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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

    SN74LVC1T45: SN74LVC1T45 output is too much rising edge noise 0 Locked

    1440 views
    8 replies
    Latest over 6 years ago
    by mai xue
  • Answered

    SN74AUP1T34-Q1: whether the part support signal direction from high voltage to low voltage 0 Locked

    724 views
    4 replies
    Latest over 6 years ago
    by zhipei zhang
  • Suggested Answer

    SN74LVC16244A: Question about the input groove when rise and fall time 0 Locked

    543 views
    1 reply
    Latest over 6 years ago
    by Emrys Maier
  • Suggested Answer

    CD4029B: Best IC for presettable up/down counter for use with 7-segment display 0 Locked

    1849 views
    3 replies
    Latest over 6 years ago
    by Emrys Maier
  • Answered

    SN74LVC06A: RGY (QFN) Package Temp Rating and Thermal Pad Connection 0 Locked

    748 views
    1 reply
    Latest over 6 years ago
    by Emrys Maier
  • Answered

    CD74ACT02: Recommended method for preventing VCC backfeed 0 Locked

    608 views
    1 reply
    Latest over 6 years ago
    by Emrys Maier
  • Answered

    CD40109B: input over-voltage protection diode circuit 0 Locked

    1991 views
    4 replies
    Latest over 6 years ago
    by Emrys Maier
  • Suggested Answer

    CD74HC04: Hex inverter availability 0 Locked

    574 views
    3 replies
    Latest over 6 years ago
    by ShreyasRao
  • Answered

    SN74LVC1G08: Concern on connecting 3.3V IO to Input when the device is Powered by 1.8V 0 Locked

    259 views
    2 replies
    Latest over 6 years ago
    by Dylan Hubbard
  • Suggested Answer

    TINA/Spice/TXS0108E: Spice/TXS0108E 0 Locked

    1511 views
    6 replies
    Latest over 6 years ago
    by Herman Theodorus
  • Answered

    SN74LVC2T45: Series termination and pull up resistors 0 Locked

    681 views
    1 reply
    Latest over 6 years ago
    by Dylan Hubbard
  • Suggested Answer

    TINA/Spice/SN7400: TINA/Spice/ 0 Locked

    2401 views
    3 replies
    Latest over 6 years ago
    by Jatin Mayekar
  • Answered

    Circuit recommendations for 8k2 comparator 0 Locked

    719 views
    9 replies
    Latest over 6 years ago
    by IUsedToBeARealPerson (M-W)
  • Suggested Answer

    TXB0104: status changes issue in FCT test 0 Locked

    1073 views
    8 replies
    Latest over 6 years ago
    by ShreyasRao
  • Suggested Answer

    SN74LVC1G123: SN74LVC1G123 Spice model 0 Locked

    2926 views
    1 reply
    Latest over 6 years ago
    by Emrys Maier
  • Not Answered

    [FAQ] Why is there no PSpice model for a Monostable Multivibrator device? 0 Locked

    4582 views
    0 replies
    Started over 6 years ago
    by Emrys Maier
  • Answered

    SN74LVTH16374: Maximum Junction Temperature for the SN74LVTH16374DL 0 Locked

    357 views
    2 replies
    Latest over 6 years ago
    by Sam Shoemaker
  • Suggested Answer

    TXS0104E: MDIO signal voltage level shift 0 Locked

    929 views
    6 replies
    Latest over 6 years ago
    by ShreyasRao
  • Answered

    SN74LV1T34: SN74LV1T34 0 Locked

    480 views
    1 reply
    Latest over 6 years ago
    by ShreyasRao
  • Suggested Answer

    LSF0102: Will this work for the fan tacho and pwm pins 0 Locked

    513 views
    5 replies
    Latest over 6 years ago
    by ShreyasRao
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