Electronics > Beginners
Help needed identifying PDIP EEPROM
ESXi:
Hello,
I want to read a EEPROM chip, but I can't find the brand or datasheet.
It is a "P95AD 93C46EN". The chips looks like this with also the "F" on it.
(See the attached image of my chip)
All the information I found was this;
http://www.int-thinking.net/ic218914/93C46EN.html
it says manutacturer NSC, this is not right? It's also not FairChild or Micro-something and so on?
What I do know is that it is the same brand chip and same model number so it is a three-wire serial eeprom 1k.
In the end I want to connect this to my Arduino and dump the eeprom and write it to a new one.
DC1MC:
It's a Microwire EEPROM, a bastard child protocol between SPI and I2C >:D
http://ww1.microchip.com/downloads/en/devicedoc/21712B.pdf
Read/Write it with this stuff:
https://github.com/tim0s/MicrowireEEPROM
Good luck,
DC1MC
ESXi:
Hey Thanks DC1MC!
I will post pictures here when I finished all the work. My speedometer failed today in my car (earlier replaced the sensor in the transmission) but today the stepper motor gave the ghost >:( and had to buy a "new used" mileage clock. Hopefully I can restore it with original mileage..
I did a continuity test on the stepper motor, the last contacts in the motor almost at the end are crunchy as f. The pointer stays between 0 and 2 and it's tripping when I power up the dashboard. It's a old VW 3.
amyk:
It is Fairchild (now ON), part is FM93C46EN. Non-RoHS and very old, obsolete part.
drussell:
The 93C46 is a bog-standard EEPROM, readily available in many different versions. Digikey alone returns 306 hits with 67 varieties in stock for immediate shipment...
I can't see why you would have difficulty finding datasheets for them, they're a common part.
Navigation
[0] Message Index
[#] Next page
Go to full version