Help identifying ICs

C

Chris Osborn

Guest
I have a handful of chips here that I can't figure out what they
are. Their markings are:

UA3403PC
F7827
DJAKARTA

UA3403PC
F7828
DJAKARTA

6915A
7118432

MOC
3031
8343

Or if a picture would help (it's quite large):

http://fozztexx.com/~fozztexx/UnID-IC.jpg

--
See all the insanity of giant K'nex kinetic sculptures
Pictures, movies, and more! http://buildfest.com/
Coming soon: An arcade cabinet made of K'nex!
 
google UA3403 ... quad op amp

7827 = 27 week of 1978 etc

google MOC3031 ... zero crossing triac driver

8344 date code = 44 week of 1983

Tom Woodrow


Chris Osborn wrote:
I have a handful of chips here that I can't figure out what they
are. Their markings are:

UA3403PC
F7827
DJAKARTA

UA3403PC
F7828
DJAKARTA

6915A
7118432

MOC
3031
8343

Or if a picture would help (it's quite large):

http://fozztexx.com/~fozztexx/UnID-IC.jpg
Click to expand...
 
On Mon, 20 Sep 2004 15:34:33 GMT, fozztexx@fozztexx.com (Chris Osborn)
wrote:

I have a handful of chips here that I can't figure out what they
are. Their markings are:

UA3403PC
F7827
DJAKARTA

UA3403PC
F7828
DJAKARTA

6915A
7118432

MOC
3031
8343

Or if a picture would help (it's quite large):

http://fozztexx.com/~fozztexx/UnID-IC.jpg
Click to expand...

ua3403pc = Quad Op Amp ----
http://www.onsemi.com/pub/Collateral/MC3403-D.PDF

MOC3031 = Opticoupler (triac output) -
http://www.isocom.com/datasheets/db92006.pdf


6915A - i dunno but it is a Texas Instruments chip


Bubba
 
Joe McElvenney (ximac@btinternet.com) writes:
Hi,

And how about a guess at a 711 dual-comparator for the last
one.

Cheers - Joe


Maybe, but that seems to be the date code. At least, the others have
Click to expand...
date codes of 83/84 (except for the one with a '78 date code) and you
can be sure of those dates since the IC numbers are very clear. That
number with the 711 has a bit that has an 83 or 84 in it, which matches
the vintage of the other ICs.

Michael
 
Hi,

And how about a guess at a 711 dual-comparator for the last
one.

Cheers - Joe
 
Bubba Jones <Smelly@hotmail.com> wrote:

6915A
7118432
Click to expand...

A search on Texas Instr. web site http://www.ti.com/ gives only one hit
for 6915A

-5.2Vout 12W 3.3V-Input Adjustable Plus to Minus Voltage Converter


--
Roger J.
 
GOOGLE!!!!!


"Chris Osborn" <fozztexx@fozztexx.com> wrote in message
news:dMC3d.21657$ns2.18995@newssvr27.news.prodigy.com...
I have a handful of chips here that I can't figure out what they
are. Their markings are:

UA3403PC
F7827
DJAKARTA

UA3403PC
F7828
DJAKARTA

6915A
7118432

MOC
3031
8343

Or if a picture would help (it's quite large):

http://fozztexx.com/~fozztexx/UnID-IC.jpg

--
See all the insanity of giant K'nex kinetic sculptures
Pictures, movies, and more! http://buildfest.com/
Coming soon: An arcade cabinet made of K'nex!
Click to expand...
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top