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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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  • Suggested Answer

    TXS0102-Q1: Slow input transition 0 Locked

    479 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC00A: Device marking 0 Locked

    648 views
    2 replies
    Latest over 7 years ago
    by Emrys Maier
  • Answered

    SN74ABT574A: About damping resistance 0 Locked

    553 views
    1 reply
    Latest over 7 years ago
    by Clemens Ladisch
  • Answered

    TXS0108E: VIL max = 0.15V -- match to an output with VOLmax = 0.45V? 0 Locked

    799 views
    4 replies
    Latest over 7 years ago
    by Amir Natan
  • Suggested Answer

    CD74HC4538: Latch-up from EMP? 0 Locked

    781 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    SN74AUP1T87: short the AB input 0 Locked

    561 views
    1 reply
    Latest over 7 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC3G07: Partial Power Down 0 Locked

    762 views
    2 replies
    Latest over 7 years ago
    by Gim Song
  • Answered

    SN74AC74: VIL higher than 2.5V replacement? 0 Locked

    470 views
    2 replies
    Latest over 7 years ago
    by [FAE] Andrew Wang
  • Answered

    SN74LVC1T45-Q1: About θja of SN74LVC1T45-EP and SN74LVC1T45-Q1 0 Locked

    674 views
    3 replies
    Latest over 7 years ago
    by Michael J Schultis
  • Suggested Answer

    SN74AHCT541: Noise characteristics specification 0 Locked

    900 views
    5 replies
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    LSF0108-Q1: Can it be used for SDIO application 0 Locked

    775 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    SN74AVCH8T245: Looking for RGMII level shifter 0 Locked

    1187 views
    2 replies
    Latest over 7 years ago
    by [FAE] Andrew Wang
  • Answered

    SN74AUC16245: IBIS model link seems broken 0 Locked

    783 views
    3 replies
    Latest over 7 years ago
    by Emrys Maier
  • Answered

    SN74HC595: Source/sink current of 74HC595@3.3V and maximum recommended length of daisy chain? 0 Locked

    4025 views
    6 replies
    Latest over 7 years ago
    by Tuomo Latto
  • Suggested Answer

    SN74LV1T34: support 50Mhz, 1.8v 0 Locked

    441 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    SN74AVCH16T245: SN74AVCH16T245 Data Rate 0 Locked

    558 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    TXS0108E: Inquiry about "Max Data Rate" parameta in datasheet. 0 Locked

    1279 views
    3 replies
    Latest over 7 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC8T245: SN74LVC8T245 0 Locked

    592 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Answered

    SN74LVC1G18: BGA pinout is ambiguous 0 Locked

    553 views
    1 reply
    Latest over 7 years ago
    by Emrys Maier
  • Answered

    SN74AVC4T774: Use as buffer or translator 0 Locked

    1068 views
    6 replies
    Latest over 7 years ago
    by Emrys Maier
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