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Author Topic: EPROM fast enough?  (Read 4273 times)
dpalmi
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« on: November 07, 2008, 05:39:10 PM »
Hello all!

I'm looking to buy some kits for my S2000 machine and I want to make sure the included chips will be fast enough to use in my machine.  The EPROMS are labeld AM27C64 - can anyone tell me the speed of these chips and if they will be fast enough??  I think for a S2000 they have to be faster than 120ns....

Thanks!

Dan #2
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idesign
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« Reply #1 on: November 07, 2008, 06:03:55 PM »
Quote from: dpalmi on November 07, 2008, 05:39:10 PM
Hello all!

I'm looking to buy some kits for my S2000 machine and I want to make sure the included chips will be fast enough to use in my machine.  The EPROMS are labeld AM27C64 - can anyone tell me the speed of these chips and if they will be fast enough??  I think for a S2000 they have to be faster than 120ns....

Thanks!

Dan #2

If you are using S+ kits in the S2000 then 120ns or faster 27C64 chips ware required.  What other numbers are below the AM27C64, maybe a -12, -15 or -20?  the 12 means 120ns, 15 means 150 ns, etc.
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dpalmi
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« Reply #2 on: November 07, 2008, 07:44:03 PM »
Quote from: idesign on November 07, 2008, 06:03:55 PM
If you are using S+ kits in the S2000 then 120ns or faster 27C64 chips ware required.  What other numbers are below the AM27C64, maybe a -12, -15 or -20?  the 12 means 120ns, 15 means 150 ns, etc.

One says -150DC and the other says -200DC - does this help?  Does that mean 150 ns and 200 ns?

Dan #2
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« Reply #3 on: November 07, 2008, 07:50:29 PM »
Yes, you have that correct.  Those chips won't work in an S2000.
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dpalmi
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« Reply #4 on: November 07, 2008, 08:15:28 PM »
Quote from: idesign on November 07, 2008, 07:50:29 PM
Yes, you have that correct.  Those chips won't work in an S2000.

Thanks for the info!  Karma +

Dan #2
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blueridgeslots
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« Reply #5 on: November 08, 2008, 12:15:34 AM »
But you can always reburn the chips on a faster eprom
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dpalmi
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« Reply #6 on: November 08, 2008, 06:16:59 PM »
Quote from: blueridgeslots on November 08, 2008, 12:15:34 AM
But you can always reburn the chips on a faster eprom

Hello Jim,

Yes - but I don't currently own a burner...but I've run across this before and it seems I'm just going to have to buy one.

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« Reply #7 on: November 08, 2008, 06:25:13 PM »
No problem, if you ever need done I am sure many of the members would be glad to help out doing it for you
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