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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] Difference between Multiplexer/De-multiplexer and Analog Switch

    Hari T O0
    Hari T O0
    Other Parts Discussed in Thread: TS5A3159-Q1 , TMUX1209 FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ Hi Team, May I know difference is there between mux/demux IC's and analog switch IC's? I'm comparing this in the context…
    • Answered
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I determine the output voltage (VOH, VOL) or output current (IOH, IOL) of a CMOS logic device?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ The high logic level output voltage of a logic device with no load will be the supply voltage. The output current of a logic device is determined by the load connected to the device…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What happens when I connect a logic device's output to a 50 ohm transmission line?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ Transmission lines cause a lot of confusion for engineers. I hope to clear up some of that here. I will break this up into a few sections, so if you already know something you can…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Can I connect two outputs from a CMOS logic device together directly?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ **** It's important to note that this FAQ is in reference to CMOS devices. Bipolar devices should not be paralleled in this fashion. **** The primary concern with connecting outputs…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What does 'partial power down' or 'Ioff' mean in the datasheet?

    Emrys Maier
    Emrys Maier
    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The " Ioff " specification in the electrical characteristics table is only in the datasheet of devices that have the special feature of " partial power down " - also known as " back…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] Why does my device not switch at VIH or VIL?

    Karan Kotadia
    Karan Kotadia
    Other Parts Discussed in Thread: SN74LVC1G08 FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ What is V IH and V IL ? JEDEC - V IH min is the least positive (most negative) value of high-level input voltage for which operation…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do I size pull-up or pull-down resistors?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74AUP1G34 FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ Pull-up and pull-down resistors are required in many logic systems to provide a valid logic state when a wire connected to a CMOS input…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the maximum data rate (or operating frequency) for a logic gate or buffer?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: SN74LVC1G34 , SN74LVC1G79 FAQ: Logic and Voltage Translation > Timing Parameters >> Current FAQ ** NOTE ** This FAQ is in reference to push-pull output devices. Open-drain outputs will inherently have slower operating…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] What is the output voltage (VOH or VOL) when the output current is X or the supply voltage is Y?

    Karan Kotadia
    Karan Kotadia
    FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ There are circumstances where you might want to know a VOH or VOL Value that is not given. I will describe two cases: If you want VOH for a supply voltage that is not given (for…
    • over 6 years ago
    • Logic
    • Logic forum
  • [FAQ] How do the LSF translators work?

    Emrys Maier
    Emrys Maier
    Other Parts Discussed in Thread: LSF0101 , LSF0002 , LSF0102 , LSF0204 , LSF0204D , LSF0108 , LSF0102-Q1 , LSF0204-Q1 , LSF0108-Q1 FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ The LSF family of translators generates more questions…
    • over 6 years ago
    • Logic
    • Logic forum
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  • Answered

    SN74AVC8T245-Q1: Data Sheet page 3, 'Pin Functions' Table DIR pin for a TSSOP 0 Locked

    289 views
    1 reply
    Latest over 2 years ago
    by Jack Guan
  • Suggested Answer

    SN74HC365: Input voltage specifications 0 Locked

    249 views
    1 reply
    Latest over 2 years ago
    by Emrys Maier
  • Answered

    SN74AXC4T774: output to output skew 0 Locked

    260 views
    1 reply
    Latest over 2 years ago
    by Jack Guan
  • Answered

    TXB0106: Will the higher port voltage damage the TXB0106RGYR 0 Locked

    340 views
    4 replies
    Latest over 2 years ago
    by Webber Chang
  • Answered

    TXB0104: TXB0104QPWRQ1 DATA TRANSFER PROBLEM 0 Locked

    620 views
    6 replies
    Latest over 2 years ago
    by Lai Hai
  • Answered

    SN74LV14A: About latch-up operation 0 Locked

    399 views
    2 replies
    Latest over 2 years ago
    by Ryu Yamashita
  • Answered

    SN74LVC245A: About FIT for SN29500 standard 0 Locked

    451 views
    2 replies
    Latest over 2 years ago
    by Ryu Yamashita
  • Suggested Answer

    SN74HCT04: SN74HCT04 0 Locked

    420 views
    5 replies
    Latest over 2 years ago
    by Chi Nguyen1
  • Suggested Answer

    TXU0202: TXU0202 0 Locked

    286 views
    1 reply
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    by Jack Guan
  • Answered

    SN74LVCH16T245: Support for Camlink Receiver IC Output voltage translation 0 Locked

    408 views
    6 replies
    Latest over 2 years ago
    by SVJS
  • Suggested Answer

    SN74HCS05: Questions of Input capacitance / Power dissipation capacitance 0 Locked

    387 views
    2 replies
    Latest over 2 years ago
    by Owen Westfall
  • Answered

    SN74LVC16T245: DL package pin configuration 0 Locked

    344 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74HC164: survey Shift Registers 0 Locked

    316 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LV123A: clamping diode for output discharge 0 Locked

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

    SN74LVC8T245: data pulse duration 0 Locked

    408 views
    1 reply
    Latest over 2 years ago
    by Jack Guan
  • Suggested Answer

    TXB0104-Q1: Can TXB0104-Q1 output connect with SN3257 for 16MHz SPI clock signal 0 Locked

    531 views
    7 replies
    Latest over 2 years ago
    by Rami Mooti1
  • Answered

    SN74LVC1G04: Maximum Speed of SN74LVC1G04 0 Locked

    240 views
    1 reply
    Latest over 2 years ago
    by Emrys Maier
  • Answered

    LSF0102-Q1: Flexible voltage translation 0 Locked

    469 views
    2 replies
    Latest over 2 years ago
    by Mahesh Chandrashekaraiah
  • Suggested Answer

    SN74AHC74: Need some recommendations 0 Locked

    248 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
  • Suggested Answer

    SN74LVC3G14: SN74LVC3G14 buffer 0 Locked

    294 views
    1 reply
    Latest over 2 years ago
    by Clemens Ladisch
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