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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

    SN74AUP1G08: lower power alternative? 0 Locked

    266 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Answered

    SN74AUCH16374: Question about flip-flop with VLT 0 Locked

    366 views
    4 replies
    Latest over 3 years ago
    by Michael J Schultis
  • Answered

    SN74LVC1G126-Q1: About voltage application to input terminal when VCC = 0V 0 Locked

    366 views
    2 replies
    Latest over 3 years ago
    by Michael J Schultis
  • Answered

    SN74AHCT541: SN74AHCT541 high level output current 0 Locked

    340 views
    5 replies
    Latest over 3 years ago
    by Michael J Schultis
  • Answered

    SN74LV123A: max propagation delay 0 Locked

    299 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Suggested Answer

    CD74HC423: ESD Information 0 Locked

    363 views
    3 replies
    Latest over 3 years ago
    by Albert Xu1
  • Suggested Answer

    SN74LVC00A-EP: ESD information 0 Locked

    316 views
    3 replies
    Latest over 3 years ago
    by Albert Xu1
  • Suggested Answer

    SN74AHCT1G14: ESD information 0 Locked

    273 views
    1 reply
    Latest over 3 years ago
    by Albert Xu1
  • Not Answered

    CD74HC74: ESD Information 0 Locked

    247 views
    2 replies
    Latest over 3 years ago
    by Cedrick
  • Suggested Answer

    SN74AHCT1G125: Short between Pins 3 and 4 0 Locked

    377 views
    4 replies
    Latest over 3 years ago
    by Eric Kneisler
  • Suggested Answer

    SN74LVC16244A: what is the max work frequency or recommend frequency? 0 Locked

    321 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G07: Power Dissipation 0 Locked

    984 views
    5 replies
    Latest over 3 years ago
    by Clemens Ladisch
  • Answered

    TXS0104E-Q1: Propagation delay time (high to low), from B (input) to A (output) Open-drain driving 0 Locked

    436 views
    2 replies
    Latest over 3 years ago
    by Shiraz Macuff
  • Suggested Answer

    SN74LVC1G11-EP: Thermal Resistance 0 Locked

    266 views
    3 replies
    Latest over 3 years ago
    by Albert Xu1
  • Answered

    TXB0304: pin to pin with PI4ULS3V304AZMAEX 0 Locked

    315 views
    2 replies
    Latest over 3 years ago
    by Dylan Hubbard
  • Suggested Answer

    TXS0108E: Is this device suitable for SPI and I2C 0 Locked

    976 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Not Answered

    SN74LVC3G06: Logic forum 0 Locked

    193 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Discussion

    SN74LVC1G00: SN74LVC1G00DCKR: Please provide the reflow profile graph Locked

    904 views
    1 reply
    Latest over 3 years ago
    by Emrys Maier
  • Answered

    SN74LVC1G38: SN74LVC1G38DBVR: Please provide the Reflow profile graph 0 Locked

    1262 views
    3 replies
    Latest over 3 years ago
    by Clemens Ladisch
  • Suggested Answer

    TXB0108: Failed to translate up to 10Mhz signal 0 Locked

    231 views
    1 reply
    Latest over 3 years ago
    by Dylan Hubbard
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