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YOUNZ.1
Associate
February 1, 2021
Question

Hi, i don't want to know if the 95042U3 is simply an 95040 i don't have datasheet on this eeprom for automotive device. I want to know with which device i can read it or write it.

  • February 1, 2021
  • 8 replies
  • 2497 views

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This topic has been closed for replies.

8 replies

Pierre P.
ST Employee
February 1, 2021

Hi,

In standalone, you can read/write the device with all "eeprom reader" available on the market.

Best Regards

Team EEPROM suPPort

YOUNZ.1
YOUNZ.1Author
Associate
February 1, 2021

Hi

Thanks a lot for your reply but which chip need to select because on all device we have 95040 but not 95042UE is it the same IC or not ?

Pierre P.
ST Employee
February 1, 2021

If 95042UE is the top marking,it's unknown to us.

BTW, lot of chance it would be a 4Kbits SPI.

YOUNZ.1
YOUNZ.1Author
Associate
February 1, 2021

Thx a lot. Just to tell the ref is an ST Microelectronic specific for automotive. You find it on Anti Blocking System Wheel module.

Pierre P.
ST Employee
February 1, 2021

Please, give me all the marking informations. Picture would be welcome for better support.

NKiri.3
Associate
April 20, 2021

Hi there! I wanted to politely ask for your help, if you can answer a simple question: i have a 950406 k128 eeprom chip but cant find one to buy online i only can find 950406 K506W or 950406 K304K, if so can i use these other ones to replace the 950406 k128.

It is for a veglia boreti automotive instrument cluster from a fiat punto 2001 - 1999...

It would really help if you answered deeply appreciated.

Thanks in advance :)

PS: I actually made a post about this - https://community.st.com/s/question/0D53W00000j6nNsSAI/hi-there-i-wanted-to-politely-ask-for-your-help-if-you-can-answer-a-simple-question-i-have-a-950406-k128-eeprom-chip-but-cant-find-one-to-buy-online-i-only-can-find-950406-k506w-or-950406-k304k-if-so-can-i-use-these-other-ones-to-replace-the950406k128

YOUNZ.1
YOUNZ.1Author
Associate
February 1, 2021

95042U3 9332K with ST logo

Pierre P.
ST Employee
February 2, 2021

Hello,

After investigations, this marking doesn't fit with standard STMicroelectronics marking for eeprom 4Kbits SPI in SO8N.

Should be:

1st line: 95040xx (with xx = 2 letters)

2nd line: ST logo + KywwX (yww = year+week and X= 1 letter)

YOUNZ.1
YOUNZ.1Author
Associate
February 2, 2021

Hi

thx a lot. But i have the ST logo on the second line and this eeprom is present on a break module (Antiblockin Systeme Wheels) from ATE brand for a european vehicle