Tom Austin <taustin> wrote:
> One think to keep in mind, you are best off not trying to drive the LED
> directly from the chip.  Some chips can do it, but most cannot.  Lots of
> times you need to put a *switch* that the gate switches.

I have an electronics kit, with CMOS ICs, LEDs, and AA batteries adding up
to 9v. I have always connected LEDs directly at the output of gates. With a
resistor, of course (3.3k ohm), I mean without any kind of switch.

Post a reply to this message