Logic Question

Mar 07, 2011 50 Replies

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Could you possibly add a buffer in order to create a 3 stage delay?

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I know. That's a shame :-(

Once upon a time there was the GI Bill where servicemen were properly rewarded for their sacrifices. ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Remember: Once you go over the hill, you pick up speed

I thought the problem was unequal delays from one input to one output under different conditions (other input is high or low).

This means that David Eather's mux idea is what you need. Since the mux inputs are fixed, the gates can be simplified.

Reply in group, but if emailing add one more zero, and remove the last word.

I am also curious as how that is supposed to work.

If you need an inverted output too just run the bottom mosfet into the base of a top CCS loaded NPN. I.E. a mirror structure to the PNP shown.

(2x

I was just transferred to one of the newest VA clinics in the country, at 'The Villages' which is located south of Ocala, Fl. It has

100 exam rooms, MRI, Catscan, Ultrasound & X-ray. It has a dental clinic, wound care, and optical department. They are supposed to offer Lasik surgery later this year. It has two outpatient ORs, and a dozen other services. The only difference between it and a hospital is that there are no patient rooms. State law sets the number of patient rooms in each area, but has no control over any other services. It also has over 160 parking spaces, compared to the couple dozen at the last clinic I was assigned to. I have lab work there on the 17th, and my first doctor's appointment at the end of the month.
You can't fix stupid. You can't even put a Band-Aid? on it, because it's Teflon coated.

The input resistors sum the two inputs to three states, 0 (both 0),

1/2 (either at 1 with the other at 0), or 1 (both 1).

The mosfet gate thresholds are used as comparators for an input state detector. (Both inputs) 0 or 1 turns off either the top or bottom mosfet. 1/2Vcc turns on both.

The output PNP only conducts when both mosfets conduct. I.E.The output goes high when the inputs are either 1-0 or 0-1 but not when 0-0 or

1-1.

couldn't

(2x

Great! Good luck! ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Remember: Once you go over the hill, you pick up speed

Thanks. :)

You can't fix stupid. You can't even put a Band-Aid? on it, because it's Teflon coated.

I had both ends done a few months ago. Nothing to it.

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Jim Thomps> Great! Good luck!

I had that colonoscopy several years ago. I slept through it.

You can't fix stupid. You can't even put a Band-Aid? on it, because it's Teflon coated.

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