I need to replace a bad flash memory chip marked 28F010 on a computer board but this chip appear to have been discontinued.
Can somebody tell me if the 29F010 flash memory chip is hardware and sotware compatible with the 28F010?
"Pipo" schreef in bericht news: snipped-for-privacy@z14g2000cwz.googlegroups.com...
Both devices are pincompatible. Once programmed, they behave the same but the programming algorithms differs too much to make them interchangable. Didn't you find the datasheets? Can mail them if you want to.
petrus bitbyter
27010 eprom is also pin compatible. If you have binary image, you can burn eprom and install in place of 28F010 (assuming you do not need to flash this on board in future). I did this years ago when a user flashed wrong version of bios to PC. 28F010 can be still obtained.
You likely can also find pulls from old mother boards from 486 / 586 era.
If I am not mistaken, the 28 denotes a +12 programing voltage and the
29 denotes a +5. I could be wrong, but once programed they should both work the same.On 19 Oct 2005 03:20:48 -0700, "Pipo" put finger to keyboard and composed:
You *may* run into problems when the BIOS wants to "update NVRAM". The ESCD table, which contains resource information for configuring PnP devices, is generally stored in a reserved area of the flash chip. Windows will also want to write to this area, unless you tell it not to. Some motherboards have a +5V/+12V jumper for selecting the programming voltage, many don't. I don't know how different the programming algorithms for the two chips are, but you could check the list of supported devices for the BIOS flash utility. That may give you an idea as to their software compatibility.
-- Franc Zabkar
Please remove one 'i' from my address when replying by email.
Thank you very much folks. You have all been very helpful.
In the mean time I found AMD=B4s application note #17097 at
Again, thank you all.
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.