TI E2E support forums
TI E2E support forums
  • User
  • Site
  • Search
  • User
  • E2E™ design support >
  • Forums
    • Amplifiers
    • API solutions
    • Audio
    • Clock & timing
    • Data converters
    • DLP® products
    • Interface
    • Isolation
    • Logic
    • Microcontrollers
    • Motor drivers
    • Power management
    • Processors
    • RF & microwave
    • Sensors
    • Site support
    • Switches & multiplexers
    • Tools
    • Wireless connectivity
    • Archived forums
    • Archived groups
  • Technical articles
  • TI training
    • Tech days
    • Online training
    • Live events
    • Power Supply Design Seminar
  • Getting started
  • 简体中文
  • More
  • Cancel
Logic

Logic

Logic forum

  • Mentions
  • Tags
  • More
  • Cancel
  • Ask a new question
  • Ask a new question
  • Cancel
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] How does a monostable multivibrator (one shot) work?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ The above functional block diagram shows generally how a monostable multivibrator (MMV, or one-shot) works. Not all of them have every part shown, but this is the most common…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] What's the difference between TTL and 5V CMOS logic?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ It's very common for people to refer to "TTL logic" and to actually mean "5V logic" -- but how are they different? The key difference is in the input and output voltages. This graphic…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the difference in timing between gates in the same device? How much skew is expected within a given logic device? What is the part-to-part skew?

    Karan Kotadia
    Karan Kotadia
    FAQ: Logic and Voltage Translation > Timing Parameters >> Current FAQ The difference in delay between the individual channels on an individual part is referred to as channel-to-channel skew or output skew. This is typically not covered as a datasheet…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the difference between the SN74HCxx and the SN74HCxxA?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN7400 , SN74LS00 FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The High-speed CMOS (HC) logic family was created as a direct replacement for older bipolar junction transistor based transistor…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What method is best used for estimating specification values between those given in the datasheet?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ The most common example of this question comes from the fact that Standard Logic devices are specified at 1.65V, 3V, and 4.5V, however most engineers use our devices at 1.8V, 3.3V…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] When will TI End of Life (EOL) or Obsolete a certain logic device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ TI's General Quality Guideline (page 7) describes our official policy on obsoleting a device. This policy is summarized below. TI's Product withdrawal/discontinuance process…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What are the power sequencing requirements for the translation device?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ Some of the TI translators have requirements during normal operation mode to have Vcca <= Vccb ( TXS/ TXB01xx) or Vrefb>= VrefA+0.8V(LSF). However, the TI translation devices do…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the difference between IOFF and VCC isolation? What are the conditions to guarantee it?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The I OFF specification guarantees the I/O ports are in high impedance whenever either one of the power supply is at pulled to ground (0V) or close to gnd(<100mV as specified for the…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What should be done with unused I/O pins of the level translator devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ For the TXB family, unused I/O ports are recommended to be tied to GND through a weak pulldown resistors (>=100kohm). For TXS devices, the internal 10kohm pull-ups resistors will…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Why is there no PSpice model for a Monostable Multivibrator device?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ To make a long post short: MMVs cannot be directly simulated by PSpice because of their direct dependence on external components…
    • over 6 years ago
    • Logic
    • Logic forum
<>

View FAQ threads
  • Tags
  • RSS
  • More
  • Cancel
  • Answered

    SN74LVC2T45: Input transition rise or fall rate 0 Locked

    1384 views
    2 replies
    Latest over 5 years ago
    by Yusuke Mukuno
  • Answered

    SN74LVC257A: A_L/B direction line floating 0 Locked

    360 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    Drop in Replacement 0 Locked

    351 views
    3 replies
    Latest over 5 years ago
    by Hao Z
  • Suggested Answer

    SN74LVT16244B: Could you please help double check the risks of the negative -450mv? 0 Locked

    449 views
    8 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Suggested Answer

    LSF0204: When using LSF0204 for SPI interface(3.3<->5V), must it pull up? 0 Locked

    1004 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC2T45-Q1: Hardware review 0 Locked

    610 views
    5 replies
    Latest over 5 years ago
    by Manuel Chavez
  • Suggested Answer

    CD74HC112: 3 base frequency output risk 0 Locked

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

    TXB0104-Q1: How to deal with the unused input of TXB0104-Q1 0 Locked

    658 views
    2 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    TXS0102: Voltage-drops across the pass-gate transistor 0 Locked

    932 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    SN74LVC374A-Q1: ESD Rating 0 Locked

    473 views
    3 replies
    Latest over 5 years ago
    by Karan Kotadia
  • Suggested Answer

    SN74LVC1GU04: HSPICE simulation license error saying "TI" feature doesn't exist. 0 Locked

    802 views
    1 reply
    Latest over 5 years ago
    by Karan Kotadia
  • Answered

    TXS0102: TXS0102 0 Locked

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

    SN74AVCH20T245: Unused/undriven pin 0 Locked

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

    Monostable Multivibrator operation for constant excitation voltage 0 Locked

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

    SN74LVC1G04: land pattern 0 Locked

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

    TXS0104E: TXS0108E Connect TXS0104E Problem 0 Locked

    587 views
    4 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74HC14-Q1: Temp and design effect to the VT value of SN74HC14-Q1 0 Locked

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

    LSF0204: driving too strong? 0 Locked

    566 views
    3 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74HC595: what's shift registers and storage registers? 0 Locked

    1249 views
    3 replies
    Latest over 5 years ago
    by Clemens Ladisch
  • Answered

    SN74LVC4245A: Connection of DIR and OE pin 0 Locked

    445 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
<>