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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

    SN74VMEH22501A: undershoot for around 10ns 0 Locked

    660 views
    5 replies
    Latest over 3 years ago
    by Sebastian Muriel
  • Suggested Answer

    TXB0106-Q1: replacement solution 0 Locked

    389 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
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    SN74LVC8T245: SN74LVC8T245DBR in RGMII Application 0 Locked

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    Latest over 3 years ago
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    Bus hold circuit review 0 Locked

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    SN74AVC8T245: Short propagation delay time 0 Locked

    658 views
    4 replies
    Latest over 3 years ago
    by Dylan Hubbard
  • Not Answered

    Level Translator reccomendation 0 Locked

    166 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
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    SN74AVC16244: What is the technology family mean 0 Locked

    697 views
    3 replies
    Latest over 3 years ago
    by Clemens Ladisch
  • Suggested Answer

    LSF0108: Some design question for LSF0108 0 Locked

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  • Suggested Answer

    LSF0108: LSF0108RKSR series model selection 0 Locked

    1069 views
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    Latest over 3 years ago
    by Karan Kotadia
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    SN74LVC1G18: Leakage 0 Locked

    289 views
    1 reply
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    by Emrys Maier
  • Not Answered

    LSF0204: LSF0204 tsk data 0 Locked

    337 views
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    SN74LVTH16244A: Hot swap application consult 0 Locked

    244 views
    1 reply
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    by Clemens Ladisch
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    SN74HC595: /OE Pin Pull-up Resistor 0 Locked

    514 views
    1 reply
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    by Clemens Ladisch
  • Suggested Answer

    SN74LVC1G17: SN74LVC1G17DCKR, Differences within parts 0 Locked

    537 views
    6 replies
    Latest over 3 years ago
    by Emrys Maier
  • Answered

    SN74AVC16T245-Q1: channel to channel delay for the level translator. 0 Locked

    405 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC1G08: logic 0 Locked

    363 views
    2 replies
    Latest over 3 years ago
    by Nini Zhong
  • Answered

    LSF0108: Issue with low level voltage 0 Locked

    380 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC2T45: SN74LVC2T45 power up sequencing 0 Locked

    398 views
    2 replies
    Latest over 3 years ago
    by Dylan Hubbard
  • Answered

    SN74HCT04A: Difference in specifications 0 Locked

    291 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
  • Answered

    SN74AUCH16374: Difference between SN74AUCH16374 and SN74AUC16374 0 Locked

    260 views
    1 reply
    Latest over 3 years ago
    by Clemens Ladisch
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