Re: LCD64 Update /Help

From: john/lori (
Date: 2001-03-09 16:55:46

> Hallo Nick,
> > 1) TOD signal - I'm hoping to use a tuned 555 timer to run at 50Hz
> An other idea is to use some (CMOS) gates to derive a 50 (or 60) Hz clock
> out of CLK2. This is probably more precise then using a 555 and a
> RC-network.
> Disadvantages: more IC's, maybe more current ??? (what does a 555 need?)
> Groetjes, Ruud

Could probably rig an analog frequency divider using a 555, but I'm
not sure it could be made any more accurate than a simple oscillator.

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