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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

    SN54SC6T17-SEP: Single Event Transient Characterization 0 Locked

    272 views
    2 replies
    Latest over 1 year ago
    by Matthew Joplin
  • Not Answered

    TXS0108E: sleep mode work abnormal 0 Locked

    232 views
    2 replies
    Latest over 1 year ago
    by Jack Guan
  • Suggested Answer

    SN74HCS541: Inverting Option? 0 Locked

    211 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Answered

    SN74AVC4T245: SN74AVC4T245RSVR with 1.2V 0 Locked

    241 views
    2 replies
    Latest over 1 year ago
    by Joshua Salinas
  • Answered

    SN74LVC1G32-Q1: Input transition rise/fall time 0 Locked

    342 views
    2 replies
    Latest over 1 year ago
    by Michael Daimer
  • Answered

    SN74LV123A-EP: Please verify operating temperature range. Datasheet says -40 to 105, webpage says -40 to 125. 0 Locked

    219 views
    1 reply
    Latest over 1 year ago
    by Albert Xu1
  • Not Answered

    [FAQ] Which IBIS model should I choose for simulating Auto-Bidirectional Translators (LSF,TXB,TXS) ? 0 Locked

    844 views
    0 replies
    Started over 1 year ago
    by Jack Guan
  • Suggested Answer

    SN74AHC244: Max junction temperature. 0 Locked

    255 views
    3 replies
    Latest over 1 year ago
    by Owen Westfall
  • Answered

    SN74AC32: High-level Input Voltage Specs 0 Locked

    262 views
    3 replies
    Latest over 1 year ago
    by Owen Westfall
  • Answered

    SN74ALS109A: PDIP package lead thickness 0 Locked

    240 views
    2 replies
    Latest over 1 year ago
    by Koji Sakurai
  • Suggested Answer

    SN74LVC1G04: SN74LVC1G08QDCKRQ1 - FMEA documentation and expected interactions when running under suggested temperature range. 0 Locked

    303 views
    4 replies
    Latest over 1 year ago
    by Malcolm Lyn
  • Suggested Answer

    SN74ACT74: SN74ACT74MDREP - Statistical Control Processes 0 Locked

    250 views
    3 replies
    Latest over 1 year ago
    by Owen Westfall
  • Suggested Answer

    SN5406: ESDS Rating for SNJ5406W 0 Locked

    228 views
    1 reply
    Latest over 1 year ago
    by Owen Westfall
  • Suggested Answer

    SN74AHC1G00: What's the output state when VCC is 0 0 Locked

    237 views
    1 reply
    Latest over 1 year ago
    by Owen Westfall
  • Answered

    LSF0204: no RPU 0 Locked

    279 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    TXB0104-Q1: Functional Impact of VCCB Absence with Constant VCCA on Chip 0 Locked

    299 views
    2 replies
    Latest over 1 year ago
    by VISHNU AG
  • Answered

    SN74AXC2T245: External pull-up resistor value 0 Locked

    465 views
    6 replies
    Latest over 1 year ago
    by ken kodaira
  • Answered

    CD74HC4538-Q1: Ask for device CDM ESD classification level 0 Locked

    298 views
    2 replies
    Latest over 1 year ago
    by Takashi Sakato
  • Suggested Answer

    SN74HCS244-Q1: buffer IC layout placement 0 Locked

    421 views
    4 replies
    Latest over 1 year ago
    by Malcolm Lyn
  • Suggested Answer

    TXB0104-Q1: Impact of Delayed Powering of VCCA on Device Functionality 0 Locked

    239 views
    2 replies
    Latest over 1 year ago
    by Jack Guan
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