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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] How can I level shift up to 30 V?

    Michael Ikwuyum
    Michael Ikwuyum
    Other Parts Discussed in Thread: TXH0137D FAQ: Logic and Voltage Translation > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Existing level-shifters typically support up to 18 V. For up to 30 V, see the TXH0137D family highlighted below. …
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] What is the VIH / VIL required for a Schmitt-Trigger device?

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Consider the worst-case values in the electrical characteristics table; VT+(max) and VT−(min) are what matters for VIH and VIL respectively. See Understanding Schmitt…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] How can I choose a high drive strength device?

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Choosing a high drive strength device depends on the below: Static DC drive strength: Drive required for a constant HIGH…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] TXB0304 oscillates but TXB0104 works, why?

    Michael Ikwuyum
    Michael Ikwuyum
    Other Parts Discussed in Thread: TXB0304 , TXB0104 FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters >> Current FAQ The most common reason is due to impedance mismatches. TXB0304 specifies a stronger output impedance than TXB0104…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] How can I mitigate TXB / TXS oscillation concerns?

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters >> Current FAQ To mitigate oscillation concerns with devices with edge rate accelerators / one-shots such as TXB / TXS devices, consider below: Short enough traces for round…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] Can I estimate appropriate dampening resistor value for level-shifter outputs?

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ When in doubt, use a 0 ohm series resistor on the outputs and adjust accordingly, for your system needs. This can also be…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] TXS and LSF devices support Open-Drain and Push-Pull applications. How do I choose Open-Drain or Push-Pull Mode?

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters >> Current FAQ The devices do not choose the mode. The mode is based on the devices connected to the TXS / LSF devices. I.e. These are the two devices that are connected to the…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] How can I estimate Data Rate Frequency not given for my voltage level?

    Michael Ikwuyum
    Michael Ikwuyum
    Other Parts Discussed in Thread: TXV0108-Q1 FAQ: Logic and Voltage Translation > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Data rate depends on the system designers tolerance for various parameters such as VOL / VOH levels, duty cycle distortion…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] Should I use Auto-Bidirectional level-shifters for Fixed directional applications?

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Do not use auto-bidirectional level-shifters if the below is applicable. Use fixed or direction control level-shifters instead…
    • over 1 year ago
    • Logic
    • Logic forum
  • [FAQ] Fixed DIR / DIR CNTRL Level-Shifters

    Michael Ikwuyum
    Michael Ikwuyum
    FAQ: Logic and Voltage Translation > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ [FAQ] Should I use Auto-Bidirectional level-shifters for Fixed directional applications? [FAQ] Can I estimate Data Rate Frequency not given for my voltage level…
    • over 1 year ago
    • Logic
    • Logic forum
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View FAQ threads
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  • Answered

    SN74LVC8T245: SN74LVC8T245PWR 0 Locked

    374 views
    1 reply
    Latest over 6 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74LVC1G04: Gold thickness in NiPdAu terminal plating 0 Locked

    1131 views
    4 replies
    Latest over 6 years ago
    by Karan Kotadia
  • Answered

    SN74HC595: Thermal Resistance 0 Locked

    532 views
    4 replies
    Latest over 6 years ago
    by Adam Walton
  • Suggested Answer

    TXS02612: TXS02612RTWR 0 Locked

    1311 views
    1 reply
    Latest over 6 years ago
    by ShreyasRao
  • Answered

    SN74LVC126A-Q1: Characteristics curve for VCC and Voh 0 Locked

    688 views
    3 replies
    Latest over 6 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC1G125: SN74LVC1G125 Voutput min undershoot spec 0 Locked

    476 views
    1 reply
    Latest over 6 years ago
    by Dylan Hubbard
  • Suggested Answer

    Schematic review 0 Locked

    589 views
    5 replies
    Latest over 6 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC16T245: SN74AHCT126 0 Locked

    3978 views
    12 replies
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    by Karan Kotadia
  • Suggested Answer

    SN74LVC1G14: Some issue about to replacing TC4S584F. 0 Locked

    907 views
    2 replies
    Latest over 6 years ago
    by Karan Kotadia
  • Suggested Answer

    LSF0102: What pull up resistor should be chosen for MDC/MDIO application? 0 Locked

    2207 views
    1 reply
    Latest over 6 years ago
    by Dylan Hubbard
  • Suggested Answer

    TXS0104E: I2C communication 0 Locked

    552 views
    1 reply
    Latest over 6 years ago
    by Karan Kotadia
  • Suggested Answer

    TXS0104E: TXS0104EPWR ROHS and SGS report 0 Locked

    494 views
    3 replies
    Latest over 6 years ago
    by Emrys Maier
  • Suggested Answer

    CD74HCT7046A: Any method to move the demodulation noise to higher freq. 0 Locked

    445 views
    1 reply
    Latest over 6 years ago
    by Emrys Maier
  • Suggested Answer

    SN74V263: When End of Life ? 0 Locked

    403 views
    1 reply
    Latest over 6 years ago
    by Wade Vonbergen
  • Answered

    TXS0102: Any reason why the circuit below wouldn't function? 0 Locked

    1508 views
    2 replies
    Latest over 6 years ago
    by JPAlleyne
  • Not Answered

    [FAQ] What is the default output of a latched device? (Flip-Flop, latch, register) 0 Locked

    8086 views
    0 replies
    Started over 6 years ago
    by Emrys Maier
  • Not Answered

    [FAQ] How does a slow or floating input affect a CMOS device? 0 Locked

    17118 views
    0 replies
    Started over 6 years ago
    by Emrys Maier
  • Suggested Answer

    TXB0304: TXB0304, there is serious reflection showed as attached picture when sending 2MHz clock from TXB0304UTR to xilinx XC3S400AN CPLD through 180mm trace 0 Locked

    989 views
    4 replies
    Latest over 6 years ago
    by ShreyasRao
  • Suggested Answer

    SN7407: SN7407 Cascade Buffer Driving 0 Locked

    553 views
    2 replies
    Latest over 6 years ago
    by Emrys Maier
  • Answered

    SN74LV05A: Absolute Maximum Ratings of Output Voltage Range 0 Locked

    438 views
    1 reply
    Latest over 6 years ago
    by Karan Kotadia
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