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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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