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What to notice if address pin is shared by general port while processed?

Latest Updated:03/23/2009

Question:

When address pin shared by general port is processed, is there any point to notice?

Answer:

Because the address pins which general port is selected as the initial value are the input pins until it is set by PFC, pull-down must be processed. When the address pins are indeterminate, the operation of memory becomes unstable, and there might be a possibility of becoming a defective operation.
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