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A Few Questions About 12 Stage Ripple Counter 4017

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Up in the description, I mean 4040Can it drive 12 LEDs at once, and what would the Vcc be? Using the same Vcc, can it drive only 1 LED w/o destroying it? Lastly, how many possible combinations can it give out, including all on and all off?

Edited by NNNOOOOOO (see edit history)

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Up in the description, I mean 4040
Can it drive 12 LEDs at once, and what would the Vcc be? Using the same Vcc, can it drive only 1 LED w/o destroying it? Lastly, how many possible combinations can it give out, including all on and all off?

http://electronicsclub.info/cmos.htm

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Up in the description, I mean 4040
Can it drive 12 LEDs at once, and what would the Vcc be? Using the same Vcc, can it drive only 1 LED w/o destroying it? Lastly, how many possible combinations can it give out, including all on and all off?

I found the answers.
yes, 9v
yes
3,980 (in my new project, the number is 39,799)

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