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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

    SN74AUP1G74: USING POWER-ON AS TACT SWITCH 0 Locked

    7450 views
    26 replies
    Latest over 8 years ago
    by WOOYONG SUNG
  • Answered

    SN74LVC1G123: Enquire ƟJC for SN74LVC1G123DCTR 0 Locked

    554 views
    2 replies
    Latest over 8 years ago
    by Tiger Yeh
  • Answered

    SN74AVC4T245: SN74AVC4T245 Unused input floating 0 Locked

    1062 views
    3 replies
    Latest over 8 years ago
    by Michael J Schultis
  • Not Answered

    SN74LVC157A: SN74LVC157A BSDL file 0 Locked

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

    SN74CB3Q3257DBQR SSOP16 Layout Footprint Request 0 Locked

    1242 views
    2 replies
    Latest over 8 years ago
    by Louie
  • Suggested Answer

    SN74LVC3G14: Internal circuit of this device 0 Locked

    886 views
    3 replies
    Latest over 8 years ago
    by Emrys Maier
  • Not Answered

    SN74LV1T125: SN74LV125DCKR measure 300K Ohm Y-output between GND When power off 0 Locked

    715 views
    2 replies
    Latest over 8 years ago
    by ShreyasRao
  • Suggested Answer

    Asking for the alt solution to replaceTC7SET14FU 0 Locked

    1245 views
    7 replies
    Latest over 8 years ago
    by Clemens Ladisch
  • Answered

    eMMC line driver supporting 200MHz 0 Locked

    1305 views
    4 replies
    Latest over 8 years ago
    by LeonardEllis
  • Answered

    SN74AVC32T245: SN74AVC32T245 data rate and transition rate 0 Locked

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

    TXS0108E: Cpd question 0 Locked

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

    SN74AVC1T45: SN74AVC1T45DRLR 0 Locked

    1064 views
    3 replies
    Latest over 8 years ago
    by Clemens Ladisch
  • Answered

    SN74LV1T125: Several questions 0 Locked

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

    SN74HC86: Series resistance 0 Locked

    1030 views
    3 replies
    Latest over 8 years ago
    by Wayne Bryce
  • Suggested Answer

    SN74LVC4245A: SN74LVC4245A 0 Locked

    989 views
    2 replies
    Latest over 8 years ago
    by ShreyasRao
  • Answered

    TXS0102: Levle shifter I2C compatibility with DM3730 processor 0 Locked

    1505 views
    6 replies
    Latest over 8 years ago
    by Petar Horvatic
  • Answered

    SN7497: Choosing the right frequency dividers for pulsatile inputs at 80 and 160 MHz 0 Locked

    1122 views
    1 reply
    Latest over 8 years ago
    by Michael J Schultis
  • Not Answered

    cd40*** unknown ic problem 0 Locked

    510 views
    1 reply
    Latest over 8 years ago
    by Michael J Schultis
  • Not Answered

    SN74AUP1G74: Hello, I want to use Power-on-switch as Tact SW (Low power module) as below 0 Locked

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

    TXB0106: Level translation for differential encoder signal 0 Locked

    1663 views
    3 replies
    Latest over 8 years ago
    by Clemens Ladisch
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