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  • SN74LVC1G123 has a model in "PSPICE for TI" but there isn´t a model for SN74LV221A

    Resolved
    Other Parts Discussed in Thread: SN74LV221A , SN74LVC1G123 , SN74LV123A Hi, I was wondering why there is a model of the SN74LVC1G123 / SN74LV123A but none of the SN74LV221A? I found this thread "e2e.ti.com/.../faq-why-is-there-no-pspice-model-for-a-monostable…
    • Resolved

  • SN74LV221A: PULSE CUT SHORT, RETRIGGERS WHEN IT SHOULD NOT

    TI Thinks Resolved
    Part Number: SN74LV221A Other Parts Discussed in Thread: CD74HC221 , CD74HCT221 , Number: CS0323764 Contact: JOHN LIGUORI First name: JOHN Last name: LIGUORI Short description: PULSE CUT SHORT, RETRIGGERS WHEN IT SHOULD NOT Email: jliguori@firecominc.com Company…
    • Answered

  • SN74LV221A: Replacing SN74HCT221A

    Resolved
    Part Number: SN74LV221A Other Parts Discussed in Thread: CD74HCT221 Hello We have a product using the SN74HCT221A and evaluating whether the SN74LV221A will be a drop in replacement. This thread describes a difference in the LV part: SN74LV221A: SN74LV221A…
    • Resolved

  • RE: SN74LV221A: SN74LV221A Shorter pulse than expected on output

    Hi Nicolas, This process will take longer than expected. Can I help you find an alternative part for your system?

  • SN74LV123A: SN74LV123A vs SN74LV221A CEXT to GND connection

    TI Thinks Resolved
    Part Number: SN74LV123A Other Parts Discussed in Thread: SN74LV221A Hi, I have a question regarding the connection to GND of the pin CEXT of the monostable SN74LV123A. In your SN74LV123A datasheet, the CEXT, apparently should NOT be connected to GND, or…

  • RE: SN74LV123A: Differences in data sheet description

    Ladisch san Thank you for your prompt reply. e2e has similar questions and different answers, so please check again. The question is SN74LV123A、I think the following is a function block diagram of SN74AHC123. In this function block diagram, it is thought…
    • Answered

  • RE: CD14538B: No Spec's provided at VDD=3V

    Resolved
    Hi Paul, The CD4000 technology family is best suited for 15V operation. In the case of a 3V supply I recommend using either the SN74LV221A or the SN74LV123A . Thanks, Anthony

  • RE: SN74LVC1G123: configure as noretriggerable monostable?

    Hi Adam, The SN74LVC1G123 is retriggerable only. If you'd like to use a non-retriggerable device, the SN74LV221A is a good option. Large R and C values aren't a problem for most of our monostable multivibrators. The main concern will be the leakage…
    • Answered

  • RE: SN74LVC1G123: About 1 in 500 failure on production line

    Resolved
    Hey Shaun, The SN74LV221A has Schmitt-trigger inputs on all 3 trigger inputs, so that might be an option for you in future projects. It's a larger device - dual channel, but it maybe be worth using instead to avoid any issues.

  • [FAQ] How do I terminate an unused channel of a monostable multivibrator (one shot)?

    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…

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