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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2928 Posts

Posted - 04/28/2008 :  07:33:52  Show Profile  Reply with Quote
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:
Reply #1


6 Posts

Posted - 02/08/2010 :  21:28:54  Show Profile  Reply with Quote
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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