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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

    SN74HC244-Q1: How to deal with non-used channel 0 Locked

    313 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVCH16T245-EP: Output state During Power Up 0 Locked

    802 views
    3 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74LVC1G08: LVC logic family exceeding absolute min and max input voltages by adhering to 50mA input current limit constraint 0 Locked

    503 views
    7 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74LVC2G07: The input is about -570mv a little larger than the datasheet spec -0.5v, Does it has risks and what's the risks? 0 Locked

    430 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Not Answered

    LSF0204D: I2C level shifting from 3.3V to 5V is not working 0 Locked

    356 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Not Answered

    CD74HC597: How can i use a 74HC597 Shift Register with ARDUINO ? 0 Locked

    828 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AHC08: Duty can be distorted? 0 Locked

    217 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AUC32374: SN74AUC32374ZKER / 74ALVTH32374ZKER P2P device 0 Locked

    391 views
    1 reply
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AHCT1G126: supply current vs. input voltage / level shift 0 Locked

    460 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74HC164: Schematics 0 Locked

    2353 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AHCT1G32: VCC 3.3V critical? 0 Locked

    494 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74AUP1G06: Feeding inverter VCC from logic to minimise quiescent drain 0 Locked

    590 views
    4 replies
    Latest over 5 years ago
    by Edward Matos
  • Answered

    TXS0108E: About Maximum value of Input and Output capacitor 0 Locked

    292 views
    2 replies
    Latest over 5 years ago
    by Hide
  • Not Answered

    LSF0102: LSF0102 is couldn't be assigned as output buffer 0 Locked

    398 views
    3 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74AUP1T97: SN74AUP1T97DRYR Junction temperature question 0 Locked

    416 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74LVTH244A: Maximum operating junction temperature for SN74LVTH244APWR? 0 Locked

    280 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74HC03: SN74HC03 ESD Information 0 Locked

    225 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74LVC126A: SN74LVC126A 0 Locked

    362 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    TXB0304: (Variant TXBN0304) falling edge voltage peaks 0 Locked

    1003 views
    8 replies
    Latest over 5 years ago
    by Jade@lhs
  • Suggested Answer

    SN74AVC16245: Differences between SN74AVC8T245 0 Locked

    354 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
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