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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

    SN74HC00-Q1: Output status in some input 0 Locked

    646 views
    2 replies
    Latest over 5 years ago
    by Johnny Guo
  • Answered

    SN74AUP1G14: Spice model query 0 Locked

    577 views
    2 replies
    Latest over 5 years ago
    by zhipei zhang
  • Suggested Answer

    TXB0102: TXB0102 Recommended schematic 0 Locked

    432 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    TXB0104: TXB0104 function 0 Locked

    213 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    Is there an open drain buffer/device that has schmit trigger CMOS input? 0 Locked

    365 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74LV74A: How to set Tdelay for ^CLR? 0 Locked

    509 views
    4 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74ALVC125: Thermal resistance junction to board junction to case and maximum junction temperature. 0 Locked

    494 views
    3 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    LSF0108: Vref_B can't reach 3.3V? 0 Locked

    511 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74AXC4T245: Does part placement matter? 0 Locked

    344 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    TXB0108: all pins voltage is low 0 Locked

    502 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    SN74AUP1G17: Used in Cascade connection and simulaiton models needed 0 Locked

    442 views
    4 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AXC4T774: Termination resistor 0 Locked

    406 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74LVC8T245: OE pin connection 0 Locked

    263 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    TXS02324: TXS02324 SIMIO Configuration 0 Locked

    367 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74FB2040: Datasheet interpretation at Port B 0 Locked

    334 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AUP2G08: Output pin's Current Consumption 0 Locked

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

    CY74FCT399T: Select pin(S) standard voltage level 0 Locked

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

    CD4521B: Usage of CD4521B 0 Locked

    659 views
    2 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    PAL16R4AM: PAL16R4A Full Power vs PAL16R4A-2 Half Power 0 Locked

    516 views
    5 replies
    Latest over 5 years ago
    by Michael Davis51
  • Answered

    SN74HC244: SUITABLE REPLACEMENT FOR OBSOLETE NXP 74HC244N 0 Locked

    745 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
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