CPC G11C 29/021 (2013.01) [G11C 29/38 (2013.01); G11C 29/44 (2013.01); G11C 29/50 (2013.01)] | 18 Claims |
1. An electronics device, comprising:
memory having at least one memory cell; and
circuitry configured to write a value into the memory cell and to perform a plurality of consecutive read operations for reading the value written into the memory cell, thereby providing a plurality of read values, the circuitry further configured to compare the read values and to determine a value indicative of a number of transitions in the read values based on comparisons of the read values, wherein the circuitry is configured to determine whether the memory cell is storing a noisy bit associated with abnormal voltage fluctuations in the memory cell based on the determined value, and wherein the circuitry is configured to determine whether the memory is counterfeit or defective based on whether the memory cell is determined to be storing the noisy bit.
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