Arrangement for column sparing of memory

Details Arrangement for column sparing of memory Arrangement for column sparing of memory

1994-06-27

1995-11-28

Beausoliel, Jr., Robert W.

Excavating

364245, 3642452, 3642453, 3642542, 364255, G06F 1100

Patent

active

054714796

ABSTRACT:
An arrangement for automatic replacement of faulty memory elements in a M-row by N-column memory array provides increased memory reliability. The memory array is coupled to a computer by a group of transceivers. Replacement memory elements are provided in a column replacement fashion and are selectively enabled on a row-by-row basis for detected faults within the memory elements of the memory array. Transceivers are appropriately enabled to select one of two memory elements for each column. For a detected fault in a memory element, each memory element is shifted to an adjacent memory element and the replacement memory element is employed to substituted for the last regular memory element.

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