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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

    SN74LVC541A: Is 5V on Vcc ok for part? 0 Locked

    424 views
    2 replies
    Latest over 3 years ago
    by Edmond Ng
  • Suggested Answer

    SN74AHCT1G125: We cannot process your order at this time due to corporate policy restriction CP1 - WHY? 0 Locked

    1218 views
    1 reply
    Latest over 3 years ago
    by Emrys Maier
  • Answered

    SN74HC164A: SN74HC164A output current 0 Locked

    477 views
    8 replies
    Latest over 3 years ago
    by Emrys Maier
  • Suggested Answer

    LSF0108: B channel logic are transistor issue. 0 Locked

    542 views
    15 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    [FAQ] Are there voltage level translation / level shifter device recommendations for the industry standard interfaces like GPIO, SPI, UART, I2C, MDIO, RGMII, I2S etc? 0 Locked

    9435 views
    1 reply
    Latest over 4 years ago
    by Michael J Schultis
  • Not Answered

    SMV512K32-SP: Radiation Performance: TID Immunity > 3e5 rad (Si) 0 Locked

    348 views
    3 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74AC04-EP: ESD-HBM of SN74AC04-EP 0 Locked

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

    SN74HC08: About the Vcc and High-Level and Low-level voltage of SN74HC08 0 Locked

    601 views
    2 replies
    Latest over 4 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AVC4T774: Difference between AVC and AVCH level translators 0 Locked

    1096 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

    74ACT11244: Termination resistance requirement? (Thumb rule) 0 Locked

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

    CD4013B: Do CD4013B not the same as 74HCS72,74HCS74 ? 0 Locked

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

    SN74LV1T125: Direct Replacement - Alternate TI parts 0 Locked

    471 views
    4 replies
    Latest over 4 years ago
    by Jayson Molinar
  • Not Answered

    SN74HC153: SN74HC153NSR:ESD data request 0 Locked

    213 views
    1 reply
    Latest over 4 years ago
    by yutaro hayashi
  • Suggested Answer

    SN74LV1T34: SN74LV1T34 0 Locked

    879 views
    8 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    TXS0102: A1/B1 port IN/OUT issue 0 Locked

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

    SN74LVC14A: On the use of the product SN74LVC14A in 24MHz crystal oscillator 0 Locked

    553 views
    2 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    SN74HCS594-Q1: Need the device sample code to help customer develop the system 0 Locked

    366 views
    3 replies
    Latest over 4 years ago
    by Emrys Maier
  • Suggested Answer

    TXS0102: How can this device detect input drive type 0 Locked

    358 views
    5 replies
    Latest over 4 years ago
    by Clemens Ladisch
  • Suggested Answer

    Level shift, 2chanel TI recommendation 0 Locked

    174 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AXC8T245: Unused I/O's of SN74AXC8T245 0 Locked

    311 views
    3 replies
    Latest over 4 years ago
    by Emrys Maier
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