piclist 2002\07\06\004638a >
Thread: .1uf between Vcc and gnd ???
face BY : Alexandre Guimar„esemail (remove spam text)


>         Does it make any sense to have a 0.1uf cap between Vcc and Gnd
> if my circuit is gonna be powered by a battery ?

   Yes, you still need it because your PCB traces still have resistance and
inductance regardless of how you put power in.. Always use a decoupling
capacitor for each cmos IC you have on your circuit. Those things switch
very fast and need the power close to them, put the cap as close as possible
to the power pins of the ic.

Best regards,
Alexandre Guimaraes

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