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Method And Apparatus For Determining Status Element Total With Sequentially Coupled Counting Status Circuits
Patent

Method And Apparatus For Determining Status Element Total With Sequentially Coupled Counting Status Circuits

Macronix International Co., Ltd., 張孟凡, Kuo, Yao-Jen, Hung, Shou-Nan, Hung, Chun-Hsiung and Yang, Yih-Shan
11/09/2014

Abstract

Counting status circuits are electrically coupled to corresponding status elements. The status elements selectably store a bit status of a bit line coupled to a memory array. The bit status can indicate one of at least pass and fail. The counting status circuits are electrically coupled to each other in a sequential order. Control logic causes processing of the counting status circuits in the sequential order to determine a total of the memory elements that store the bit status. The total number of memory elements that store the bit status indicate the number of error bits or non-error bits, which can help determine whether there are too many errors to be fixed by error correction codes.

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