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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] Can the input voltage (Vi) to my logic device be higher than the supply voltage (Vcc)?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ This question is really about the input structure of a logic device. There are primarily two types of CMOS input structures - one with a positive clamping diode, and one without…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Where do I connect the thermal pad of the logic QFN devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ Some datasheets do not specify what should be done with the thermal pad, such as in the image below: The thermal pad is recommended to be soldered to the PCB and electrically…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum capacitive load that a logic device can drive?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC2G34 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ There are a few issues with trying to determine a maximum capacitive load for a standard CMOS logic device. First is propagation delay…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Why does a logic device's part number have an E4/G4 suffix?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ In short, there will be no difference between a device labelled SN74xxG4 and SN74xx. Historically, G4 and E4 suffixes meant that the devices were rated to be "Green" or…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the difference between TXS TXB and LSF devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Is part number X pin to pin compatible with part number Y?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ It's extremely common to need to know if one device can be directly replaced with another. With Standard Logic devices, this is generally an easy process. The part number…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the output transition rate for a logic device?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G08 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Very few logic devices specify an output transition rate, and those that do only specify it under very specific conditions. The best…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] Why do the leadframes look strongly oxidized or corroded?

    Karan Kotadia
    Karan Kotadia
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ Texas instruments has decided to change from non-roughened leadframe to single-side roughened leadframe for some of its parts. For this reason these devices look as if they…
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the TXS device internal resistor variation/ tolerance

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ According to the design simulation, the variation of the 10K internal resistor of the TXS device can be between 6.5k to 15kohm across PVT.
    • over 7 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum junction temperature (TJMAX) for a device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ The vast majority of logic devices do not list a maximum junction temperature ( T J(max) ) on the datasheet. For logic devices, T J(max) is equal to the maximum storage temperature…
    • Answered
    • over 7 years ago
    • Logic
    • Logic forum
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View FAQ threads
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  • Answered

    SN74LV139A: Short pulse input 0 Locked

    267 views
    2 replies
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74AUP1G126: Incorrect pspice model? 0 Locked

    448 views
    3 replies
    Latest over 4 years ago
    by Paulo Monteiro
  • Answered

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

    441 views
    2 replies
    Latest over 4 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

    1252 views
    1 reply
    Latest over 4 years ago
    by Emrys Maier
  • Answered

    SN74HC164A: SN74HC164A output current 0 Locked

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

    LSF0108: B channel logic are transistor issue. 0 Locked

    546 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

    9586 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

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

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

    224 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

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

    SN74AVC4T774: Difference between AVC and AVCH level translators 0 Locked

    1121 views
    1 reply
    Latest over 4 years ago
    by Clemens Ladisch
  • Answered

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

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

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

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

    SN74LV1T125: Direct Replacement - Alternate TI parts 0 Locked

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

    SN74HC153: SN74HC153NSR:ESD data request 0 Locked

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

    SN74LV1T34: SN74LV1T34 0 Locked

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

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

    249 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

    561 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

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

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

    363 views
    5 replies
    Latest over 4 years ago
    by Clemens Ladisch
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