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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] Is it necessary to have pull-down( or pullup) resistor on the OE pin or can I connect it directly to TXS/ TXB supply?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ The OE ( output enable) is over voltage tolerant, high input impedance, active high enable pin for most of the TXS, TXB devices. If the IOs must be in high impedance during power…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] Can I connect the OE pin to Vccb supply pin instead of Vcca for TXS, TXB devices?

    ShreyasRao
    ShreyasRao
    FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ The OE ( output enable) is active high CMOS high input impedance pin for most of the TXS and TXB devices. The OE is referenced to Vcca supply w.r.t the voltage levels. i.e The Vih…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum output pulse length for a monostable multivibrator?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ There is no official maximum output pulse length for a monostable multivibrator device, but there are practical limits. The…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] How stable is the output pulse length of a monostable multivibrator across changes in supply voltage?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ This plot is from the SN74LVC1G123 datasheet. You can see that the "K" value decreases as the supply increases, but it also…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] How stable is the output pulse length of a monostable multivibrator across temperature?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ The application report Designing with the SN74LVC1G123 Monostable Multivibrator has some useful information regarding this. Essentially, the timing is primarily determined…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I configure a monostable multivibrator's inputs for rising/falling edge triggering?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ Logic function table for the SN74LVC1G123 Most monostable multivibrator (MMV) devices have very similar logic tables to…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] With Open-Drain outputs, can I ...use them to shift a logic voltage level? ...connect the outputs directly together? ...force a voltage node to zero?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G123 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ The answer to all three questions is "yes" - these are the three primary uses of open-drain outputs on logic devices. Much of this also…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] Can I connect the Cext pin to ground on a monostable multivibrator?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LV221A , SN74LVC1G123 , SN74LV123A , SN74221 , SN74LS221 FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ For the majority of MMV devices, y es, the Cext pin can be grounded. The Cext…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] How do you determine the output pulse width and the 'K' value for a monostable multivibrator?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ The output pulse width (tw) is determined with the following equation: tw = K * R * C with R := external timing resistor, C := external timing capacitor, K := timing constant…
    • over 5 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I terminate an unused channel of a monostable multivibrator (one shot)?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LV221A FAQ: Logic and Voltage Translation > Monostable Multivibrators >> Current FAQ Unused channels for a logic monostable multivibrator (MMV) such as the SN74LV221A should be terminated such that: (1) All inputs…
    • over 5 years ago
    • Logic
    • Logic forum
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  • Answered

    TXB0104: TXB0104 0 Locked

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

    SN74AVC4T774: DIR pin/s floating 0 Locked

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

    SN74AUP1G32: VOH and VOL with 3.3V supply and 500uA load 0 Locked

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

    Need AMI Simulation models for LMX2594RHAR part 0 Locked

    479 views
    5 replies
    Latest over 5 years ago
    by Noel Fung
  • Suggested Answer

    SN74LVC2G241: Dual Buffer 0 Locked

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

    any new logic family for replace NXP 74LVC series? 0 Locked

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

    TXB0104: What is the different for TXB0104 and TXS0104? 0 Locked

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

    SN74AHC1G08: Orderable number difference 0 Locked

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

    SN74AVC2T45-Q1: Is this part AEC-Q100 or AEC-Q200 qualified 0 Locked

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

    SN74AVC4T774: DIR setting requirements and 3-state I/O interface. 0 Locked

    887 views
    11 replies
    Latest over 5 years ago
    by Rongpeng Zhai
  • Answered

    SN74LVC2G17: Thermal resistance data required 0 Locked

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

    SN74AHC14: 40M 5V input signal to 3.3V output, Schmitt-trigger device recommentdation 0 Locked

    586 views
    2 replies
    Latest over 5 years ago
    by Dylan Hubbard
  • Answered

    SN74LVC4245A: CAN use as 3.3V to 5v converter 0 Locked

    2141 views
    2 replies
    Latest over 5 years ago
    by Monisha om
  • Suggested Answer

    SN74121: Logic High Level 0 Locked

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

    TXB0106: txb0106 0 Locked

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

    TXS02324: I2C pins for other input pins 0 Locked

    459 views
    4 replies
    Latest over 5 years ago
    by Hapidz Daulah Nurisman
  • Suggested Answer

    SN74GTL2010: What is the spec of VIL and VIH for SN74GTL2010PW 0 Locked

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

    LSF0108: Output distortion 0 Locked

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

    SN74AHC14: Input threshold voltage limit (min and max) w.r.t. ambient temperature 0 Locked

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

    SN74LVC1G32: Use sn74LVC1G32 as a clock buffer 0 Locked

    938 views
    1 reply
    Latest over 5 years ago
    by Clemens Ladisch
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