admin

回复 1# stevemas
is your chip is KM28C64A?KM28C64A is diffrent with KM28C64

you  try to  choice CAT28C64A  programming it .

admin

回复 5# stevemas28C64 all is same.  but they have diffrent page size.
genuine product KM28C64A page size is 64.  KM28C64  page size is 32.  

AT28C64B(Non-Standard)  none page
AT28C64F   none page
you can test more with duffrect xx2864xx.

admin

I don't understand your answer. I tried every 28C64 in the library - none work. You list the KM28C64 ...
stevemas 发表于 2022-3-20 02:06

I means, your chip may be IC relabeled . so hope test by others.