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 Eprom of ECU for Peugeot 406 1.8l 16s		  Forum Locked
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mirka66

France
1 Posts
Posted - 12/10/2011 :  08:35:29  Show Profile
Hi Guys,

Could someone tell me what this type of eprom is ?

Image Insert:

52.66 KB
Car Peugeot 406 1,8l 16S - ECU Bosch MP5.1.1

in a forum post I found this

B58543 Eprom unknown 27C512 unknown

On GQ-4x With 27C512 device i can read it but with write error .

Thanks
Reply #1

ZLM

2945 Posts
Posted - 12/12/2011 :  13:53:21  Show Profile
It may not be 27C512.

Use ID button to check the chip ID. It will report what is this chip.
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Reply #2

benaknoun

Spain
133 Posts
Posted - 02/04/2012 :  04:18:15  Show Profile
quote:
Originally posted by ZLM

It may not be 27C512.

Use ID button to check the chip ID. It will report what is this chip.


Hi ZLM
just out of curiosity, i have tried this function "ID" on a 93S46 chip and it says "function not available for this device"
i have also tried it on other eproms like 24C04...etc and it says the same, is that normal ? is this function only available for certain chips ?
Thanks
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Reply #3

ZLM

2945 Posts
Posted - 02/13/2012 :  20:43:26  Show Profile
Most of small 8 pin EEPROM chips have no ID. So, you are unable to ID those chips. Such as 93S46 and 24C04
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Reply #4

khaahk

22 Posts
Posted - 03/13/2012 :  13:10:29  Show Profile
----------------------------------------------------------------
On GQ-4x With 27C512 device i can read it but with write error .
----------------------------------------------------------------
if it is eprom, it needs to be UV erased, before write.
the image shows an erase window on top of the chip?
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Reply #5

ZLM

2945 Posts
Posted - 03/13/2012 :  13:50:00  Show Profile
yes. All erasable EPROM has a glass window on top. Unless the chip is plastic and OTP chip, then is has no Window on top.
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