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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

    SN74LVC8T245: 5V tolerant or not, when powered by 3.3V? 0 Locked

    539 views
    2 replies
    Latest 11 months ago
    by Thierry BASSET
  • Answered

    SN74AXC2T245: Pin status (B1 and B2) when VCCA is open 0 Locked

    187 views
    1 reply
    Latest 11 months ago
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    SN74LVC1G126: SN74LVC1G126 output pulled up using a different source 0 Locked

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    SN74AVC4T245-Q1: Question about the requirement of input transition rise fall rate 0 Locked

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    CD74ACT245:自動方向検出 0 Locked

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  • Suggested Answer

    SN74AHC132: SN74AHC132PWR 0 Locked

    186 views
    1 reply
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  • Suggested Answer

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  • Suggested Answer

    CD4050B: CD4050B 0 Locked

    229 views
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    369 views
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    Latest 11 months ago
    by Joshua Salinas
  • Answered

    LSF0102: Is there any possibility the Input Voltage from 5V got drawn into the input voltage 3.3V ? 0 Locked

    473 views
    4 replies
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    by Jack Guan
  • Suggested Answer

    SN54LVTH245A-SP: Latch-up SEL information 0 Locked

    226 views
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  • Suggested Answer

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    408 views
    5 replies
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  • Answered

    SN74AUC17: SCHMITT-TRIGGER BUFFER output impedance 0 Locked

    277 views
    4 replies
    Latest 11 months ago
    by Shubham Srivastava
  • Answered

    SN74HC164: About ESD resistance 0 Locked

    273 views
    1 reply
    Latest 11 months ago
    by Owen Westfall
  • Suggested Answer

    TXU0304: data rate when VCCI=VCCO=3.0~3.6V 0 Locked

    199 views
    1 reply
    Latest 11 months ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G97-Q1: SO# 296675 - Customer claiming shipped parts due to wrong plating.... 0 Locked

    225 views
    1 reply
    Latest 11 months ago
    by Clemens Ladisch
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