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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

    TXB0104: For appliying pull up register in TXB0104 0 Locked

    1911 views
    3 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC74A: Asking for the SN74LVC74APWRG4 unused pin 0 Locked

    777 views
    2 replies
    Latest over 8 years ago
    by Michael J Schultis
  • Not Answered

    TXS0108E: B side Low level problems. 0 Locked

    3099 views
    5 replies
    Latest over 8 years ago
    by Ian Yun
  • Answered

    SN74HC273: IBIS model for SN74HC273 Octal D flip flop 0 Locked

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

    LSF0108-Q1: supply current 0 Locked

    944 views
    3 replies
    Latest over 8 years ago
    by Michael J Schultis
  • Suggested Answer

    CD4059A: clock divider 0 Locked

    1396 views
    3 replies
    Latest over 8 years ago
    by Michael J Schultis
  • Suggested Answer

    SN74LV4T125: Voltage applied to input with no Vcc to chip 0 Locked

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

    TPIC6B595: TPIC6B595 as a series shift register for relay signal multiplexing 0 Locked

    1467 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    TX517EVM: Does TX517EVM both transmits and receives signal? 0 Locked

    979 views
    1 reply
    Latest over 8 years ago
    by Olu Sodipe
  • Suggested Answer

    lsf204 3.3v to 5 v translator 0 Locked

    1169 views
    3 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC126A: Thermal pad 0 Locked

    1250 views
    4 replies
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    SN74LVC1G08: How about the Absolute Maximum input clamp current when Vin>6.5V 0 Locked

    777 views
    2 replies
    Latest over 8 years ago
    by John11513
  • Not Answered

    SN74GTL2014: Hi-Z status 0 Locked

    523 views
    1 reply
    Latest over 8 years ago
    by ShreyasRao
  • Answered

    SN74AVC4T774: About typical Data Rate at “From 2.5V to 1.8V Translation” 0 Locked

    983 views
    2 replies
    Latest over 8 years ago
    by Hide
  • Suggested Answer

    74AC11074: about low jitter trigger 0 Locked

    2037 views
    5 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    TXS0102: I2C application 0 Locked

    2572 views
    3 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    LSF0108: LSF0108 sometimes won't reach 3.3V 0 Locked

    669 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    TXS0108E: Ramifications of operating VCCA=3.3V and VCCB=1.8V 0 Locked

    1094 views
    2 replies
    Latest over 8 years ago
    by Michael J Schultis
  • Suggested Answer

    High data rate and clock translated 0 Locked

    605 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    SN74HC595: several question from datasheet 0 Locked

    2852 views
    7 replies
    Latest over 8 years ago
    by Clemens Ladisch
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