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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 3 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

    TXB0102: Can Input voltage be higher than Vcc? 0 Locked

    630 views
    2 replies
    Latest over 4 years ago
    by Jim Palladino
  • Suggested Answer

    SN74AHC595-Q1: EMI app note and optimized layout 0 Locked

    464 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AVC4T245: High Shutdown Current 0 Locked

    398 views
    3 replies
    Latest over 4 years ago
    by Gordon McKenzie
  • Not Answered

    SN74LV165A: logic application 0 Locked

    192 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    LSF0102: UBM Dimension 0 Locked

    351 views
    2 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Suggested Answer

    CD74HC4050: buffer IC holds more current after input signal shut off 0 Locked

    456 views
    2 replies
    Latest over 4 years ago
    by Art Mecina
  • Suggested Answer

    SN74HCS125-Q1: could you please help provide the Pspice model for SN74HCS125? 0 Locked

    1532 views
    13 replies
    Latest over 4 years ago
    by JC Zhu
  • Answered

    SN74AHCT1G04: Is it Possiable to use a Inverting buffer/driver like SN74AHCT1G04 with 5V Power supply, 3.3V Sinewave input, to generate a inverted 5V Sinewave in Output Y ? 0 Locked

    455 views
    5 replies
    Latest over 4 years ago
    by Sebastian Muriel
  • Answered

    CD4010B: Pin-level ESD 0 Locked

    387 views
    3 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Answered

    SN74LS86A: About Wave Soldering Profile for SN74LS86A 0 Locked

    458 views
    1 reply
    Latest over 4 years ago
    by Rami Mooti1
  • Answered

    SN74AUP1G125: v.s. 74AUP1G125DCKRG4 0 Locked

    406 views
    2 replies
    Latest over 4 years ago
    by Mike Yu
  • Suggested Answer

    SN74AVC2T45: Can it be used for bus (e.g. SPI, MDIO, rate 4-20m) level conversion? 0 Locked

    341 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    TXS0102: Level shifter for UART, but no power sequence demand 0 Locked

    684 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    TXB0302: VIH and VIL inquire 0 Locked

    474 views
    5 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Suggested Answer

    SN74LVC8T245: Dynamic Overshoot and Undershoot 0 Locked

    1631 views
    3 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Answered

    SN54LS112A: Package confirmation 0 Locked

    370 views
    2 replies
    Latest over 4 years ago
    by May
  • Not Answered

    SN74LV06A: Abnormal Output level 0 Locked

    280 views
    5 replies
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AXC4T774: Drive Strength 0 Locked

    740 views
    3 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AHC1G126-EP: 74AHC1G126MDCKTEP 0 Locked

    498 views
    3 replies
    Latest over 4 years ago
    by Ankit Jain
  • Answered

    SN74LVC2G53: SN74AHC1G04: cheaper TI dropped-in replacement for our TI Logic part? 0 Locked

    370 views
    2 replies
    Latest over 4 years ago
    by Rami Mooti1
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