Who says 555 projects can't be awesome?

555 Functionality isn't all that complex... two comparators plus an R-S flip-flop. ...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     |
             
I love to cook with wine.     Sometimes I even put it in the food.

have

But you would have to cast them all in aluminum to achieve nearly the = same thermal properties.

?-?

Better to put an actual 555 inside. The resulting infinite regress will keep 555 enthusiasts permanently busy, if not employed.

-- Joe

I want an espresso maker that looks like a 74123.

:)

--Winston

Cheers! Rich

I once made a tie pin out of an 8751 chip. ;-)

Cheers! Rich

I doubt seriously that John Larkin could even draw a schematic of a

555 at the transistor level.

I don't quite understand this "hate" of 555's, much like the hate of Sarah Palin, driven by intense jealousy. ...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     |
             
I love to cook with wine.     Sometimes I even put it in the food.

A 74123 is probably the crappiest one-shot ever. ...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     |
             
I love to cook with wine.     Sometimes I even put it in the food.

I dunno. We had an entire product that depended on a whole bunch of them. It worked great and made us a ton of money. I re-designed it using a few synchronous state machines in PAL chips back in '94. That worked much better, was about a third of the size and used less power. ________________________________________________________

I was aiming at a little humor with my response, since I positively *love* two-shot espressos.

--Winston

I have a ceramic 486DX chip that's a very fine x-acto knife sharpener.

John

TI makes a tinylogic single 123 in a US8 package

SN74LVC1G123DCU

Nice for blinking LEDs on narrow pulses and such.

John

I've used more '123s (2, I think)) than '555s (0) in my career.

I used one of those (in a TSOP or SM8, or some such) this year, in fact.

I've used a lot of 123's. A dual 123 makes a neat tach or wideband FM discriminator.

ftp://jjlarkin.lmi.net/DoubleTach.jpg

which I need to do again soon.

I used a 555 once. Broke a perfect record. At least I didn't use it the normal way.

John

Oh, I've designed with them. Not afraid of them at all. The projects always get killed, though. Perhaps there's a lesson in there...

Has it seen a lot of use? The tie pin, I mean, not the 8751.

Best regards, Spehro Pefhany

--
"it's the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

Yup. Anything simple enough to be done with a 555 can't be worth much.

John

r

=A0 =A0 ...Jim Thompson

Jealous of a 555? I'm pretty good at timing, and my wife thinks I'm a little unstable, but jealous of a one-shot? No thank you.

My jealously of Sarah is limited to her thick and lustrous hair.

-- Joe

Cool!

--Winston

What's a tie pin?

What's a tie?

John