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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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  • Not Answered

    LSF0108: Is LSF0108 able to do 1.2V at sideA and also 1.2V at sideB? 0 Locked

    628 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Not Answered

    SN74AVC4T774: As a JTAG switch 0 Locked

    997 views
    1 reply
    Latest over 8 years ago
    by Clemens Ladisch
  • Suggested Answer

    Asking for alt. solution to replace LTC6994 0 Locked

    1114 views
    1 reply
    Latest over 8 years ago
    by Michael J Schultis
  • Suggested Answer

    SN74AUP1G74: CLR_not Capacitor - Resistor connection 0 Locked

    888 views
    2 replies
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    TXS0108E: TXS0108E output issue - output pins not consistent in level shifting 0 Locked

    4624 views
    7 replies
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    SN74AUP3G14: Input transition rise or fall rate 0 Locked

    1617 views
    4 replies
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    SN74AUP1G06: Output Leakage Current, SN74AUP1G06 0 Locked

    1265 views
    5 replies
    Latest over 8 years ago
    by Sornam Viswanathan V
  • Answered

    SN74ALVC164245: Placement of decoupling capacitors 0 Locked

    646 views
    1 reply
    Latest over 8 years ago
    by Clemens Ladisch
  • Answered

    LSF0108: tps386000 and lsf0108 pull up resistor issue 0 Locked

    1441 views
    4 replies
    Latest over 8 years ago
    by user1359349
  • Suggested Answer

    CD4044B: Vih for 3.3V supply operation 0 Locked

    933 views
    2 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74HC573AQDWRQ1 The output (Q) will have an indefinite output 0 Locked

    729 views
    2 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    TXB0108: One-shot circuitry and short input pulses 0 Locked

    5547 views
    12 replies
    Latest over 8 years ago
    by ShreyasRao
  • Suggested Answer

    SN74LVC244A: about SN74LVC244 Ioff 0 Locked

    949 views
    2 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVTH16245A: Looking for the land pattern to the SN74LVTH16245ADGVR 0 Locked

    870 views
    3 replies
    Latest over 8 years ago
    by ShreyasRao
  • Suggested Answer

    SN74LV244A: Δt/Δv 0 Locked

    584 views
    1 reply
    Latest over 8 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUC1G17: SN74AUC1G17 output 0 Locked

    685 views
    1 reply
    Latest over 8 years ago
    by Clemens Ladisch
  • Not Answered

    CD4077B: does CD4077B support 3.3V power supply? 0 Locked

    1025 views
    2 replies
    Latest over 8 years ago
    by Emrys Maier
  • Not Answered

    CD4077B: what's the difference of NOR Gate and Exclusive NOR gate? 0 Locked

    1418 views
    3 replies
    Latest over 8 years ago
    by Max Han
  • Suggested Answer

    TXS0104E: Rds(on) of TXS0104 in low level output 0 Locked

    3297 views
    10 replies
    Latest over 8 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AHC1G04: VIH(min) and VOH(min) with 3.3V Vcc 0 Locked

    774 views
    1 reply
    Latest over 8 years ago
    by Clemens Ladisch
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