW: input port protection circuit 0 Locked

    1658 views
    11 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74AVC2T244: Need Thermal Details 0 Locked

    328 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74LVC1T45: Not able to import in TINA 0 Locked

    257 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    Voltage Translator Compliant to SD 3.0 0 Locked

    609 views
    2 replies
    Latest over 5 years ago
    by Art Mecina
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