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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 3 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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View FAQ threads
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  • Answered

    TXU0204: High level output current 0 Locked

    438 views
    5 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUC2G07: VCC = 3.3V operation and VIH 0 Locked

    320 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74LVC1G17-EP: SN74LVC1G17MDCKREP recommended temperature derating 0 Locked

    387 views
    3 replies
    Latest over 1 year ago
    by Albert Xu1
  • Suggested Answer

    SN74LV14A-Q1: About SN74LV14A-Q1's thermal information 0 Locked

    235 views
    1 reply
    Latest over 1 year ago
    by Albert Xu1
  • Not Answered

    TXS0102: TXS0102DCTR marking 0 Locked

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

    SN74AXCH2T45: SN74AXCH2T45DCUR marking gap, 22JT vs. 22IT 0 Locked

    389 views
    5 replies
    Latest over 1 year ago
    by Michael Ikwuyum
  • Answered

    SN74LVC8T245: Alternate Part Suggestion with Auto-Direction Control Feature 0 Locked

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

    TXV0106: There seems to be an error in the datasheet. (Including TXV0106-Q1) 0 Locked

    308 views
    1 reply
    Latest over 1 year ago
    by Michael Ikwuyum
  • Answered

    SN74LVC1G58: Thermal information 0 Locked

    369 views
    4 replies
    Latest over 1 year ago
    by franziskus
  • Suggested Answer

    TXS0102-Q1: Effect of Supply Tolerance 0 Locked

    363 views
    5 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74AXC4T774-Q1: Thermal Pad connection 0 Locked

    407 views
    2 replies
    Latest over 1 year ago
    by jingjun zhao
  • Answered

    SN74LVC1G125: Why OUTPUT is pulled high when PinA reach to 756mV 0 Locked

    348 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74LVC1G08-Q1: the state of input/output pin when VCC is under voltage 0 Locked

    446 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN54SLC8T245-SEP: Unused Pins - NC or Tie to GND with resistor? 0 Locked

    449 views
    4 replies
    Latest over 1 year ago
    by Moral Assraf
  • Not Answered

    SN74HCT273: SN74HCT273PWR Product performance consulting 0 Locked

    462 views
    12 replies
    Latest over 1 year ago
    by yingjiao LI
  • Answered

    SN74AUP1G17: Device drivability clarification 0 Locked

    323 views
    3 replies
    Latest over 1 year ago
    by Alder Lim
  • Suggested Answer

    CD74HCT154: Finding Replacements for Obsolete Part Numbers CD74HCT154EN and CD74HC154EN 0 Locked

    360 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    LSF0002: evaluation kit and IBIS model 0 Locked

    370 views
    2 replies
    Latest over 1 year ago
    by Jack Guan
  • Suggested Answer

    TXB0304: USB2.0 Support 0 Locked

    357 views
    5 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    TXB0104: current-sourcing capability of the driver 0 Locked

    319 views
    2 replies
    Latest over 1 year ago
    by Jack Guan
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