In-Reply-To: <001d01c01ab6$8232a0e0$260bf6cd@pc>

>
> > I am going to design a digital clock using PIC16F84
> > my problem ,what is the refresh rate to redisplaying
> > the numbers on the 4 seven segments to be sure that
> > they will be correct displayed.
>
> 1 KHz is usually good enough, 2 is better if you can arrange it.
>
> These are LEDs, right?

Eh?

100Hz is plenty.
There is no reason to go any higher.

(100Hz That means you go through all the digits 100 times a second)

Brian Gregory.
briang@cix.co.uk

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