Josh Koffman wrote:
>
> Well, I've been browsing the archives about resonators and their
> accuracy. There seem to be mixed opinions about wether or not they are
> stable or not. I will be transmitting a bit banged serial signal at
> 250kbps from a 16f84 running at 4mhz. Should I stay away from the
> resonators? If only they weren't so nice and small, I'd have an easier
> time learning to love crystals. Thoughts anyone?


Hi Josh, we extensively use Murata resonators
4MHz, 10Hz and 16MHz. With 2x 22pF caps. In all
cases i've measured stability better than 1%
under most operating conditions.

You can get the application done fine depending
on how you synchronise the serial between
transmitter and receiver and how long you need it
to stay synched for. If it is going to the PC
I generally prefer the parallel port, its quick,
easier to interface and you can send more than
one bit at a time. Sending three or four bits
at a time is much quicker than one bit, and all
you need are three or four resistors as your
interface.:o)
-Roman

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics