[sdiy] 556 do they sync?

[KD KD]

Hmm, thanks!
I dont have had that problem with separate
cmos 555 but the cmos 556 might be different!

If the substrate are tied to GND it could be quite silent i suppose.

2012/3/15, Tom Arnold <xyzzy at sysabend.org>:
> On Wed, Mar 14, 2012 at 08:11:13PM +0100, KD KD wrote:
>> If both used as astables do the lock at some frequency?
>
> Based on experiences with a pair of 555's, even CMOS ones, you would have no
> way to ever fully decouple the 555's in a 556 and latchup I think will be
> inevitable.  Its hard enough with two separate chips.
>
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