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Author Topic: Vision Eprom Chip Size  (Read 3129 times)
bondoexpress
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« on: September 15, 2011, 09:52:59 PM »

Can you tell me what the Stepper Version AM27C010-90DC What does -90DC mean and can I use different sizes for these Chips I see they go all the way to -200
                                     Stepper Game   M27C4001-10B1 what does -10B1 mean and these I see also are in 12F1 can I use either
                                     Stepper Base    M27C4002-12F1  what does -12F1 mean and these are in 10F1 does it matter which Chips I need
Any Help would be Appreciated Thanks
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« Reply #1 on: September 15, 2011, 10:10:22 PM »

all speeds must be 120ns or faster
-90 is 90ns, -10 is 100ns, -12 is 120ns, ns = nanoseconds (lower number is faster)

27c010 is also a 27c1001 128kilobits x 8 bit

Schematics show either 27c801 or 27c080 - 1 megabit x 8 bit for the SG, GME1 & GME2, or game chips
  27c4001 does NOT sound right for the two game chips 27C4001 is 512Kilobit by 8 bit

         note the game chips are interleaved so the game OS can be a  16bit OS.

27C4002 is also a 27C4096 both are 256Kilobits by 16 bit do not even think of using a 27c4001 for a base chip (512Kilobits by 8 bit)
« Last Edit: September 15, 2011, 11:00:42 PM by Foster » Logged

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coorslight115
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« Reply #2 on: September 15, 2011, 10:47:20 PM »

27c4001 chips DO NOT! belong in a S2000. no no
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« Reply #3 on: September 15, 2011, 10:52:35 PM »

27c4001 are too small.
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« Reply #4 on: September 15, 2011, 11:16:45 PM »

27c4001 are too small.

..and they're not TWO friendly: They don't understand words; they only byte.  Odie  arrow Crazy frying pan rotflmao


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« Reply #5 on: September 15, 2011, 11:59:45 PM »

27c4001 are too small.

..and they're not TWO friendly: They don't understand words; they only byte.  Odie  arrow Crazy frying pan rotflmao


SF garfield

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« Reply #6 on: September 16, 2011, 12:48:05 AM »

27c4001 are too small.

..and they're not TWO friendly: They don't understand words; they only byte.  Odie  arrow Crazy frying pan rotflmao


SF garfield

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