EPROMs are programming AOK
trax
trax at frederickmd.com
Tue May 16 16:06:46 GMT 2000
>Can you tell me the manufacturer of this part, please?
I believe it is Fairchild. There is a small 'F' on the chip. I'll know
later when I actually take a good look at the numbers on the chip. Anyhow,
according to Fairchild, the datasheet on the FM27C256 and the NM27C256
EPROMs show that the programming pulse width is a minimum of 45us, a typical
pulse of 50us, and a maximum pulse of 105us. That's pretty good eh?
Check out...
http://www.fairchildsemi.com/pf/FM/FM27C256.html
http://www.fairchildsemi.com/pf/NM/NM27C256.html
Download the spec sheets.
> ftp://ftp.diy-efi.org/incoming/NatSemiAN472.pdf
Thanx for the link!
Tim
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