MCUmall EPROM BIOS Chip Burner Forum
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 Problem reading a new 24c01 eeprom in old system		  New Topic  Reply to Topic
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rsm4mcumall

USA
2 Posts
Posted - 03/25/2013 :  08:18:19  Show Profile  Reply with Quote
I am trying to replace a damaged CSI 24C01BJ EEPROM in an old system.

The problem is that the data is not readable on a new chip in the old system.

I can read the data and write the data to the old chips and install them into the old system and it works perfectly.

I can write the data to a new chip and it will not read when installed in the old system.

I can only read the data on the new chip with the USB programmer.
Using GQ-4X with latest software downloaded from this site.

I have tried the following 2 new chips:
AT24C01BN-SH-T
CAT24C01WI-GT3

I have tired different write speeds also.

I need to be able to install a new chip to replace damaged or corroded ones that get returned from the field.

Why can I read and write to an old original chip, but cant read the data back from a new chip when installed into the system????

Thanks
Edited by - rsm4mcumall on 03/26/2013 07:08:51
Reply #1

ZLM

2937 Posts
Posted - 03/27/2013 :  13:05:48  Show Profile  Reply with Quote
your system needs specific brand of chip. It is your old system cmpatibility problem. It is not universal.

Try to buy exact chip of your old chip.
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Reply #2

M1DJF

United Kingdom
29 Posts
Posted - 05/01/2013 :  06:14:37  Show Profile  Reply with Quote
Try and short pins 1,2,3,4and 5 and than try to read it.
If you can't do it don't screw it leave it as you find it.
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