[sdiy] Divide by 10^6?

[Oren Leavitt]

CD4521 or MC14521 24 stage divider will give you a one-chip 2^20 divide 
(Q20 output)

flightofharmony wrote:
> Thanks! 
> I confess that I don't really know anything in the realm of logic, just
> analog. The exact 10^6 is just a ballpark, I just need to slow it down
> enough to blink the LED at a visible rate. The 2^20 sounds fine to me! Could
> you point me to some datasheets or part numbers please?
> 
> Best regards, 
> 
> ~flight
> flight at flightofharmony.com
> http://www.flightofharmony.com
> 
> 
> 
>>-----Original Message-----
>>From: Veronica Merryfield [mailto:veronica.merryfield at shaw.ca]
>>Sent: Thursday, August 27, 2009 11:05 PM
>>To: synth DIY
>>Cc: flightofharmony
>>Subject: Re: [sdiy] Divide by 10^6?
>>
>>If you have an address generator or counter, use one of the high
>>address lines. Failing that, a couple of 12 bit counter chips, as 10
>>bit counters, cascaded would give you divide by 2^20 which is 4%
>>different from divide by 10^6.
>>
>>
>>On 27-Aug-09, at 10:41 PM, flightofharmony wrote:
>>
>>
>>>Hello everyone,
>>>
>>>I have a question for the logic & digital folk: is there a
>>>low-component-count, off-the-shelf way to divide down from 20MHz to
>>>20Hz?
>>>I'm trying to add a clock rate LED to the Sound of Shadows delay
>>>module
>>>prototype I'm working on. A cascade of six 74*90 ICs works fine, but
>>>that's
>>>a lot of board space just to blink an LED.
>>>
>>>Best regards,
>>>
>>>~flight
>>>flight at flightofharmony.com
>>>http://www.flightofharmony.com
>>>
>>>
>>>_______________________________________________
>>>Synth-diy mailing list
>>>Synth-diy at dropmix.xs4all.nl
>>>http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> 
> 
> 
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