Techniques for reliable high-speed digital circuits

For discussing the 65xx hardware itself or electronics projects.
Post Reply
User avatar
wayfarer
Posts: 191
Joined: 19 Mar 2023
Location: about an hour outside of Springfield

Re: Techniques for reliable high-speed digital circuits

Post by wayfarer »

thoughts on the 74s124 Dual -VCO for breadboard timing?
https://www.jameco.com/Jameco/Products/ ... 298927.pdf
https://www.jameco.com/webapp/wcs/store ... Id=2298927

is it suitable for prototyping?
Top
User avatar
GARTHWILSON
Forum Moderator
Posts: 8773
Joined: 30 Aug 2002
Location: Southern California
Contact:
Contact GARTHWILSON

Re: Techniques for reliable high-speed digital circuits

Post by GARTHWILSON »

Interesting.  I had never heard of it, and checking my data books now, I see they all skip the '124.  It looks like the coarse frequency control is the capacitor, and then you can trim the frequency within a smallish range by the input voltages.  Another approach to get a variable frequency to test things is my VFOs (variable-frequency oscillators) based on Schmitt-trigger inverters.  See viewtopic.php?p=10619#p10619 .
http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?
Top
Post Reply

Return to “Hardware”