what is this chip?

[Bjarne]

Hey

I've got this keychain from the 80'ies. It's a transparant plastic
thingie with a 16-legged chip inside.

I'm curious about what it is? On the chip is printed:
93415-DC
F 7715

And on the plastic it says:
COMPUTER
GESELLSCHAFT
KONSTANZ
MBH

Anyone know what it is?

 

[Al]

In article <pn56531eb477f2os22r6mavg4cb95cqnmi@4ax.com>,
Bjarne <no@no.no> wrote:

Hey

I've got this keychain from the 80'ies. It's a transparant plastic
thingie with a 16-legged chip inside.

I'm curious about what it is? On the chip is printed:
93415-DC
F 7715

And on the plastic it says:
COMPUTER
GESELLSCHAFT
KONSTANZ
MBH

Anyone know what it is?

It's a Fairchild (F) memory chip date coded 7715 (1977 week 15)

Check this out.

http://www.datasheetarchive.com/search.php?s=0&q=93415

Al

 

[Bjarne]

It's a Fairchild (F) memory chip date coded 7715 (1977 week 15)

Thanks! Is there anything special about this chip? Just wondering if
there is any reason that it got turned into a keychain. I know very
little about electronics but 1977 seems quite early for a memory chip?

 

[Eeyore]

Bjarne wrote:

It's a Fairchild (F) memory chip date coded 7715 (1977 week 15)

Thanks! Is there anything special about this chip? Just wondering if
there is any reason that it got turned into a keychain.

It's probably duff / surplus.

I know very little about electronics but 1977 seems quite early for a memory
chip?

http://en.wikipedia.org/wiki/Dynamic_random_access_memory

Graham

 

[Michael Black]

Bjarne (no@no.no) writes:

It's a Fairchild (F) memory chip date coded 7715 (1977 week 15)

Thanks! Is there anything special about this chip? Just wondering if
there is any reason that it got turned into a keychain. I know very
little about electronics but 1977 seems quite early for a memory chip?

It's late by then, a good portion of a decade had passed since the
first RAM ICs had come along, and that may even be too short a time.

But, there was really rapid growth, as the companies geared up and
demand increased. I didn't look up the IC, but something that was
around in 1973 would hardly be useful by 1977, because more memory
was desired and it was available. So the only reason someone would
want a 256 by 1 bit RAM from early on was either to replace an IC
in an existing unit, or for novelty/historical reasons.

Michael

 

[Al]

In article <k4p653l6di5ofo3r03391ra56bg2e1n856@4ax.com>,
Bjarne <no@no.no> wrote:

It's a Fairchild (F) memory chip date coded 7715 (1977 week 15)

Thanks! Is there anything special about this chip? Just wondering if
there is any reason that it got turned into a keychain. I know very
little about electronics but 1977 seems quite early for a memory chip?

In the "early" days, novelty items were made of of defective devices'
things like tie tacks, pendantes, etc.

Since I had access to fairly large numbers of defective devices, I used
to make little animals out of them by soldering them together. For
example, I would solder two 14 DIPs together to make alligator jaws.
These in turn would be soldered to a 40 pin ceramic DIP which was the
body. And then you get the picture, other suitable components for the
tail and legs. But that was in the late 70's, early 80's.

Today they would be banned because they would have LEAD solder in them!
Jeesh!

Al

 

and , by now, YOU have lead/antimony/tin/arsenic/ and who knows (mercury)
from the soldering fumes in YOUR head!

despite my cautious use during my formative years ( many many years ago) it
was not uncommon to hold the solder in my teeth as a substitute "panavise"
and inhale the fumes as i assembled god knows what ever into a miracle
invention.

and to pour the curious liquid mercury from a tip-switch around in my nubile
porous skinned hand to amuze myself.

no problem, no worries, and no warnings from those teaching me about the
electronics either! WOW, and i actually have survived. even at some
diminished capacity beyond the effect of the gallons of beer.wine,jack
daniels, Graves Grains and whatever during my college and after times,
office parties and gatherings, weddings and other.

then there's the years of following the exhausts of countless Tetra ethyl
added gasoline powered vehicles during slow slow slow pileups on the
freeways, and the tons of soot from truck, power plants, and clear cut/burn
farmers.

and we worry so much about our childern? sorry folks, it's just getting
WORSE!

hava great day! ;-))

"Al" <no.spam@wanted.com> wrote in message
news:no.spam-E2470E.09050223052007@news.verizon.net...

In article <k4p653l6di5ofo3r03391ra56bg2e1n856@4ax.com>,
Bjarne <no@no.no> wrote:

It's a Fairchild (F) memory chip date coded 7715 (1977 week 15)

Thanks! Is there anything special about this chip? Just wondering if
there is any reason that it got turned into a keychain. I know very
little about electronics but 1977 seems quite early for a memory chip?

In the "early" days, novelty items were made of of defective devices'
things like tie tacks, pendantes, etc.

Since I had access to fairly large numbers of defective devices, I used
to make little animals out of them by soldering them together. For
example, I would solder two 14 DIPs together to make alligator jaws.
These in turn would be soldered to a 40 pin ceramic DIP which was the
body. And then you get the picture, other suitable components for the
tail and legs. But that was in the late 70's, early 80's.

Today they would be banned because they would have LEAD solder in them!
Jeesh!

Al

 

[Franc Zabkar]

On Wed, 23 May 2007 13:06:08 GMT, Al <no.spam@wanted.com> put finger
to keyboard and composed:

Since I had access to fairly large numbers of defective devices, I used
to make little animals out of them by soldering them together.

http://sexornot.blogspot.com/2005/11/diodsex.html

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

 

[Lostgallifreyan]

Franc Zabkar <fzabkar@iinternode.on.net> wrote in
news:f95h53d75mkll1g83mfaid0e12c7nnsot5@4ax.com:

http://sexornot.blogspot.com/2005/11/diodsex.html

Cute.