MCUmall EPROM BIOS Chip Burner Forum
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 Automobile engine ECU, Immo, Air bag chip tunning
 Replacing HONDA ECU AT29C256 by SST27SF512

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T O P I C    R E V I E W
ZLM Posted - 04/28/2008 : 07:33:52
As we know HONDA MCU EPROM chip AT29C256 can be drop-in repaced by W27E257.

Some other chip may need to set the offset when program the chip, such as SST27SF512, need set the offset to 8000H.

more detailes see:

http://www.mcumall.com/forum/topic.asp?TOPIC_ID=1169
1   L A T E S T    R E P L I E S    (Newest First)
DJEsco Posted - 02/08/2010 : 21:28:54
As we are all now discovering SST27SF512 chips are also no longer being manufactured.

and as many I am seeking a 28 pin replacement.

I welcome any feedback or suggestions on this matter.

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