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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] What method is best used for estimating specification values between those given in the datasheet?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ The most common example of this question comes from the fact that Standard Logic devices are specified at 1.65V, 3V, and 4.5V, however most engineers use our devices at 1.8V, 3.3V…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] When will TI End of Life (EOL) or Obsolete a certain logic device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ TI's General Quality Guideline (page 7) describes our official policy on obsoleting a device. This policy is summarized below. TI's Product withdrawal/discontinuance process…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What are the power sequencing requirements for the translation device?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ Some of the TI translators have requirements during normal operation mode to have Vcca <= Vccb ( TXS/ TXB01xx) or Vrefb>= VrefA+0.8V(LSF). However, the TI translation devices do…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the difference between IOFF and VCC isolation? What are the conditions to guarantee it?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The I OFF specification guarantees the I/O ports are in high impedance whenever either one of the power supply is at pulled to ground (0V) or close to gnd(<100mV as specified for the…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What should be done with unused I/O pins of the level translator devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ For the TXB family, unused I/O ports are recommended to be tied to GND through a weak pulldown resistors (>=100kohm). For TXS devices, the internal 10kohm pull-ups resistors will…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Why is there no PSpice model for a Monostable Multivibrator device?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ To make a long post short: MMVs cannot be directly simulated by PSpice because of their direct dependence on external components…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Difference between Multiplexer/De-multiplexer and Analog Switch

    Hari T O0
    Hari T O0
    Other Parts Discussed in Thread: TS5A3159-Q1 , TMUX1209 FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ Hi Team, May I know difference is there between mux/demux IC's and analog switch IC's? I'm comparing this in the context…
    • Answered
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I determine the output voltage (VOH, VOL) or output current (IOH, IOL) of a CMOS logic device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ The high logic level output voltage of a logic device with no load will be the supply voltage. The output current of a logic device is determined by the load connected to the device…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What happens when I connect a logic device's output to a 50 ohm transmission line?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Transmission lines cause a lot of confusion for engineers. I hope to clear up some of that here. I will break this up into a few sections, so if you already know something you can…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Can I connect two outputs from a CMOS logic device together directly?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ **** It's important to note that this FAQ is in reference to CMOS devices. Bipolar devices should not be paralleled in this fashion. **** The primary concern with connecting outputs…
    • over 7 years ago
    • Logic
    • Logic forum
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  • Not Answered

    [FAQ] Frequently Asked Questions: TPLD 0 Locked

    2105 views
    0 replies
    Started 10 months ago
    by Malcolm Lyn
  • Answered

    [FAQ] [H] Frequently Asked Questions: Logic and Voltage Translation 0 Locked

    41588 views
    1 reply
    Latest over 4 years ago
    by Michael J Schultis
  • Suggested Answer

    SN74AVC4T245: Sleep Current issue 74AVC4T245PW 0

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    13 replies
    Latest 5 minutes ago
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    SN74LVC1G11: Need automotive alternate parts. 0

    6 views
    0 replies
    Started 46 minutes ago
    by Mohan B
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    TDA4VH-Q1: TIDL Node Initialization Issue with MiDaS ONNX Model 0

    96 views
    4 replies
    Latest 1 hour ago
    by Akshay S
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    SN74AXC2T245-Q1: SN74AXC2T245-Q1 - Schematic Review 0

    2 views
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    Started 1 hour ago
    by ABDUL RAHUMAN
  • Not Answered

    SN74HC86-Q1: Wire bond coating 0

    3 views
    0 replies
    Started 4 hours ago
    by Ryo Jomori
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    TXS0102: ComponentDataSheet 0

    83 views
    4 replies
    Latest 5 hours ago
    by mie koyama
  • Not Answered

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    3 views
    0 replies
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    by Ajinath kasabe
  • Suggested Answer

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    5 views
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  • Suggested Answer

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    10 views
    1 reply
    Latest 8 hours ago
    by Albert Xu1
  • Suggested Answer

    TXS0102: background of Rev. I to Rev. J ( The reason of updated the numbering format for tables, figures, and cross-references throughout the document) 0

    19 views
    2 replies
    Latest 11 hours ago
    by Shinichi Inoue
  • Suggested Answer

    SN74LVC2T45: Absolute maximum rating of VI and VO 0

    13 views
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    Latest 12 hours ago
    by Shuhei Goto
  • Not Answered

    UCC28C44: Vdd voltages above 20v 0

    43 views
    3 replies
    Latest 14 hours ago
    by Adhvaidh Aravind
  • Suggested Answer

    TMUX4827: High-speed switching between 2 negative voltages 0

    9 views
    2 replies
    Latest 14 hours ago
    by Tzafrir Ossovitzki
  • Suggested Answer

    SN74LVC16373A: Query regarding SN74LVC16373ADLR 0

    45 views
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    Latest 18 hours ago
    by Malcolm Lyn
  • Suggested Answer

    SN74HCT273: SN74HCT273PWR pin definition clarification 0

    89 views
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  • Not Answered

    TXB0104: Ground Pin Connect Via 220Ohm on TXB0104RGYR 0

    43 views
    1 reply
    Latest 19 hours ago
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  • Suggested Answer

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