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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

    SN74LVC1G08: How to Ensure Logic High Glitch Free Power Up 0 Locked

    127 views
    2 replies
    Latest 2 months ago
    by Gregory Dieffenderfer
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    TPUL2G123: Pulse generator IC < 10nS 0 Locked

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    SN74AXCH2T45: SN74AXCH2T45DCUR 0 Locked

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    Latest 2 months ago
    by Joshua Salinas
  • Answered

    SN74HCS153-Q1: SN74HCS153QWBQBRQ1 0 Locked

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    Latest 2 months ago
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  • Suggested Answer

    SN74LVC1G17: Recommendation for fixed hysteresis device 0 Locked

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    by Malcolm Lyn
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    SN74AHC1G00: wrong VIH threshold 0 Locked

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  • Answered

    SN74AHC244-Q1: Does the SN74AHC244-Q1 share the same die as the SN54AHC244W? 0 Locked

    76 views
    1 reply
    Latest 2 months ago
    by Malcolm Lyn
  • Suggested Answer

    SN74LVC1G17: SN74LVC1G17QDCKRq1 0 Locked

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    85 views
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    SN54AHCT08: 5962-9682101Q2A Questions 0 Locked

    39 views
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    Started 2 months ago
    by Cindy Wang
  • Suggested Answer

    SN74LVC2T45: SN74LVC2T45DCTR and SN74LVC2T45DCTRE4: Plating Heated after Deposition | Tin thickness (microns) | Process 0 Locked

    118 views
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    SN74HCS594: Difference to SN74HCS595 0 Locked

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    by Dharmesh Joshi
  • Suggested Answer

    SN74AHC14Q-Q1: SN74AHC14QPWRG4HE 0 Locked

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  • Answered

    SN74AUC1G14: SN74AUC1G14 0 Locked

    463 views
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    by Rajan Bedi
  • Suggested Answer

    SN74LVC1G34: SN74LVC1G34 powered by 3.3V supply with 1.8V input signal 0 Locked

    119 views
    2 replies
    Latest 2 months ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC541A: Regarding Tstg 0 Locked

    98 views
    2 replies
    Latest 2 months ago
    by Daisuke Higa
  • Suggested Answer

    SN74LVC3G17: SN74LVC3G17DCUR - Availability of Automotive / EP Grade 0 Locked

    82 views
    1 reply
    Latest 2 months ago
    by Michael Marinello
  • Suggested Answer

    SN74AXC8T245: SN74AXC8T245 and SN74AXC2T245 support for 1V2 to 1V8 in 1000Mbps GMII Interface 0 Locked

    175 views
    7 replies
    Latest 2 months ago
    by Jack Guan
  • Not Answered

    LSF0102: Request for Pin-Compatible Level Translator with Internal Pull-ups for LSF0102DQER 0 Locked

    78 views
    1 reply
    Latest 2 months ago
    by Joshua Salinas
  • Suggested Answer

    SN74HCS541: Inquiry on input/output voltage levels 0 Locked

    60 views
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