🚀 go-pugleaf

>From: flux@sys6626.bison.mb.ca (John Kamchen)
>Subj: Counter
>Date: 27 Jan 93 07:07:13 GMT
>
>I'm using a great chip from Avesem, a Video Genlock PLL chip, and I need
>to design a counter that counts to 1818, then resets back to zero (with 
>some kinda \RCO when it hits 1818).
>I've looked through all my TTL data books, and nothing really strikes me
>as being 'right' for this application.
>The input clock pulse is 28mhz, so that rules out CMOS parts.
>Any ideas?  I've got two kick-ass projects I can use this chip in, and
>I can't do anything untill I figure out a counter.
> 
>-John
>SSE BBS (204)589-1078 v32bis AmiTronics- MEGS of 'em

isn't there a standard TTL/LSTTL divide by 12 counter comprising a
/2 and /6 stages? If so use the /6 stage to reduce your 28MHz to 4.667 
MHz
and then use a CMOS counter suitably decoded to divide by 303 ...?
Bruce