Semiconductor memory device for storing n-bit data and 2n-bit da

Details Semiconductor memory device for storing n-bit data and 2n-bit da Semiconductor memory device for storing n-bit data and 2n-bit da

1993-06-22

1994-06-21

Fears, Terrell W.

Static information storage and retrieval

Addressing

36523003, G11C 1140

Patent

active

053233565

ABSTRACT:
First and second memory cell arrays are incorporated in a semiconductor memory device for storing n-bit data codes and 2n-bit data codes, and first and second data input/ output units are respectively provided on the left side of the first memory cell array for the n-bits of the 2n-bit data codes written into or read out from the first memory cell array and on the right side of the second memory cell array for the n-bit data codes and the other n-bits of the 2n-bit data codes written into or read out from the second memory cell array, wherein a third data input/ output unit is further provided on the right side of the first memory cell array for the n-bit data codes written into or read out from the first memory cell array instead of a data propagation path from the second data input/ output unit to the first memory cell array so that the n-bit data codes and the 2n-bit data codes are written and read out at the same speed.

REFERENCES:
patent: 5170374 (1992-12-01), Shimohigashi et al.

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