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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

    SN74LVC1G123: Question about 74LVC1G123DCURG4. 0 Locked

    246 views
    2 replies
    Latest over 1 year ago
    by Kazuya Nakai59
  • Answered

    SN74HC163: Small package question 0 Locked

    280 views
    1 reply
    Latest over 1 year ago
    by Malcolm Lyn
  • Suggested Answer

    SN74LS244: SN74LS244NSR 0 Locked

    672 views
    22 replies
    Latest over 1 year ago
    by Malcolm Lyn
  • Answered

    SN74AHC1G08: About Marking of PCN#20240203000.0 (SN74AHC1G08QDCKRQ1) 0 Locked

    859 views
    7 replies
    Latest over 1 year ago
    by Albert Xu1
  • Answered

    TXS0206A: How to use CLK-f pin functionality 0 Locked

    210 views
    1 reply
    Latest over 1 year ago
    by Jack Guan
  • Answered

    TXV0106-Q1: RGMII trace length 0 Locked

    390 views
    3 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Suggested Answer

    TXU0204: Output Enable Control 0 Locked

    249 views
    1 reply
    Latest over 1 year ago
    by Michael Ikwuyum
  • Suggested Answer

    SN74AXC1T45: SN74AXC1T45 DIR PIN 0 Locked

    247 views
    2 replies
    Latest over 1 year ago
    by Rajat Singh
  • Suggested Answer

    SN74AHCT74: SN74AHCT74 SN74AHCT24 SN74AHC04 SN74AHC245 Old Rev datasheets. 0 Locked

    305 views
    2 replies
    Latest over 1 year ago
    by Hiroaki Yuyama TED
  • Suggested Answer

    SN74LVCH8T245: Thermal pad connect to Pin 21? 0 Locked

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

    SN74HCT273A: Data Sheet request 0 Locked

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

    SN74LVC2G32: Thermal info for SN74LVC2G32DCUR 0 Locked

    346 views
    2 replies
    Latest over 1 year ago
    by Owen Westfall
  • Suggested Answer

    SN74LVC06A-EP: SN74LVC06AMDREP 0 Locked

    275 views
    4 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    TXS0108E: TXS0108EPWR datasheet revision 0 Locked

    326 views
    1 reply
    Latest over 1 year ago
    by Jack Guan
  • Suggested Answer

    LSF0108: QSPI signal two-way communication, when the rate increases to 50MHz, there is a problem of inconsistent data written and read 0 Locked

    551 views
    11 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Answered

    TXS0102: Level shift for MDC/MDIO 0 Locked

    875 views
    10 replies
    Latest over 1 year ago
    by Hyoungrae Ryu
  • Suggested Answer

    CD4536B: CD4536BDWR Performance problem 0 Locked

    272 views
    3 replies
    Latest over 1 year ago
    by Noel Fung
  • Suggested Answer

    SN74LVC8T245: Usage of device Input/output with power supply without series resistance 0 Locked

    295 views
    1 reply
    Latest over 1 year ago
    by Michael Ikwuyum
  • Suggested Answer

    SN74HCT244-Q1: ESD rating (HBM) 0 Locked

    301 views
    3 replies
    Latest over 1 year ago
    by Malcolm Lyn
  • Not Answered

    SN74LVC1G125: OrCAD (PSpice import .cir/olb) model error: Values must be monotonic increasing 0 Locked

    478 views
    3 replies
    Latest over 1 year ago
    by Jerome GILLE
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