using old motherboard flash ROMs?

using old motherboard flash ROMs?
by DNSDies on 2012-05-05 (#93363)

I found some old motherboards, and I was wondering just how useful the BIOS flash ROM would be.

Here's the datasheet on it:
http://www.alldatasheet.com/datasheet-p ... PC-12.html

This old motherboard had a DIP-32 bios chip.
I compared it to the 256Kbyte pinout for NES Mask ROMs and it seems about 90% the same.
I'm just worried if the sector structure would be a problem.

If I wanted to use this for, say, FF2 in english, it would work out if the sector structure isn't a problem, right?

by Dwedit on 2012-05-05 (#93364)

They are usually not the same voltage. You should double check that.

by socram8888 on 2012-05-05 (#93384)

Low voltage 3.3v memories usually have a "L" on the model name (eg. "24LC256"). Anyway, they are usually LV-compatible, not LV-only.

by TmEE on 2012-05-06 (#93402)

When its DIP memory it will always work, but when it is PLCC it is likely 3V and even more likely LPC bus memory which is useless

by 80sFREAK on 2012-05-06 (#93406)

TmEE wrote:
When its DIP memory it will always work, but when it is PLCC it is likely 3V and even more likely LPC bus memory which is useless
It depends, how old his m/boards

P.S. I have some SOIC IC's, which are 5V and it makes me happy

by DNSDies on 2012-05-06 (#93413)

Looks like it's 5V

Code:
Programming and erasing voltage 5V ± 10%

by 3gengames on 2012-05-06 (#93414)

I don't see where it says the data bus takes 5V from that sentence, that's the programming voltage.

by DNSDies on 2012-05-06 (#93422)

The datasheet also says it's rated up to 7V for applied input and output voltages and VCC to ground.

Also, Page 17 lists Read/Programming/Erase operations as 5V, and the test conditions for the operating limits are listed as 5V, +/- 10%

so, if I were to use this to make an english translated version of FF2, this would be how I'd rewire it, right?

FF2 Rewiring:
Pin# -- Rewire Needed
Left Side
1 Rewire to 30
2 Lift
3 None
4 None
5 None
6 None
7 None
8 None
9 None
10 None
11 None
12 None
13 None
14 None
15 None
16 None

Right Side
32 None
31 Lift
30 Rewire to 01
29 None
28 None
27 None
26 None
25 None
24 Lift? or Rewire to 02?
23 None
22 None
21 None
20 None
19 None
18 None
17 None