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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] 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 6 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 6 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 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What does 'partial power down' or 'Ioff' mean in the datasheet?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The " Ioff " specification in the electrical characteristics table is only in the datasheet of devices that have the special feature of " partial power down " - also known as " back…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Why does my device not switch at VIH or VIL?

    Karan Kotadia
    Karan Kotadia
    Other Parts Discussed in Thread: SN74LVC1G08 FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ What is V IH and V IL ? JEDEC - V IH min is the least positive (most negative) value of high-level input voltage for which operation…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I size pull-up or pull-down resistors?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74AUP1G34 FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ Pull-up and pull-down resistors are required in many logic systems to provide a valid logic state when a wire connected to a CMOS input…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum data rate (or operating frequency) for a logic gate or buffer?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G34 , SN74LVC1G79 FAQ: Logic and Voltage Translation > Timing Parameters >> Current FAQ ** NOTE ** This FAQ is in reference to push-pull output devices. Open-drain outputs will inherently have slower operating…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the output voltage (VOH or VOL) when the output current is X or the supply voltage is Y?

    Karan Kotadia
    Karan Kotadia
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ There are circumstances where you might want to know a VOH or VOL Value that is not given. I will describe two cases: If you want VOH for a supply voltage that is not given (for…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do the LSF translators work?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: LSF0101 , LSF0002 , LSF0102 , LSF0204 , LSF0204D , LSF0108 , LSF0102-Q1 , LSF0204-Q1 , LSF0108-Q1 FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ The LSF family of translators generates more questions…
    • over 6 years ago
    • Logic
    • Logic forum
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  • Answered

    SN74LV123A: Propagation delay (tPLH) 0 Locked

    395 views
    1 reply
    Latest over 4 years ago
    by Chad Crosby
  • Answered

    TXS0104E: Driving current 0 Locked

    342 views
    6 replies
    Latest over 4 years ago
    by Jeff YANG
  • Answered

    SN74LVC245A: 5V application 0 Locked

    336 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G123: Plus width 0 Locked

    306 views
    1 reply
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    SN74LVC1G125: 74LVC1G125DCKRG4 and SN74LVC1G125DCKT 0 Locked

    351 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AVC4T774: What's the difference between SN74AVC4T774RSVR, 74AVC4T774RSVR-NT and 74AVC4T774RSVRG4? 0 Locked

    560 views
    3 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74S244: Logic compatibility 0 Locked

    424 views
    4 replies
    Latest over 4 years ago
    by KEERTHANA S67
  • Answered

    TXB0304EVM: Not functioning properly when OE pulled low 0 Locked

    387 views
    2 replies
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    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G14-Q1: Output state when VCC falls below minimun voltage 0 Locked

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    Latest over 4 years ago
    by Chad Crosby
  • Answered

    SN74AVC4T774: JTAG voltage level transceiver 0 Locked

    976 views
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    Latest over 4 years ago
    by Asaf Abraham
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    SN74LVC1G125-EP: ESD HBM 0 Locked

    426 views
    2 replies
    Latest over 4 years ago
    by Chad Crosby
  • Answered

    SN74AXC1T45: Difference between SN74AXC1T45DCK and SN74AVC1T45DCK 0 Locked

    417 views
    2 replies
    Latest over 4 years ago
    by Ann_Lien
  • Not Answered

    TXS0108E-Q1: Using of TXS0108E-Q1 LVDS signal voltage translator 0 Locked

    286 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC2G07: Max VIH of buffer IC 0 Locked

    350 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74AVC4T774: IBIS model issue 0 Locked

    509 views
    5 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    SN74HC244: what's Vih for VCC=3.3V? 0 Locked

    521 views
    1 reply
    Latest over 4 years ago
    by Dylan Hubbard
  • Answered

    SN74AUC2G34: YZP package pinout 0 Locked

    509 views
    2 replies
    Latest over 4 years ago
    by Jason Petras
  • Answered

    TXB0106-Q1: Is it possible to operate TA=-40~125 degree and do you have electrical characteristics within this operating temperature? 0 Locked

    301 views
    2 replies
    Latest over 4 years ago
    by Yoshiki Ochi
  • Suggested Answer

    TXS0108E-Q1: When does it operate as Open-drain output or push-pull output? 0 Locked

    443 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    Graphics display driver which supports touch-sensitive LCDs and compatible display 0 Locked

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