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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

    SN74AHC74Q-Q1: Process technology and number of transistor count 0 Locked

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

    SN74LVC2T45: difference between SN74LVC2T45DCTRE4 and SN74LVC2T45DCTR 0 Locked

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

    SN54LVCH244A: Confirm the small square orientation mark near pin 1 of SNJ54LVCH244AFK 0 Locked

    548 views
    4 replies
    Latest over 5 years ago
    by Jonathan Geronga
  • Answered

    SN74AHC1G86: The input protection circuit (ESD diode) characteristic on SN74AHC1G86 0 Locked

    1004 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    LSF0108: Incorrect pull-up voltage at Vref_b side 0 Locked

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

    LSF0108: EN pin capacitor 0 Locked

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

    TXS0206A: Use with SD Card in SPI mode. 0 Locked

    1102 views
    3 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74LS273: Voltage waveforms 0 Locked

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

    TXB0108: TOP MARKING QUERY ON TXB0108 0 Locked

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

    SN74AVC4T245: VCC isolation 0 Locked

    541 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC14A: Can we purchase this component in a die or wafer package? 0 Locked

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

    pin1 orientation on underside of physical component package, mechanical package feature question 0 Locked

    589 views
    2 replies
    Latest over 5 years ago
    by Wade Vonbergen
  • Answered

    SN74AUC1G240: Symbol question of YZP Package 0 Locked

    316 views
    4 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LS244: control signal & current output in spec. 0 Locked

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

    CD40109B-Q1: Help to check level shifter solution for 18V~6.5V to 1.8V application 0 Locked

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

    TXS0108E: OE pin setting 0 Locked

    3814 views
    6 replies
    Latest over 5 years ago
    by Wen Li
  • Suggested Answer

    CD4060B-MIL: Difference between CD4060BF3A and CD4060BF Part numbers 0 Locked

    664 views
    2 replies
    Latest over 5 years ago
    by Wade Vonbergen
  • Suggested Answer

    SN74HC00: Top side marking 0 Locked

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

    SN74LVC16T245: SN74LVC16T245DGVR 0 Locked

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

    TXB0104: Behavior of TXB0104 when A port is Pulled high and B port is Pulled Low 0 Locked

    547 views
    6 replies
    Latest over 5 years ago
    by Vijetha HN
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