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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

    SN74LVC8T245-EP: Using mixed voltage on VCCA port 0 Locked

    324 views
    2 replies
    Latest over 1 year ago
    by Joe Ryan
  • Answered

    SN74LVCH245A: NIPDAU | SN Lead Finish 0 Locked

    864 views
    3 replies
    Latest over 1 year ago
    by Albert Xu1
  • Answered

    SN74LS08: ESD rating 0 Locked

    237 views
    1 reply
    Latest over 1 year ago
    by Ian Graham
  • Answered

    SN74LVC4245A: what bus transceiver to translation from a 3.3V to a 5V/3.3V system? 0 Locked

    702 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    Logic functions with open drain outputs 0 Locked

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

    SN74AXC2T45: Does A1 A2 B1 B2 of SN74AXC2T45 have internal pull-up? 0 Locked

    413 views
    5 replies
    Latest over 1 year ago
    by Leo Ma
  • Suggested Answer

    SN74LVC245A: Input Current Requirements 0 Locked

    720 views
    7 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AVCH16T245: Logic forum 0 Locked

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

    SN74HCS245-Q1: Use case Vcc=3V, VI=5V 0 Locked

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

    SN74HCT04A_SN74HCT04A datasheet 0 Locked

    378 views
    2 replies
    Latest over 1 year ago
    by Tsuyoshi Kanakogi
  • Suggested Answer

    SN74AVC8T245: SN74AVC8T245 0 Locked

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

    SN74LVTH16245A: short-circuit current 0 Locked

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

    SN74LVC2G17: Questions of SN74LVC2G17 0 Locked

    323 views
    3 replies
    Latest over 1 year ago
    by Albert Xu1
  • Answered

    SN74LV244A: Safety Failure Modes 0 Locked

    311 views
    4 replies
    Latest over 1 year ago
    by Roberto Sánchez
  • Answered

    SN74LV1T04-Q1: SN74LV1T04-Q1 is an inverter or non-inverter? 0 Locked

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

    CD4516B: Need to understand why the waveform 0 Locked

    398 views
    6 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    LSF0102: Questions of LSF0102 0 Locked

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

    SN74HC139: IO Level of SN74HC139PWR and SN74HC138PWR 0 Locked

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

    SN74LVC2G14: SN74LVC2G14IDCKRQ1 0 Locked

    328 views
    4 replies
    Latest over 1 year ago
    by Kaoutar Ben Kaddour
  • Answered

    SN74LVC07A: SN74LVC07AIPWREP 0 Locked

    272 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
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