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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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  • Answered

    SN7406: I need a different logic family. 0 Locked

    836 views
    8 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74HCS72-Q1: SN74HCS72-Q1 input and output issue 0 Locked

    781 views
    3 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    CD4013B: CD4013B input and output issue 0 Locked

    1190 views
    4 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74HC74A: Request SN74HC74A and SN74HC132A Datasheet 0 Locked

    484 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74AUP3G17: Ibis model for SN74AUP3G17? 0 Locked

    438 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC1G07: what is the Vol(max) when Vcc = 3.3V and Iol = 4mA or 3.39mA 0 Locked

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

    SN74AHCT1G125: what the VIH and VIL would be if VCC only 3.3V 0 Locked

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

    SN74LV1T34: level shifter for 5V, 20MHz clock signal to 3.3V 0 Locked

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

    SN74AUP1T08: Help with output oscillating on Schmitt Trigger AND 0 Locked

    1887 views
    10 replies
    Latest over 4 years ago
    by Matt Mueggenberg
  • Suggested Answer

    SN74AHCT139: Taping dimension tolerance 0 Locked

    363 views
    2 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74AHC157: Taping dimension tolerance 0 Locked

    386 views
    2 replies
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    TXB0104: TXB0104 input behavior 0 Locked

    1335 views
    3 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AUP1G125: Minimizing dynamic / shootthrough current 0 Locked

    897 views
    15 replies
    Latest over 4 years ago
    by Alfred Fuchs1
  • Suggested Answer

    LSF0108: Voltage drop across 200k resister 0 Locked

    367 views
    1 reply
    Latest over 4 years ago
    by Michael J Schultis
  • Answered

    TXS0108E: Calculation of VOL 0 Locked

    432 views
    6 replies
    Latest over 4 years ago
    by u-ted
  • Suggested Answer

    LSF0102: level shift for EMMC signal 0 Locked

    880 views
    2 replies
    Latest over 4 years ago
    by Michael J Schultis
  • Answered

    TXB0108: output signal in 5v side not as prospected 0 Locked

    533 views
    9 replies
    Latest over 4 years ago
    by Michael J Schultis
  • Answered

    LMC567: FSK Demod 0 Locked

    1365 views
    2 replies
    Latest over 4 years ago
    by Gareth Williams79
  • Answered

    SN74AVC8T245: unused pin connection 0 Locked

    349 views
    2 replies
    Latest over 4 years ago
    by user6004480
  • Answered

    I want to know the ECCN of TI products 0 Locked

    1413 views
    2 replies
    Latest over 4 years ago
    by user5896731
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