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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

    SN74AVC4T245: 3.3v to 3.3v shift? 0 Locked

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

    LSF0108: 3.3v to 3.3v level shift 0 Locked

    397 views
    2 replies
    Latest over 4 years ago
    by Tommy Tzeng
  • Suggested Answer

    SN74HC245: Max junction temp spec 0 Locked

    333 views
    1 reply
    Latest over 4 years ago
    by Rami Mooti1
  • Suggested Answer

    SN74AXC4T245: DIR Behavior During Power-Up/Down When xOE# is Tied to Ground 0 Locked

    429 views
    5 replies
    Latest over 4 years ago
    by Dylan Hubbard
  • Answered

    TI's replacement of LM239QT 0 Locked

    282 views
    2 replies
    Latest over 4 years ago
    by Chuck Sins
  • Answered

    SN74AVCH4T245: difference between sn74avch4t245rgyr and 74avch4t245rgyrg4 0 Locked

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

    SN74AVC2T45-Q1: Is SN74AVC2T45-Q1 qualified with AEC? 0 Locked

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

    SN74AXC1T45: Ultra low consumption level shifter uart application 0 Locked

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

    74ls107a 0 Locked

    595 views
    3 replies
    Latest over 4 years ago
    by Alex aan de Stegge
  • Answered

    LSF0108-Q1: How much its high level output voltage min is? 0 Locked

    366 views
    2 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Answered

    TXB0106: Maximum continuous output current +1 Locked

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

    TXB0108: TI solution suggestion 0 Locked

    375 views
    3 replies
    Latest over 4 years ago
    by Dylan Hubbard
  • Answered

    SN74GTL2003: SN74GTL2003 : Is it possible to translate 3.3V to 5V? 0 Locked

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

    TXU0304-Q1: What is "Glitch-Free Power Supply Sequencing"? 0 Locked

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

    TI cross for MAX6467XS22D3+T 0 Locked

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

    SN74LVC1T45: The input to SN74LVC1T45DCKR is in between high and low 0 Locked

    434 views
    5 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    LSF0204: Possible to pass through voltage without translating? 0 Locked

    481 views
    1 reply
    Latest over 4 years ago
    by Rami Mooti1
  • Suggested Answer

    SN74LVC08A: Different Input Voltage Levels 0 Locked

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

    SN74LV245A: Unused I/O floating Issues : Schematic review 0 Locked

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

    TXB0304: Can TXB0304 be used to transfer I2C signal? 0 Locked

    756 views
    6 replies
    Latest over 4 years ago
    by Rami Mooti1
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