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Old 23 September 2006, 08:58   #38
Sandgunner
Kill everything in a 360
 
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Join Date: Sep 2006
Location: Near West Chester PA. Made the pilgrimage to the former Amiga assembly plant.
Posts: 23
ok for the gurus out there.

IS the AMD 27C400 a 512k part or a 256k part?

Now the fun part before you answer the above.
The identical spec part for Macronix is the
MX27C4100
Which is identical in all spec respects to the AMD 27C400.

Now the problem that has me stumped.
I have a purchased kickstart 3.1 chip for the A500-A2000
this IS a Macronix MX27C4100 part.

On the EPROM programmer list BOTH parts show as 256K.

How in the hell did they burn a 512k binary image (kickstart 3.1)
into a MX27C4100 which is by the manufacturers spec sheet
and the EPROM programmer, a 256k part just as the AM27C400
EPROM is???????

Ok gurus out there. Have at it
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