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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] Why is there a voltage offset at the input of the SN74AXCxTxxx device?

    Dylan Hubbard
    Dylan Hubbard
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ The AXC family of Voltage Translators have built in dynamic pull-downs at the I/O. These pull-downs assist with with the glitch free power sequencing feature included in this…
    • over 3 years ago
    • Logic
    • Logic forum
  • [FAQ] Do I still need pull-up/pull-down resistors with bus-hold circuitry?

    Albert Xu1
    Albert Xu1
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ Short answer: External pull-up/down resistors are not recommended for devices with bus-hold circuitry. Explanation: A pull-up or pull-down resistor will create a voltage-divider…
    • over 3 years ago
    • Logic
    • Logic forum
  • [FAQ] Why are the TXS01xx VIH/VIL specifications so stringent?

    Dylan Hubbard
    Dylan Hubbard
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ TXS family translators utilize a FET-based architecture with an N-channel pass-gate transistor used to open and close the connection between the A-port and B-port. The FET connects…
    • over 3 years ago
    • Logic
    • Logic forum
  • [FAQ] [H] Frequently Asked Questions: Logic and Voltage Translation

    Michael J Schultis
    Michael J Schultis
    Select this link to see answers to common questions, detailed use case implementations, and part recommendations for logic and voltage translation devices. . Top Logic and Voltage Translation FAQs - All-Time How does a slow or floating input affect…
    • Answered
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the typical delay of a logic device in a particular logic family?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Timing Parameters >> Current FAQ Delays vary from device to device, however a general idea of delay can be shown graphically: Two things to note from the above graphic (1) Delay always increases as the supply…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] Where can I get a CAD symbol, soldering footprint, or 3D model for my device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ TI utilizes the Ultra Librarian software to provide symbols, footprints, and 3D models for our devices. In the product folder for your selected device, scroll down and select…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I set up a TI.com device re-stock notification?

    Sebastian Muriel
    Sebastian Muriel
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ 1. Search for the desired device in the TI store . 2. Click on the device and select the Ordering & Quality link. 3. Select the Notify me when available link. 4…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] What are the performance specifications of the HCS logic family at 3.3V operation?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ This question comes up fairly often because the HCS logic family is specified only at 2V, 4.5V, and 6V. The following min / max values are interpolated from the datasheet tables…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I select a bypass capacitor for a CMOS logic device?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G08 , SN74LVC16244A FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ For the short answer - use a 0.1uF for single supply logic devices like the SN74LVC1G08, or a 0.022uF capacitor for each…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] What's the difference between logic output types (push-pull, open-drain, 3-state)?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Push-Pull Output A push-pull output can source current in the high state or sink current in the low state. In modern CMOS devices, the most common configuration for a push-pull…
    • over 4 years ago
    • Logic
    • Logic forum
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View FAQ threads
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  • Answered

    TPLD1201: How to get programmed TPLD1201 +1 Locked

    783 views
    4 replies
    Latest over 1 year ago
    by user4779049
  • Answered

    SN74LVC2G32-EP: Theta-JC 0 Locked

    463 views
    10 replies
    Latest over 1 year ago
    by Albert Xu1
  • Answered

    SN74LVC2T45-Q1: SN74LVC2T45QDCURQ1 output short to battery,I use a 120R resistance limit current. 0 Locked

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

    CD74HC4094: The relationship between input and output 0 Locked

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

    SN74AVC1T45: Max. junction temp 0 Locked

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

    TXS0104E: without input, output side getting clk 0 Locked

    376 views
    4 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Not Answered

    [FAQ] TXS and LSF devices support Open-Drain and Push-Pull applications. How do I choose Open-Drain or Push-Pull Mode? 0 Locked

    765 views
    0 replies
    Started over 1 year ago
    by Michael Ikwuyum
  • Not Answered

    [FAQ] How can I estimate Data Rate Frequency not given for my voltage level? 0 Locked

    690 views
    0 replies
    Started over 1 year ago
    by Michael Ikwuyum
  • Not Answered

    [FAQ] Should I use Auto-Bidirectional level-shifters for Fixed directional applications? 0 Locked

    615 views
    0 replies
    Started over 1 year ago
    by Michael Ikwuyum
  • Not Answered

    [FAQ] Fixed DIR / DIR CNTRL Level-Shifters 0 Locked

    741 views
    0 replies
    Started over 1 year ago
    by Michael Ikwuyum
  • Not Answered

    [FAQ] Auto-Bidirectional Level-Shifters 0 Locked

    1127 views
    0 replies
    Started over 1 year ago
    by Michael Ikwuyum
  • Answered

    CD74HC4538-Q1: Unused Pins Guidance and ESD Rating 0 Locked

    488 views
    7 replies
    Latest over 1 year ago
    by Hannah Bludau
  • Suggested Answer

    TXS0104E: Logic forum 0 Locked

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

    SN74LVC1G123: Turn-off time of Vcc, when large Cext is connected 0 Locked

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

    TXS0104E: Can I use the TXS0104E as a replacement for the TXS0102 for I2C applications? 0 Locked

    736 views
    6 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74LXC1T45: Dimensions of package type X2SON 0 Locked

    290 views
    2 replies
    Latest over 1 year ago
    by Kazufumi Igarashi
  • Answered

    CD4046B: Sine wave generation 0 Locked

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

    BQ79600EVM: SPI_RDY does not get high after a read frame 0 Locked

    734 views
    13 replies
    Latest over 1 year ago
    by Lukas Hirsch
  • Suggested Answer

    LSF0204:A question about LSF family 0 Locked

    530 views
    6 replies
    Latest over 1 year ago
    by Jack Guan
  • Not Answered

    SN74HCT541: The P11 pin output waveform of SN74HCT541 is abnormal 0 Locked

    184 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
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