Reliable 555 timer doesn’t falsely trigger Powering the timer from a NOR gate keeps it unpowered until needed. Power an LED driver using off-the-shelf components Drive LEDs with a 555 timer and two ...

Dark bars in background are 1 mm ticks on machinist’s rule. (click to enlarge) TI’s LMC555 claims to be the smallest and fastest fully-featured 555 available.

You asked for it, and now you’ve got it. It’s taken more than a decade of accumulated complaining, but this gigantic 555 timer IC has finally gathered enough psychokinetic energy to tak… ...