Semiconductor memory device having shifting circuit connected be

Details Semiconductor memory device having shifting circuit connected be Semiconductor memory device having shifting circuit connected be

1994-11-23

1995-11-07

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Bad bit

36518905, 36523003, G11C 1300

Patent

active

054652340

ABSTRACT:
A semiconductor memory device has a plurality of memory cell sub-arrays selectively used as a data storage for prohibiting a defective memory cell sub-array from a data access, and a shifting circuit couples the available memory cell sub-arrays to input and output data buffer circuits higher in a priority than another input and output data buffer circuit regardless of the location of the defective memory cell sub-array in the plurality of memory cell sub-arrays so as to share a printed circuit board between the semiconductor memory devices with the partially available memory cell sub-arrays.

REFERENCES:
patent: 5394369 (1995-02-01), Kagami

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