IC part number and datasheet

[Yianni]

Which is the part code of this ic? I searched for the printed code but found
nothing. I think it's a serial eeprom. I'm looking for its datasheet.
http://users.forthnet.gr/ath/johnge/temp/chip62.jpg

 

[Graham W]

Which is the part code of this ic? I searched for the printed code
but found nothing. I think it's a serial eeprom. I'm looking for its
datasheet. http://users.forthnet.gr/ath/johnge/temp/chip62.jpg

The top one is the model number (or part of it),the 2nd is the
batch number and the last is a date code.

HTH

 

[Yianni]

Using the top code I find nothing about this chip. I suspect some digits are
missing. For example a similar ic is coded as LC56, and it is the 93LC56.
Do you, or someone else, know the manufacturer (from the NN maybe)?

 

[Ross Herbert]

whatsitoutof?

 

[Franc Zabkar]

Which is the part code of this ic? I searched for the printed code but found
nothing. I think it's a serial eeprom. I'm looking for its datasheet.
http://users.forthnet.gr/ath/johnge/temp/chip62.jpg

Short version:

It looks to be an RFID serial EEPROM used as a counter chip in Xerox
copiers and Epson laser printers.


Long version:

I found this Chinese web page:

http://translate.google.com/transla...n3517&num=25&hl=en&client=opera&rls=en&hs=HeO
http://tinyurl.com/3c92xx

FWIW, someone is asking ...

"Who can read and write nn3517 chip RF reader. nn3517 used in laser
printers epson chip on the drum."

There is also a reference to RFID.

This site offers better info:
http://translate.google.com/transla...n3517&num=25&hl=en&client=opera&rls=en&hs=HeO
http://tinyurl.com/2r9uf7

=================================================================
Copier / printer counter chip summary :

At present, almost all market brand copier / printers are equipped
with their own unique counter chip, Its main purpose is bound
customers to buy their own original consumables to maintain profits
But it virtually damage the interests of consumers. Recycling could
have the drum and other products can only use one or can not fully
utilized. Counter chip technology for the study of saving resources is
of important significance. Counter chip There are many types, as my
research is limited, mainly referred to the following categories:

<snip>

E, NN3517 Chips : Wireless Access, EPSON2020 currently used in such
machines. Among the new models is the largest chip. Chip Packaging
NN3517 on the screen.
=================================================================

- Franc Zabkar

 

[Yianni]

The photo shows the whole pcb. It is connected to a coil. Of course it's a
RFID chip, from laser toner cartridges.

 

[Yianni]

Thanks for the links. But they don't help much. The first link comes form
someone which sells the programming service, but unfortunately he is in
China. The second link, just someone else -like me- asking for the same
chip.
Is there any chance to quess the manufacturing company?

 

[Yianni]

Could it be manufactured by Microchip? The pins corresponds to a Microchip
specific chip, but the part number is total different.

 

[Allen]

Could it be manufactured by Microchip? The pins corresponds to a Microchip
specific chip, but the part number is total different.

--
Yianni
[email protected]
(Remove the number nine from my email address to send me email)








- Show quoted text -

My Epson C45 bubblejet printer ink cartridge also has such a counter
chip. Whenever my friend refils the ink for me, he has to put a small
adaptor pressing against the small pcb on the cartridge. The adaptor
has a green and a red LED and one of the led will flash for a while
then the cartridge is reset and can be reused. I dont know if there
is such an adaptor for the laser printer. But if you can wait long
enough, people will always came out with a new adaptor for that
model. The Chinese are especially very fast and keen in doing this.
may be I should ask him where he got the adaptor.

Allen

 

[Yianni]

At the moment, there is no adapter for this chip. On the other hand the chip
I'm asking is a contactless (RF) chip.

P.S. older epson chips were easy. Now, epson designed and uses a new chip,
and it confuses many people...

 

[Gary Tait]

Is there any chance to quess the manufacturing company?

I doubt it would help you.
Since the neature of the device is some sort of revenue protection
security, you will have little chance of getting real data on it.