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EEPROM PRINTER Memory S93C66B

Posted: Wed May 30, 2018 9:23 pm
by thermofrontier
Need help!
I have a REVELPROG IS, which works great for reading and writing directly to various EEPROM models.
But my question is: I work a lot with inkjet printers, these printers have a kind of memory like the one in the photo. Is there any possibility of reading the contents of the memory and writing in memory without having to disassemble the printer? or read and write through the USB port. I know some software that does this but I can not. If there is anyone who can help I thank you.
I can provide any information I need.
Attached: Technical data sheet of the memory and the photo of the memory.
Thank you very much

Re: EEPROM PRINTER Memory S93C66B

Posted: Thu May 31, 2018 12:45 pm
by ArT
You can use SOIC-8 clip and select EEPROM -> 93 series -> 93..66 [16bit].
I see on photo that pin 5 is ground so you have standard connections (data sheet page 1 on the top).
Connect pins 1,2,3,4,5 and 8 in clip.
Do not connect pin 6 and 7 in soic clip.

Here you have similar example on sligthly different memory:
https://www.youtube.com/watch?v=bl2FaM1SxK4

Before you start in circuit programming - please read chapter 5 in manual (important!)
https://www.reveltronics.com/downloads/ ... manual.pdf

To write it using USB in printer (without deassembling the printer) then you will need dedicated software for printer which communicates with microcontroller in printer, and microcontroller communicates with eeprom. I worry that such software is available (I think that it is not).