It was a 556 dual timer in the Commodore 64. The Commodore XIC 20 used a single 555.
-- Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
Except for the "Buy a $100.00 development system and learn to program it" part.
Thanks! Rich
Oddly enough, what I've noticed is that most of them support the view that the 555 isn't much used in serious circuit design.
Superior for some jobs. And I can - and have - provided a rational explanation of why this is so, but I don't seem to have simplofied it to the point where you can process it.
If you say so John. Now take your medication.
By constructing an argument that you can follow? Life's too short - I'm already 63.
Which would have been very handy - you effectively sustituted for them with your magic diode, which substantially degrades the 555's unimpressive timing stability.
Thats an unstable ..
It wasn't - 5 out of the 30 years, and even there I was working the sub-contacting engineers. You do make a business of pulling non-facts out if thin air.
You wouldn't get very far trying to run a team like that. The closest I got to behaving like that was when one of the junior engineers wanted to turn a TTL-gate into a monstable, and I got him to work out the worst case tolerances on the monostable period - he was quicker at it than you were.
It's not phobic. I've simply learned that checking out the 555 is waste of time.
Yes John.
Which always turns out to be a 555 - funny, that.
As restrictions go, not being allowed to use the 555 would be rather like forbidding fish to cycle.
How, smartass?
It certainly feels that way.
And your example is?
What would you know about it?
Because complex problems, like complex arguments, are beyond you.
MC6802, IIRR
If you say so.
So am I.
-- Bill Sloman, Nijmegen
Sure:
-- Cheers! Rich
-- Depends on what\'s meant by serious. My version of \'serious\' is matching the hardware to the application and making it bulletproof, and for most of the stuff that shows up around here where just a simple timer or one-shot or astable is needed, a 555 of one flavor or another fills the bill admirably and sends the customer on his happy way.
In message , dated Mon, 14 Aug 2006, John Fields writes
Since this thread is about a mile long now, and is a dialogue, why not just drop it?
BTW, I've just designed in a CMOS 555. It does exactly the job it needs to do.
-- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
Keep an eye out you window. Bill Sloman will soon show up to break you from your evil ways. ;-)
-- Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
As opposed to working out where you have to put the "magic diode" to get the 555 to do what you want when the input and output polarity don't suit your application?
-- Bill Sloman, Nijmegen
-- Hmmm... It sounds to me like you\'re finally starting to learn about the finer points of designing with 555s. Congratulations! Soon we\'ll have another convert among us.
Not likely - you don't seem to be aware of the nasty side-effects of the magic diode.
-- Bill Sloman, Nijmegen
If there is no such thing as 'will' and we are all puppets of some supreme being, then its His fault that I don't believe in Him.
-- Paul Hovnanian mailto:Paul@Hovnanian.com ------------------------------------------------------------------ Real programmers don\'t draw flowcharts. Flowcharts are, after all, the illiterate\'s form of documentation. Cavemen drew flowcharts; look how much good it did them.
I don't believe that there is a Kevin A. Its just Genome's imaginary playmate posting while he's asleep.
-- Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
Symmetric is a requirement or it would not be interesting.
-- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens. --Schiller
Posted about a week ago...
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
He doesn't believe that people ever actually design circuits, either.
John
There is a family of divide-by-something circuits with square wave outputs that have been making the IFD circuit for decades. Ever popular, they seem to be.
John
Yes; the denial of the concept of 'free will' creates many anomalies. But acceptance of it requires the conclusion that 'mind' can influence 'matter' in the brain. Perhaps it can; not by some unknown metaphysical process, but through an emergent property of the brain, affecting the balance of neurotransmitters.
-- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
In message , dated Tue, 15 Aug 2006, Michael A. Terrell writes
No, I've met him. Genome might be HIS imaginary playmate... (;-)
-- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
In message , dated Mon, 14 Aug 2006, John Larkin writes
So his writing a SPICE was knowingly a futile exercise?
-- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
The 555 can be made to work magic too ;-)
Dave :)
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