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Showing 5 results View by: Thread Post Sort by
    Answered
  • CD54HC4538: Output state for (Rn=H,A=L,Bn=H) not given in truth table

    stevenh
    stevenh
    Resolved
    Other Parts Discussed in Thread: CD74HC4538 , CD54HC4538 Hello, Please see CD54HC4538 truth table below and datasheet located at www.ti.com/.../cd74hc4538.pdf. What is the Q and Qn for the following input conditions. Rn A Bn Q Qn H L H ? ? …
    • Resolved
    • over 9 years ago
    • Logic
    • Logic forum
  • Termination for 74LS279A unused set and reset input and CD54HC4538 usused 2Cx and 2RxCx inputs

    stevenh
    stevenh
    Other Parts Discussed in Thread: CD54HC4538 Hello, According to the CD54HC4538 datasheet, unused A and B_N inputs should be tied high and low respectively. What should the unused 2Cx and 2RxCx inputs be tied to? Can they be left open? Also, is it…
    • over 11 years ago
    • Logic
    • Logic forum
  • RE: CD74HC4538: Latch-up from EMP?

    Emrys Maier
    Emrys Maier
    Hi Jim, The CD74HC4538E is not hardened against radiation or other interference. If you'd like a device that is designed to work in extreme environments, consider our military line of devices, such as the CD54HC4538. I would have to talk with our high…
    • over 8 years ago
    • Logic
    • Logic forum
  • RE: SN74LVC1G123: rising/falling edge detector reliability problem

    Wesley Newton
    Wesley Newton
    Hi Emrys Thanks for the information. I actually did see the recommendation for the 51Ω resistor for other devices but I could not find anything in the datasheet that it applies specifically to our used device. Our capacitor used was 1uF, so I can definitely…
    • over 9 years ago
    • Logic
    • Logic forum
  • [FAQ] [H] Monostable Multivibrators - Top Questions Resolved

    Albert Xu1
    Albert Xu1
    TI Thinks Resolved
    Quickly find solutions to common questions about monostable multivibrator (one-shot) devices by clicking this link. This FAQ answers the most common questions asked about these devices ……………… Use Cases & Part Recommendations Monostable…
    • over 6 years ago
    • Logic
    • Logic forum

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