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Brian Swetland

@tubetime What's the geometry of A[0..8] and DQ[0..3] that results in 256Kx3 for these little memory cubes?

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Tube🍂Time

@swetland it's cursed, the chip is actually 256Kx4 but during manufacturing test they've found that 1 bit doesn't work, so they down bin it as a 256Kx3. and mark with 1 of 4 possible part numbers...

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