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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

    SN74LVC245A: Output Voltage Level 0 Locked

    944 views
    8 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74AUC16244: meet bandwidth 533Mbps 0 Locked

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

    TXS0102: looking for replacement solution 0 Locked

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

    SN74LVC1G07: Input Voltage higher than Vcc 0 Locked

    1234 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    TXB0104: Trying to adapt voltage levels for an SDI-12 bus with a 3.3V MCU 0 Locked

    3861 views
    4 replies
    Latest over 5 years ago
    by Nicolas Harel
  • Suggested Answer

    LSF0101: Need Values for Noise Margin Calculation 0 Locked

    639 views
    2 replies
    Latest over 5 years ago
    by Anoop Kumar K V
  • Answered

    SN74LS02: ESD Rating of SN74LS02NSR 0 Locked

    381 views
    2 replies
    Latest over 5 years ago
    by Hajime Shimaya
  • Not Answered

    TXS0108E: SD card interface issue with TXS0108EPWR level translator 0 Locked

    3271 views
    15 replies
    Latest over 5 years ago
    by ShreyasRao
  • Suggested Answer

    SN74HC138: IBIS model for SN74HC138NS, SN74HC139NS 0 Locked

    859 views
    5 replies
    Latest over 5 years ago
    by Chad Crosby
  • Suggested Answer

    SN74AC08: ESD Information 0 Locked

    314 views
    1 reply
    Latest over 5 years ago
    by Chad Crosby
  • Answered

    SN74LVC1T45-EP: Max Load Capacitance 0 Locked

    611 views
    3 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    SN74AVC2T244: Maximum input voltage for /OE if VCCA is 1.8V 0 Locked

    283 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
  • Not Answered

    CD4059A: counter 'freezing' with quickly changing jam inputs (part 2) 0 Locked

    582 views
    6 replies
    Latest over 5 years ago
    by Ryan Sarver1
  • Suggested Answer

    SN74ALVC244: Can SN74ALVC244 used in Hot insertion application 0 Locked

    349 views
    3 replies
    Latest over 5 years ago
    by Chad Crosby
  • Suggested Answer

    SN74AHC245: About the input tolerant function of SN74AHC245. 0 Locked

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

    SN74LVC2G06: Best way to lower V_IH? 0 Locked

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

    SN74LVC1G123: Cext limitation 0 Locked

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

    TXB0104: Inrush current 0 Locked

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

    SN74LVC1G17: Vt+ range 0 Locked

    407 views
    1 reply
    Latest over 5 years ago
    by Chad Crosby
  • Answered

    SN74AXC8T245: SN74AXC8T245RHLR 1.8V IBIS model 0 Locked

    456 views
    4 replies
    Latest over 5 years ago
    by Chad Crosby
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