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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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View FAQ threads
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  • Answered

    SN74LVC245A: Output Voltage Level 0 Locked

    845 views
    8 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUC16244: meet bandwidth 533Mbps 0 Locked

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

    TXS0102: looking for replacement solution 0 Locked

    410 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC1G07: Input Voltage higher than Vcc 0 Locked

    1217 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    TXB0104: Trying to adapt voltage levels for an SDI-12 bus with a 3.3V MCU 0 Locked

    3664 views
    4 replies
    Latest over 5 years ago
    by Nicolas Harel
  • Suggested Answer

    LSF0101: Need Values for Noise Margin Calculation 0 Locked

    596 views
    2 replies
    Latest over 5 years ago
    by Anoop Kumar K V
  • Answered

    SN74LS02: ESD Rating of SN74LS02NSR 0 Locked

    351 views
    2 replies
    Latest over 5 years ago
    by Hajime Shimaya
  • Not Answered

    TXS0108E: SD card interface issue with TXS0108EPWR level translator 0 Locked

    3027 views
    15 replies
    Latest over 5 years ago
    by ShreyasRao
  • Suggested Answer

    SN74HC138: IBIS model for SN74HC138NS, SN74HC139NS 0 Locked

    803 views
    5 replies
    Latest over 5 years ago
    by Chad Crosby
  • Suggested Answer

    SN74AC08: ESD Information 0 Locked

    285 views
    1 reply
    Latest over 5 years ago
    by Chad Crosby
  • Answered

    SN74LVC1T45-EP: Max Load Capacitance 0 Locked

    573 views
    3 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AVC2T244: Maximum input voltage for /OE if VCCA is 1.8V 0 Locked

    243 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Not Answered

    CD4059A: counter 'freezing' with quickly changing jam inputs (part 2) 0 Locked

    546 views
    6 replies
    Latest over 5 years ago
    by Ryan Sarver1
  • Suggested Answer

    SN74ALVC244: Can SN74ALVC244 used in Hot insertion application 0 Locked

    319 views
    3 replies
    Latest over 5 years ago
    by Chad Crosby
  • Suggested Answer

    SN74AHC245: About the input tolerant function of SN74AHC245. 0 Locked

    707 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC2G06: Best way to lower V_IH? 0 Locked

    562 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74LVC1G123: Cext limitation 0 Locked

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

    TXB0104: Inrush current 0 Locked

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

    SN74LVC1G17: Vt+ range 0 Locked

    378 views
    1 reply
    Latest over 5 years ago
    by Chad Crosby
  • Answered

    SN74AXC8T245: SN74AXC8T245RHLR 1.8V IBIS model 0 Locked

    436 views
    4 replies
    Latest over 5 years ago
    by Chad Crosby
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