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  • CD4017B: Cascade timer for 20 to 80 lights

    Resolved
    Part Number: CD4017B Other Parts Discussed in Thread: CD4514B , CD4510B , SN74HCS74 , SN74HCS164 Hi Experts, Our customer is looking for a schematic for the CD4017B cascade timer for 20 to 80 lights. He have a few circuits he got off the internet, but they…
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    • Answered

  • CD4017B: Voltage threshold for CD4017B 3.3V supply

    Resolved
    Part Number: CD4017B Dear Sir/ Madam, If we supply 3.3V to CD4017B, what is the threshold for input high and low voltage(VIL, VIH)? Datasheet provide data for 5,10,15V supply but no 3.3V data. I just want to confirm if it is 70% supply voltage for HIGH…
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  • CD4017B: Supply voltage

    Resolved
    Part Number: CD4017B Dear Sir/Madam, I just look into CD4017B datasheet, supply voltage range should be 3-18V, but datasheet provide 5V, 10V and 15V data only. Can i implement it on 3.3V circuit? and 3.3V as logic high level? Thanks. Best Regards, …
    • Resolved

  • TINA/Spice/CD4017B: CD4017B or Decade Counter Model in TINA-TI

    TI Thinks Resolved
    Part Number: CD4017B Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models Hello, I'm trying to use a CD4017B counter or something similar in TINA-TI, but I cannot find a spice macro for it in either the components library or…
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  • TINA-TI CD4017B Spice model?

    Resolved
    Other Parts Discussed in Thread: CD4017B Hi Where can I get a spice model for CD4017B? I have a pspice model but produces error: "Not supported syntax element LOGICEXP" Thanks
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  • CD4017B model "Not supported syntax element LOGICEXP"

    Resolved
    Attempting to create new macro from spice model file causes error: "Not supported syntax element LOGICEXP" Can anyone help?
    • Resolved

  • RE: CD4541B: Functionality, setup and input questions.

    Hi Chad, Thanks for the response. I have not tried that suggestion but it's a good idea. The device does work at f<1k, just not reliably. My 2 hour timer lasted about 2.2 hours, so I thought using an external oscillator would be a good solution.…

  • RE: NE555: How do I create a biphasic square wave generator circuit with variable frequency and magnitude?

    Kiryl, The time periods can be ratios, such as all steps are the same width (1:1) If the ratios can fit into 10 time steps or less then CD4017B can team up with a single NE555. The NE555 sets the repetition rate (output frequency). The CD4017B sets the…
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  • WEBENCH® Tools: which Frequency Multiplier should i choose?

    Resolved
    Other Parts Discussed in Thread: SM320F28335-HT , MSP430F2619S-HT , SM320F2812-HT , CD4046B , CD4017B , CD4022B Tool/software: WEBENCH® Design Tools I need a Frequency Multiplier as following: Operates From a Single 3.3 V or 5.5V Input Clock Frequencies From…
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  • LM3488 External clock generation @ 550 kHz

    Resolved
    Other Parts Discussed in Thread: LM3488 , PMP11112 , CD4017B Dear TI community, From a single DC bus, I want to generate 2 outputs using two boost converters using the LM3488 controller, both at 550 kHz. - Should I synchronise their switching? - If so, how…
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