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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

    TXB0104: Port A maximum output voltage 0 Locked

    603 views
    13 replies
    Latest over 5 years ago
    by Roy Chou1
  • Suggested Answer

    SN74AUC1G79: OUT high ISSUE when D is low 0 Locked

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

    SN74LVC08A: 50MHz clock buffer for ADS8920B SCLK input 0 Locked

    886 views
    3 replies
    Latest over 5 years ago
    by Oba
  • Answered

    Investigate alternatives 0 Locked

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

    SN74LVC1G08: VCC=0V condition 0 Locked

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

    LSF0108: We want to check whether the A side and B side is high impedance condition when not give the VCCA or VCCB. 0 Locked

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

    SN74LV1T34: can the NC pin be connected to Vcc? 0 Locked

    362 views
    1 reply
    Latest over 5 years ago
    by Chad Crosby
  • Answered

    SN74LVC125A-Q1: SN74LVC125A-Q1 in series, is it possible? 0 Locked

    664 views
    6 replies
    Latest over 5 years ago
    by Damiano Balzani
  • Answered

    Fast Implementation of Regression Analysis on TI Microcontroller (TMS320F280040) 0 Locked

    586 views
    3 replies
    Latest over 5 years ago
    by Sira Rao80
  • Suggested Answer

    SN74LVC1G14: About Recommended land pattern 0 Locked

    420 views
    6 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    TXS0206-29: Help to check TXS0206-29 package dimension details 0 Locked

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

    SN74LVC1G175: Unencrypted SPICE model? 0 Locked

    460 views
    2 replies
    Latest over 5 years ago
    by Gregory Duperon
  • Suggested Answer

    SN74LVC1G08: DeltaT/DeltaV requirement 0 Locked

    165 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
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    SN74ALVCH32245: Voltage Spike on SN74AVC32T245 OE 0 Locked

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

    SN74LVC1T45: solution to do p2p replacement of TTL1T45 0 Locked

    1110 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    TCA9539PW IO Expander 0 Locked

    292 views
    2 replies
    Latest over 5 years ago
    by SOORAJ SUNDARAN
  • Suggested Answer

    SN74AUP2G07: can i pull-up the OD output of SN74AUP2G07 through Kohm to other voltage level > VCC of this part ? 0 Locked

    603 views
    2 replies
    Latest over 5 years ago
    by ShreyasRao
  • Suggested Answer

    SN74LVC1G373: Logic forum 0 Locked

    1027 views
    5 replies
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    by Clemens Ladisch
  • Suggested Answer

    SN74LV165A: second source 0 Locked

    293 views
    1 reply
    Latest over 5 years ago
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  • Not Answered

    SN74LVC8T245: Undesired output behavior during power-up 0 Locked

    208 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
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