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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] Why is there a voltage offset at the input of the SN74AXCxTxxx device?

    Dylan Hubbard
    Dylan Hubbard
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ The AXC family of Voltage Translators have built in dynamic pull-downs at the I/O. These pull-downs assist with with the glitch free power sequencing feature included in this…
    • over 3 years ago
    • Logic
    • Logic forum
  • [FAQ] Do I still need pull-up/pull-down resistors with bus-hold circuitry?

    Albert Xu1
    Albert Xu1
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ Short answer: External pull-up/down resistors are not recommended for devices with bus-hold circuitry. Explanation: A pull-up or pull-down resistor will create a voltage-divider…
    • over 3 years ago
    • Logic
    • Logic forum
  • [FAQ] Why are the TXS01xx VIH/VIL specifications so stringent?

    Dylan Hubbard
    Dylan Hubbard
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ TXS family translators utilize a FET-based architecture with an N-channel pass-gate transistor used to open and close the connection between the A-port and B-port. The FET connects…
    • over 3 years ago
    • Logic
    • Logic forum
  • [FAQ] [H] Frequently Asked Questions: Logic and Voltage Translation

    Michael J Schultis
    Michael J Schultis
    Select this link to see answers to common questions, detailed use case implementations, and part recommendations for logic and voltage translation devices. . Top Logic and Voltage Translation FAQs - All-Time How does a slow or floating input affect…
    • Answered
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the typical delay of a logic device in a particular logic family?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Timing Parameters >> Current FAQ Delays vary from device to device, however a general idea of delay can be shown graphically: Two things to note from the above graphic (1) Delay always increases as the supply…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] Where can I get a CAD symbol, soldering footprint, or 3D model for my device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ TI utilizes the Ultra Librarian software to provide symbols, footprints, and 3D models for our devices. In the product folder for your selected device, scroll down and select…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I set up a TI.com device re-stock notification?

    Sebastian Muriel
    Sebastian Muriel
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ 1. Search for the desired device in the TI store . 2. Click on the device and select the Ordering & Quality link. 3. Select the Notify me when available link. 4…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] What are the performance specifications of the HCS logic family at 3.3V operation?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ This question comes up fairly often because the HCS logic family is specified only at 2V, 4.5V, and 6V. The following min / max values are interpolated from the datasheet tables…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I select a bypass capacitor for a CMOS logic device?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G08 , SN74LVC16244A FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ For the short answer - use a 0.1uF for single supply logic devices like the SN74LVC1G08, or a 0.022uF capacitor for each…
    • over 4 years ago
    • Logic
    • Logic forum
  • [FAQ] What's the difference between logic output types (push-pull, open-drain, 3-state)?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Push-Pull Output A push-pull output can source current in the high state or sink current in the low state. In modern CMOS devices, the most common configuration for a push-pull…
    • over 4 years ago
    • Logic
    • Logic forum
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View FAQ threads
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  • Answered

    SN74LVC373A: Is output state knowable during power-up with /OE = L, LE = L, D = H? 0 Locked

    772 views
    2 replies
    Latest over 8 years ago
    by Jonathan Bender
  • Answered

    SN74LVC8T245: Maximum operating Speed of level shifter from 3.3V to 1.8V 0 Locked

    1177 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    SN74AUP1G57: what's the difference between 1t and 1g devices 0 Locked

    940 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74LVC244A: the abs. minimum input negative AC voltage 0 Locked

    741 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74ALVC164245: Preferred package variant 0 Locked

    1362 views
    4 replies
    Latest over 8 years ago
    by Markus Nabecker
  • Answered

    TXB0108: SD card SPI working intermittently - MISO line 0 Locked

    7093 views
    9 replies
    Latest over 8 years ago
    by michel canagasabey
  • Answered

    SN74AVCB324245: What is the difference between the SN74AVCB324245KR and 74AVCB324245ZKER? 0 Locked

    968 views
    1 reply
    Latest over 8 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC1G08: SN74LVC1G08 / VOH and VOL at Vcc=3.3V 0 Locked

    1729 views
    2 replies
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    LSF0108: IBIS simluation model question 0 Locked

    1104 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    TXS0108E: About Vcca and Vccb 0 Locked

    1588 views
    4 replies
    Latest over 8 years ago
    by Nicholas Mariani9
  • Suggested Answer

    LSF0108: waveform distortion 0 Locked

    1193 views
    2 replies
    Latest over 8 years ago
    by ShreyasRao
  • Suggested Answer

    TXB0104: TXB0104 for isolation purpose? 0 Locked

    1070 views
    2 replies
    Latest over 8 years ago
    by Clemens Ladisch
  • Suggested Answer

    TXS0108E: Can TXS0108E push-pull support 100MHz SDIO ? 0 Locked

    1766 views
    3 replies
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    TX517EVM: Generate 400Khz or 800Khz frequncy output with TX517EVM 0 Locked

    1757 views
    4 replies
    Latest over 8 years ago
    by Sajad Rahmdel
  • Answered

    Automotive Quadruple 2-Input Positive-AND Gate with Input Tolerant 0 Locked

    1035 views
    2 replies
    Latest over 8 years ago
    by Kenichiro
  • Answered

    CD4040B: thermal resistance and junction temperature 0 Locked

    1247 views
    4 replies
    Latest over 8 years ago
    by Ricardo Li
  • Answered

    TXS0108E: Any problem if i connect open drain output 0 Locked

    844 views
    2 replies
    Latest over 8 years ago
    by prasanna kumara G
  • Not Answered

    74AC16244: Buffer solution recommend 0 Locked

    656 views
    1 reply
    Latest over 8 years ago
    by Emrys Maier
  • Suggested Answer

    SN74GTL2003: Variable SREF voltage pullup resistor calculations 0 Locked

    1286 views
    6 replies
    Latest over 8 years ago
    by Emrys Maier
  • Answered

    TXS0108E: Excess Power Draw on Vcc 0 Locked

    1329 views
    6 replies
    Latest over 8 years ago
    by Nicholas Mariani9
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