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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] Can the input voltage (Vi) to my logic device be higher than the supply voltage (Vcc)?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ This question is really about the input structure of a logic device. There are primarily two types of CMOS input structures - one with a positive clamping diode, and one without…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Where do I connect the thermal pad of the logic QFN devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ Some datasheets do not specify what should be done with the thermal pad, such as in the image below: The thermal pad is recommended to be soldered to the PCB and electrically…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum capacitive load that a logic device can drive?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC2G34 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ There are a few issues with trying to determine a maximum capacitive load for a standard CMOS logic device. First is propagation delay…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Why does a logic device's part number have an E4/G4 suffix?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ In short, there will be no difference between a device labelled SN74xxG4 and SN74xx. Historically, G4 and E4 suffixes meant that the devices were rated to be "Green" or…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the difference between TXS TXB and LSF devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Is part number X pin to pin compatible with part number Y?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ It's extremely common to need to know if one device can be directly replaced with another. With Standard Logic devices, this is generally an easy process. The part number…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the output transition rate for a logic device?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G08 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Very few logic devices specify an output transition rate, and those that do only specify it under very specific conditions. The best…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Why do the leadframes look strongly oxidized or corroded?

    Karan Kotadia
    Karan Kotadia
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ Texas instruments has decided to change from non-roughened leadframe to single-side roughened leadframe for some of its parts. For this reason these devices look as if they…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the TXS device internal resistor variation/ tolerance

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ According to the design simulation, the variation of the 10K internal resistor of the TXS device can be between 6.5k to 15kohm across PVT.
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum junction temperature (TJMAX) for a device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ The vast majority of logic devices do not list a maximum junction temperature ( T J(max) ) on the datasheet. For logic devices, T J(max) is equal to the maximum storage temperature…
    • Answered
    • over 7 years ago
    • Logic
    • Logic forum
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View FAQ threads
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  • Answered

    LSF0102-Q1: LSF0102-Q1 0 Locked

    278 views
    1 reply
    Latest over 4 years ago
    by Chad Crosby
  • Suggested Answer

    TXS0102: The max frequency this device can support? 0 Locked

    337 views
    3 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC1T45: SN74LVC1T45 and TXB0108, TXS0102 connection 0 Locked

    657 views
    5 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC8T245: SN74LVC8T245DGVR Latch-up test current 0 Locked

    378 views
    3 replies
    Latest over 4 years ago
    by Rami Mooti1
  • Suggested Answer

    SN74LV1T02: Is the product suitable for Class 2 medical devices? 0 Locked

    336 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    CD4521B: Clarification on datasheet 0 Locked

    1871 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AVC2T244: V_OL spec 0 Locked

    322 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AUP1G125: Datasheet error - LVC vs. AUP 0 Locked

    512 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC1G08: The difference between SN74LVC1G08DRY2 and SN74LVC1G08DRYR 0 Locked

    416 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUCH244: ICC_A / ICC_B currents ? 0 Locked

    309 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Not Answered

    [FAQ] How do I select a bypass capacitor for a CMOS logic device? 0 Locked

    5509 views
    0 replies
    Started over 4 years ago
    by Emrys Maier
  • Suggested Answer

    LMC567: Timing component 0 Locked

    303 views
    1 reply
    Latest over 4 years ago
    by Robert Clifton56
  • Answered

    SN74LVC1G08: Logic part get damaged 0 Locked

    1200 views
    14 replies
    Latest over 4 years ago
    by Tomasz Tatara
  • Suggested Answer

    SN74LVTH125: SN74LVTH125RGY 0 Locked

    748 views
    5 replies
    Latest over 4 years ago
    by Karan Kotadia
  • Answered

    SN74AHCT1G125: Bypass capacitor 0 Locked

    650 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC125A: SPI WIRED COMMUNICATION UPTO 10MHz 0 Locked

    428 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC1G11-Q1: Input voltage higher than the supply voltage 0 Locked

    688 views
    6 replies
    Latest over 4 years ago
    by Ramachandran Sivanehru
  • Suggested Answer

    SN74AVC32T245: SN74AVCxT245 Maximum Data Rates Question 0 Locked

    525 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AVC2T245: SN74AVC2T245RSWR 0 Locked

    637 views
    5 replies
    Latest over 4 years ago
    by Sangeetha Venkiteswaran
  • Answered

    SN74LVC8T245: Proper Voltage Translation Device 0 Locked

    592 views
    5 replies
    Latest over 4 years ago
    by Michael J Schultis
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