A Few Questions About 12 Stage Ripple Counter 4017

[NNNOOOOOO 0]

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 September 10, 2010 by NNNOOOOOO (see edit history)

[Bikerman 2]

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

[NNNOOOOOO 0]

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)