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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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  • Answered

    SN74LVC125A: Does the device support test mode for aging test 0 Locked

    287 views
    1 reply
    Latest over 1 year ago
    by Albert Xu1
  • Answered

    SN74LV125A: we use buffer in STO circuit and this buffer cannot be recognized as a fail-safe part. 0 Locked

    466 views
    2 replies
    Latest over 1 year ago
    by Long Wang
  • Suggested Answer

    SN74AHCT86: SN74AHCT86PWR - drop in alternative 0 Locked

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    1 reply
    Latest over 1 year ago
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  • Answered

    SN7438: What is the ESD rating of this device? 0 Locked

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    1 reply
    Latest over 1 year ago
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  • Answered

    SN74ACT00: Web page recommends SN74AHCT00 0 Locked

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    3 replies
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    by Clemens Ladisch
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    TXS0108E: Is it suitable for SPI application. 0 Locked

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    by Michael Ikwuyum
  • Not Answered

    I'm trying to identify some old TI chips... and cannot find links/references to them. 0 Locked

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    by LeonardEllis
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    PTA Coexistence Interface between BLE and WiFi Chip 0 Locked

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    by Alex Fager
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    SN74LS08: Trouble Pin SN74LS08N 0 Locked

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    SN74AVC4T774: SN74AVC4T774PW 0 Locked

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    SN74LVC2G14: several questions about SN74LVC2G14 0 Locked

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    by Albert Xu1
  • Suggested Answer

    LSF0204: SPMI Compatiblity 0 Locked

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    SN74LVCZ244A: SN74LVCZ244APW 0 Locked

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  • Answered

    SN74LVC2G74: SN74LVC2G74DCUTE4 0 Locked

    287 views
    1 reply
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    by Clemens Ladisch
  • Suggested Answer

    TXS0102: Can TXS0102 support VCCA=VCCB application? 0 Locked

    412 views
    3 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUC1G86: Does this part incorporate the SDR? 0 Locked

    309 views
    2 replies
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    TXS0102: Do you have the Pin to Pin samples without one-shot feature compatible with TXS0102DQER and TXS0102QDCURQ1? Do you have the Pin to Pin samples with higher VIL, such as 0.6V instead of 0.15V? 0 Locked

    482 views
    3 replies
    Latest over 1 year ago
    by Jack Guan
  • Suggested Answer

    SN74HC374: What is the default output logic level of SN74HC374 revision G and A? 0 Locked

    392 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LV541AT: SN74LV541ATRGYR thermal pad 0 Locked

    294 views
    3 replies
    Latest over 1 year ago
    by Tino Böhme
  • Suggested Answer

    TXB0108: Pull-up resistor recommendation 0 Locked

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