D from BC snipped-for-privacy@comic.com posted to sci.electronics.design:
They do not really count up that way. Flip-flops and similar do not usually count up at the same way as ordinary gates. Read the data sheets.
Is that 9602 the old Fairchild TTL one-shot? LOL, you must be old ...real old.
Your stuff is so ugleee, have to coin a new word: *uglionics* for what you do...
OK, but a 9602 is 40 ns prop delay all by itself.
I think the entire thing can be done with a single schmitt trigger gate, one prop delay.
John
It has the compensating virtues of being fast, being hazard free, being simple, and doing exactly what was requested.
Measuring the ugliness of your designs is like evaluating 0/0. You belong to the Ladies Auxiliary of S.E.D. Hey, bring us another tray of those little triangular roast beef sandwiches with the crusts cut off... you do those so well.
John
Yup. After they both fire, roughly 40 ns after, the fun begins.
Another hairball, but at least it's a bit simpler. Still too slow, even when it doesn't screw up.
John
A 9602 is 40 ns all by itself. The OP's limit was 10.
John
[snip]
Show us.
...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 |
America: Land of the Free, Because of the Brave
Sno-o-o-o-o-o-ort ;-)
...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 |
America: Land of the Free, Because of the Brave
Oh come on, somebody give it a try first.
John
Stop being coy, John. Just show me, and I'll simulate it.
...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 |
America: Land of the Free, Because of the Brave
I'll try to figure it out while ... stuck in traffic.. waiting in line.. waiting for the waitress.. waiting for a gas fill and riding the elevators :)
I might even freak out some people by mumbling some electronic gibberish to myself :)
D from BC
I'm just using a topographical point of view... The more devices..the more delay.. I do realize gates and ff's have individual tp specs to be later checked on datasheets..
Either a topology is developed 1st and then the technology is found for a fitting.... Or... The alternative is.. The technology is chosen 1st and a topology is developed based on that.
D from BC
It's too simple to bother simulating.
John
I freak out the waiters at Macaroni Grill (paper tablecloths) with my doodles.
...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 | |
[snip]
OK. So show me already.
...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 |
America: Land of the Free, Because of the Brave
You want me to show all my cards, without a little raising and passing and bluffing first? That's no fun.
Really, it's pretty obvious. Once you consider reducing the prop delay to 1, it just pops out.
John
John, For the past few weeks your BS Score has been rather high, so I call you.
...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 |
America: Land of the Free, Because of the Brave
What bs rate? I posted the best and simplest deglitcher so far, and there's nothing wrong with it [1]. I posted two cops micropower-booster circuits, both of which are usable; the seesaw inverter is actually more interesting than it may first appear. I just posted a rather elegant perfect-class-AB signal splitter, which I sincerely hope will piss Fred off.
You think the schmitt thing is bs?
John
[1] it would be even better if I replaced the RC with one of those magical "Delay" boxes.
Hear ya, that's a good point. If going low is noisy it will re-trigger the OR /RC combo, and send a fast glitch through the Output. Off hand I'd put a brief RC filter on the output to change the glitch to a small bump.
I posted a schematic already, but it would appear there is more interest in other ways, so I was going to drop out of the thread and just lurk to see where it heads to.
Regards Ken
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.