A memory device has an error documentation memory array that is separate from the primary memory array. The error documentation memory array stores data relating to over-programmed bits in the primary array. When the over-programmed bits in the primary array are erased, the error documentation memory array is erased as well, deleting the documentation data relating to the over-programmed bits.

 
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< Authorization control circuit and method

> Portable telephone capable of increasing facility of operation

> Radio communication method including SDL having transmission rate of relatively high speed

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